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521 PARK AVENUE

Manhattan· built 1912class RMBBL 1013957502

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What the records show

Risks & missing evidence

Building overview

521 PARK AVENUE is a 24-unit building in Manhattan, built in 1912.

1 unit is on the market here right now.

City records show 30 DOB permits and 24 violation records on file.

Units (res)
24
Floors
12.0
Lot ft²
6,025 ft²
Bldg ft²
49,749 ft²
Assessed
$0
DOF FY2027 final roll
Deeds on this lot · 5 years
Unavailable
Excludes nearby comparable buildings

Official taxes & valuations

$0.00 · DOF market valueWhole tax lot · BBL 1013957502

FY2026–27 final assessment roll · Extract 2026-05-15

Land value
$0.00
Building/improvement value
$0.00
Actual assessed value
$0.00
Assessed land
$0.00
Transitional assessed value
$0.00
Actual assessed-value exemptions
$0.00
Billable assessment before exemptions
$0.00
Billable assessed-value exemptions
$0.00
Taxable assessment after exemptions
$0.00
FY2025–26 DOF market value
$0.00
Prior-year actual assessed value
$0.00
Prior-year taxable assessment
$0.00

DOF values are used for property taxation. Condo and co-op tax valuations can differ substantially from sale prices. This is a tax-purpose estimate; comparable sales remain a separate valuation source. Roll exemptions can include STAR under DOF’s published layout.

These values cover the whole tax lot and do not value individual co-op shares.

Official DOF final assessment roll (ZIP) ↗
$947,447.00 · DOF market valueCondo unit A/B · BBL 1013951101

FY2026–27 final assessment roll · Extract 2026-05-15

+7.4% change in DOF market value from the prior year.

Land value
$366,245.00
Building/improvement value
$581,202.00
Actual assessed value
$426,351.00
Assessed land
$164,810.00
Transitional assessed value
$378,985.00
Actual assessed-value exemptions
$0.00
Billable assessment before exemptions
$378,985.00
Billable assessed-value exemptions
$0.00
Taxable assessment after exemptions
$378,985.00
FY2025–26 DOF market value
$882,137.00
Prior-year actual assessed value
$396,961.00
Prior-year taxable assessment
$353,714.00

DOF values are used for property taxation. Condo and co-op tax valuations can differ substantially from sale prices. This is a tax-purpose estimate; comparable sales remain a separate valuation source. Roll exemptions can include STAR under DOF’s published layout.

Official DOF final assessment roll (ZIP) ↗
$423,181.00 · DOF market valueCondo unit C · BBL 1013951102

FY2026–27 final assessment roll · Extract 2026-05-15

+7.4% change in DOF market value from the prior year.

Land value
$163,602.00
Building/improvement value
$259,579.00
Actual assessed value
$190,432.00
Assessed land
$73,621.00
Transitional assessed value
$170,643.00
Actual assessed-value exemptions
$0.00
Billable assessment before exemptions
$170,643.00
Billable assessed-value exemptions
$0.00
Taxable assessment after exemptions
$170,643.00
FY2025–26 DOF market value
$394,012.00
Prior-year actual assessed value
$177,306.00
Prior-year taxable assessment
$160,531.00

DOF values are used for property taxation. Condo and co-op tax valuations can differ substantially from sale prices. This is a tax-purpose estimate; comparable sales remain a separate valuation source. Roll exemptions can include STAR under DOF’s published layout.

Official DOF final assessment roll (ZIP) ↗
$435,347.00 · DOF market valueCondo unit D · BBL 1013951103

FY2026–27 final assessment roll · Extract 2026-05-15

+7.4% change in DOF market value from the prior year.

Land value
$168,271.00
Building/improvement value
$267,076.00
Actual assessed value
$195,906.00
Assessed land
$75,722.00
Transitional assessed value
$177,550.00
Actual assessed-value exemptions
$0.00
Billable assessment before exemptions
$177,550.00
Billable assessed-value exemptions
$0.00
Taxable assessment after exemptions
$177,550.00
FY2025–26 DOF market value
$405,335.00
Prior-year actual assessed value
$182,401.00
Prior-year taxable assessment
$167,147.00

DOF values are used for property taxation. Condo and co-op tax valuations can differ substantially from sale prices. This is a tax-purpose estimate; comparable sales remain a separate valuation source. Roll exemptions can include STAR under DOF’s published layout.

Official DOF final assessment roll (ZIP) ↗
$1,523,071.00 · DOF market valueCondo unit N · BBL 1013951104

FY2026–27 final assessment roll · Extract 2026-05-15

+7.4% change in DOF market value from the prior year.

Land value
$588,807.00
Building/improvement value
$934,264.00
Actual assessed value
$685,382.00
Assessed land
$264,963.00
Transitional assessed value
$570,261.00
Actual assessed-value exemptions
$0.00
Billable assessment before exemptions
$570,261.00
Billable assessed-value exemptions
$0.00
Taxable assessment after exemptions
$570,261.00
FY2025–26 DOF market value
$1,418,088.00
Prior-year actual assessed value
$638,139.00
Prior-year taxable assessment
$518,185.00

DOF values are used for property taxation. Condo and co-op tax valuations can differ substantially from sale prices. This is a tax-purpose estimate; comparable sales remain a separate valuation source. Roll exemptions can include STAR under DOF’s published layout.

Official DOF final assessment roll (ZIP) ↗
$1,559,953.00 · DOF market valueCondo unit S · BBL 1013951105

FY2026–27 final assessment roll · Extract 2026-05-15

+7.4% change in DOF market value from the prior year.

Land value
$603,073.00
Building/improvement value
$956,880.00
Actual assessed value
$701,979.00
Assessed land
$271,383.00
Transitional assessed value
$601,665.00
Actual assessed-value exemptions
$0.00
Billable assessment before exemptions
$601,665.00
Billable assessed-value exemptions
$0.00
Taxable assessment after exemptions
$601,665.00
FY2025–26 DOF market value
$1,452,428.00
Prior-year actual assessed value
$653,593.00
Prior-year taxable assessment
$564,392.00

DOF values are used for property taxation. Condo and co-op tax valuations can differ substantially from sale prices. This is a tax-purpose estimate; comparable sales remain a separate valuation source. Roll exemptions can include STAR under DOF’s published layout.

Official DOF final assessment roll (ZIP) ↗
$809,739.00 · DOF market valueCondo unit 2A · BBL 1013951106

FY2026–27 final assessment roll · Extract 2026-05-15

+1.4% change in DOF market value from the prior year.

Land value
$97,522.00
Building/improvement value
$712,217.00
Actual assessed value
$364,383.00
Assessed land
$43,885.00
Transitional assessed value
$320,353.00
Actual assessed-value exemptions
$0.00
Billable assessment before exemptions
$320,353.00
Billable assessed-value exemptions
$0.00
Taxable assessment after exemptions
$320,353.00
FY2025–26 DOF market value
$798,777.00
Prior-year actual assessed value
$359,450.00
Prior-year taxable assessment
$313,923.00

DOF values are used for property taxation. Condo and co-op tax valuations can differ substantially from sale prices. This is a tax-purpose estimate; comparable sales remain a separate valuation source. Roll exemptions can include STAR under DOF’s published layout.

Official DOF final assessment roll (ZIP) ↗
$809,739.00 · DOF market valueCondo unit 2B · BBL 1013951107

FY2026–27 final assessment roll · Extract 2026-05-15

+1.4% change in DOF market value from the prior year.

Land value
$97,522.00
Building/improvement value
$712,217.00
Actual assessed value
$364,383.00
Assessed land
$43,885.00
Transitional assessed value
$320,353.00
Actual assessed-value exemptions
$0.00
Billable assessment before exemptions
$320,353.00
Billable assessed-value exemptions
$0.00
Taxable assessment after exemptions
$320,353.00
FY2025–26 DOF market value
$798,777.00
Prior-year actual assessed value
$359,450.00
Prior-year taxable assessment
$313,923.00

DOF values are used for property taxation. Condo and co-op tax valuations can differ substantially from sale prices. This is a tax-purpose estimate; comparable sales remain a separate valuation source. Roll exemptions can include STAR under DOF’s published layout.

Official DOF final assessment roll (ZIP) ↗
$269,915.00 · DOF market valueCondo unit 3A · BBL 1013951108

FY2026–27 final assessment roll · Extract 2026-05-15

+1.4% change in DOF market value from the prior year.

Land value
$32,509.00
Building/improvement value
$237,406.00
Actual assessed value
$121,462.00
Assessed land
$14,629.00
Transitional assessed value
$106,785.00
Actual assessed-value exemptions
$0.00
Billable assessment before exemptions
$106,785.00
Billable assessed-value exemptions
$0.00
Taxable assessment after exemptions
$106,785.00
FY2025–26 DOF market value
$266,261.00
Prior-year actual assessed value
$119,817.00
Prior-year taxable assessment
$104,642.00

DOF values are used for property taxation. Condo and co-op tax valuations can differ substantially from sale prices. This is a tax-purpose estimate; comparable sales remain a separate valuation source. Roll exemptions can include STAR under DOF’s published layout.

Official DOF final assessment roll (ZIP) ↗
$411,042.00 · DOF market valueCondo unit 3B · BBL 1013951109

FY2026–27 final assessment roll · Extract 2026-05-15

+1.4% change in DOF market value from the prior year.

Land value
$49,520.00
Building/improvement value
$361,522.00
Actual assessed value
$184,969.00
Assessed land
$22,284.00
Transitional assessed value
$162,618.00
Actual assessed-value exemptions
$0.00
Billable assessment before exemptions
$162,618.00
Billable assessed-value exemptions
$0.00
Taxable assessment after exemptions
$162,618.00
FY2025–26 DOF market value
$405,478.00
Prior-year actual assessed value
$182,465.00
Prior-year taxable assessment
$159,355.00

DOF values are used for property taxation. Condo and co-op tax valuations can differ substantially from sale prices. This is a tax-purpose estimate; comparable sales remain a separate valuation source. Roll exemptions can include STAR under DOF’s published layout.

Official DOF final assessment roll (ZIP) ↗
$902,696.00 · DOF market valueCondo unit 3C · BBL 1013951110

FY2026–27 final assessment roll · Extract 2026-05-15

+1.4% change in DOF market value from the prior year.

Land value
$108,717.00
Building/improvement value
$793,979.00
Actual assessed value
$406,214.00
Assessed land
$48,923.00
Transitional assessed value
$357,130.00
Actual assessed-value exemptions
$0.00
Billable assessment before exemptions
$357,130.00
Billable assessed-value exemptions
$0.00
Taxable assessment after exemptions
$357,130.00
FY2025–26 DOF market value
$890,476.00
Prior-year actual assessed value
$400,715.00
Prior-year taxable assessment
$349,963.00

DOF values are used for property taxation. Condo and co-op tax valuations can differ substantially from sale prices. This is a tax-purpose estimate; comparable sales remain a separate valuation source. Roll exemptions can include STAR under DOF’s published layout.

Official DOF final assessment roll (ZIP) ↗
$272,948.00 · DOF market valueCondo unit 4A · BBL 1013951111

FY2026–27 final assessment roll · Extract 2026-05-15

+1.4% change in DOF market value from the prior year.

Land value
$32,880.00
Building/improvement value
$240,068.00
Actual assessed value
$122,827.00
Assessed land
$14,796.00
Transitional assessed value
$107,984.00
Actual assessed-value exemptions
$0.00
Billable assessment before exemptions
$107,984.00
Billable assessed-value exemptions
$0.00
Taxable assessment after exemptions
$107,984.00
FY2025–26 DOF market value
$269,253.00
Prior-year actual assessed value
$121,164.00
Prior-year taxable assessment
$105,817.00

DOF values are used for property taxation. Condo and co-op tax valuations can differ substantially from sale prices. This is a tax-purpose estimate; comparable sales remain a separate valuation source. Roll exemptions can include STAR under DOF’s published layout.

Official DOF final assessment roll (ZIP) ↗
$872,518.00 · DOF market valueCondo unit 4B · BBL 1013951112

FY2026–27 final assessment roll · Extract 2026-05-15

+1.4% change in DOF market value from the prior year.

Land value
$105,082.00
Building/improvement value
$767,436.00
Actual assessed value
$392,633.00
Assessed land
$47,287.00
Transitional assessed value
$345,191.00
Actual assessed-value exemptions
$0.00
Billable assessment before exemptions
$345,191.00
Billable assessed-value exemptions
$0.00
Taxable assessment after exemptions
$345,191.00
FY2025–26 DOF market value
$860,706.00
Prior-year actual assessed value
$387,318.00
Prior-year taxable assessment
$338,262.00

DOF values are used for property taxation. Condo and co-op tax valuations can differ substantially from sale prices. This is a tax-purpose estimate; comparable sales remain a separate valuation source. Roll exemptions can include STAR under DOF’s published layout.

Official DOF final assessment roll (ZIP) ↗
$759,524.00 · DOF market valueCondo unit 4C · BBL 1013951113

FY2026–27 final assessment roll · Extract 2026-05-15

+1.4% change in DOF market value from the prior year.

Land value
$91,480.00
Building/improvement value
$668,044.00
Actual assessed value
$341,786.00
Assessed land
$41,166.00
Transitional assessed value
$300,488.00
Actual assessed-value exemptions
$0.00
Billable assessment before exemptions
$300,488.00
Billable assessed-value exemptions
$0.00
Taxable assessment after exemptions
$300,488.00
FY2025–26 DOF market value
$749,242.00
Prior-year actual assessed value
$337,159.00
Prior-year taxable assessment
$294,456.00

DOF values are used for property taxation. Condo and co-op tax valuations can differ substantially from sale prices. This is a tax-purpose estimate; comparable sales remain a separate valuation source. Roll exemptions can include STAR under DOF’s published layout.

Official DOF final assessment roll (ZIP) ↗
$276,122.00 · DOF market valueCondo unit 5A · BBL 1013951114

FY2026–27 final assessment roll · Extract 2026-05-15

+1.4% change in DOF market value from the prior year.

Land value
$33,260.00
Building/improvement value
$242,862.00
Actual assessed value
$124,255.00
Assessed land
$14,967.00
Transitional assessed value
$109,240.00
Actual assessed-value exemptions
$0.00
Billable assessment before exemptions
$109,240.00
Billable assessed-value exemptions
$0.00
Taxable assessment after exemptions
$109,240.00
FY2025–26 DOF market value
$272,384.00
Prior-year actual assessed value
$122,573.00
Prior-year taxable assessment
$107,048.00

DOF values are used for property taxation. Condo and co-op tax valuations can differ substantially from sale prices. This is a tax-purpose estimate; comparable sales remain a separate valuation source. Roll exemptions can include STAR under DOF’s published layout.

Official DOF final assessment roll (ZIP) ↗
$1,773,314.00 · DOF market valueCondo unit 5BC · BBL 1013951115

FY2026–27 final assessment roll · Extract 2026-05-15

+1.4% change in DOF market value from the prior year.

Land value
$213,566.00
Building/improvement value
$1,559,748.00
Actual assessed value
$797,992.00
Assessed land
$96,105.00
Transitional assessed value
$701,570.00
Actual assessed-value exemptions
$0.00
Billable assessment before exemptions
$701,570.00
Billable assessed-value exemptions
$0.00
Taxable assessment after exemptions
$701,570.00
FY2025–26 DOF market value
$1,749,308.00
Prior-year actual assessed value
$787,189.00
Prior-year taxable assessment
$687,487.00

DOF values are used for property taxation. Condo and co-op tax valuations can differ substantially from sale prices. This is a tax-purpose estimate; comparable sales remain a separate valuation source. Roll exemptions can include STAR under DOF’s published layout.

Official DOF final assessment roll (ZIP) ↗
$1,471,945.00 · DOF market valueCondo unit 6A · BBL 1013951116

FY2026–27 final assessment roll · Extract 2026-05-15

+1.4% change in DOF market value from the prior year.

Land value
$177,277.00
Building/improvement value
$1,294,668.00
Actual assessed value
$662,376.00
Assessed land
$79,775.00
Transitional assessed value
$582,341.00
Actual assessed-value exemptions
$0.00
Billable assessment before exemptions
$582,341.00
Billable assessed-value exemptions
$0.00
Taxable assessment after exemptions
$582,341.00
FY2025–26 DOF market value
$1,452,018.00
Prior-year actual assessed value
$653,408.00
Prior-year taxable assessment
$570,652.00

DOF values are used for property taxation. Condo and co-op tax valuations can differ substantially from sale prices. This is a tax-purpose estimate; comparable sales remain a separate valuation source. Roll exemptions can include STAR under DOF’s published layout.

Official DOF final assessment roll (ZIP) ↗
$2,871,212.00 · DOF market valueCondo unit 7 · BBL 1013951119

FY2026–27 final assessment roll · Extract 2026-05-15

+1.4% change in DOF market value from the prior year.

Land value
$345,794.00
Building/improvement value
$2,525,418.00
Actual assessed value
$1,292,045.00
Assessed land
$155,607.00
Transitional assessed value
$1,135,929.00
Actual assessed-value exemptions
$1,292,045.00
Billable assessment before exemptions
$1,292,045.00
Billable assessed-value exemptions
$1,292,045.00
Taxable assessment after exemptions
$0.00
FY2025–26 DOF market value
$2,832,343.00
Prior-year actual assessed value
$1,274,554.00
Prior-year taxable assessment
$0.00

DOF values are used for property taxation. Condo and co-op tax valuations can differ substantially from sale prices. This is a tax-purpose estimate; comparable sales remain a separate valuation source. Roll exemptions can include STAR under DOF’s published layout.

Official DOF final assessment roll (ZIP) ↗
$2,636,718.00 · DOF market valueCondo unit 8A/B/ · BBL 1013951120

FY2026–27 final assessment roll · Extract 2026-05-15

+1.4% change in DOF market value from the prior year.

Land value
$317,557.00
Building/improvement value
$2,319,161.00
Actual assessed value
$1,186,523.00
Assessed land
$142,901.00
Transitional assessed value
$1,043,157.00
Actual assessed-value exemptions
$0.00
Billable assessment before exemptions
$1,043,157.00
Billable assessed-value exemptions
$0.00
Taxable assessment after exemptions
$1,043,157.00
FY2025–26 DOF market value
$2,601,024.00
Prior-year actual assessed value
$1,170,461.00
Prior-year taxable assessment
$1,022,218.00

DOF values are used for property taxation. Condo and co-op tax valuations can differ substantially from sale prices. This is a tax-purpose estimate; comparable sales remain a separate valuation source. Roll exemptions can include STAR under DOF’s published layout.

Official DOF final assessment roll (ZIP) ↗
$288,671.00 · DOF market valueCondo unit 9A · BBL 1013951122

FY2026–27 final assessment roll · Extract 2026-05-15

+1.4% change in DOF market value from the prior year.

Land value
$34,773.00
Building/improvement value
$253,898.00
Actual assessed value
$129,902.00
Assessed land
$15,648.00
Transitional assessed value
$114,206.00
Actual assessed-value exemptions
$0.00
Billable assessment before exemptions
$114,206.00
Billable assessed-value exemptions
$0.00
Taxable assessment after exemptions
$114,206.00
FY2025–26 DOF market value
$284,764.00
Prior-year actual assessed value
$128,144.00
Prior-year taxable assessment
$111,914.00

DOF values are used for property taxation. Condo and co-op tax valuations can differ substantially from sale prices. This is a tax-purpose estimate; comparable sales remain a separate valuation source. Roll exemptions can include STAR under DOF’s published layout.

Official DOF final assessment roll (ZIP) ↗
$41,112.32/yr · $3,426.03/mo equivalentCondo unit A/B · BBL 1013951101

FY2026–27 · DOF statement 2026-08-15 · 521 PARK AVENUE APT A/B

Billable assessment on this statement
$378,985.00
Tax rate on this statement
10.8480%

DOF tax-purpose market value on this statement: $947,447.00.

Read official DOF tax bill ↗
How we calculate your annual taxes:
Billable assessed value: $378,985.00
times the current tax rate: x 10.8480%
Annual property tax: $41,112.32
$18,511.36/yr · $1,542.61/mo equivalentCondo unit C · BBL 1013951102

FY2026–27 · DOF statement 2026-08-15 · 521 PARK AVE. APT C

Billable assessment on this statement
$170,643.00
Tax rate on this statement
10.8480%

DOF tax-purpose market value on this statement: $423,181.00.

Read official DOF tax bill ↗
How we calculate your annual taxes:
Billable assessed value: $170,643.00
times the current tax rate: x 10.8480%
Annual property tax: $18,511.36
$19,260.64/yr · $1,605.05/mo equivalentCondo unit D · BBL 1013951103

FY2026–27 · DOF statement 2026-08-15 · 521 PARK AVENUE APT D

Billable assessment on this statement
$177,550.00
Tax rate on this statement
10.8480%

DOF tax-purpose market value on this statement: $435,347.00.

Read official DOF tax bill ↗
How we calculate your annual taxes:
Billable assessed value: $177,550.00
times the current tax rate: x 10.8480%
Annual property tax: $19,260.64
$59,527.56/yr · $4,960.63/mo equivalentCondo unit N · BBL 1013951104

FY2026–27 · DOF statement 2026-08-15 · 521 PARK AVENUE APT N

The calculation deducts $21,519.00 in assessed-value reductions before applying the tax rate.

Billable assessment on this statement
$570,261.00
Tax rate on this statement
10.8480%

DOF tax-purpose market value on this statement: $1,523,071.00.

Read official DOF tax bill ↗
How we calculate your annual taxes:
Billable assessed value: $570,261.00
minus reductions: – $21,519.00
times the current tax rate: x 10.8480%
Annual property tax: $59,527.56
$62,406.28/yr · $5,200.52/mo equivalentCondo unit S · BBL 1013951105

FY2026–27 · DOF statement 2026-08-15 · 521 PARK AVENUE APT S

The calculation deducts $26,386.00 in assessed-value reductions before applying the tax rate.

Billable assessment on this statement
$601,665.00
Tax rate on this statement
10.8480%

DOF tax-purpose market value on this statement: $1,559,953.00.

Read official DOF tax bill ↗
How we calculate your annual taxes:
Billable assessed value: $601,665.00
minus reductions: – $26,386.00
times the current tax rate: x 10.8480%
Annual property tax: $62,406.28
$37,932.24/yr · $3,161.02/mo equivalentCondo unit 2A · BBL 1013951106

FY2026–27 · DOF statement 2026-08-15 · 521 PARK AVE. APT 2A

The calculation deducts $15,407.00 in assessed-value reductions before applying the tax rate.

Billable assessment on this statement
$320,353.00
Tax rate on this statement
12.4390%

DOF tax-purpose market value on this statement: $809,739.00.

Read official DOF tax bill ↗
How we calculate your annual taxes:
Billable assessed value: $320,353.00
minus reductions: – $15,407.00
times the current tax rate: x 12.4390%
Annual property tax: $37,932.24
$31,294.08/yr · $2,607.84/mo equivalentCondo unit 2B · BBL 1013951107

FY2026–27 · DOF statement 2026-08-15 · 521 PARK AVE. APT 2B

The printed annual tax already deducts $6,638.16 in abatements and/or STAR.

The calculation deducts $15,407.00 in assessed-value reductions before applying the tax rate.

Billable assessment on this statement
$320,353.00
Tax rate on this statement
12.4390%
Annual tax before abatements/STAR
$37,932.24
Monthly equivalent before abatements/STAR
$3,161.02

The before-abatement amount adds the printed deduction back to the annual tax, holding the assessment and rate unchanged. It does not predict benefit expiration, future taxes or a buyer’s eligibility.

DOF tax-purpose market value on this statement: $809,739.00.

Named benefits on the statement
Co-op/Condo Abatement 1 unit $6,638.16
Read official DOF tax bill ↗
How we calculate your annual taxes:
Billable assessed value: $320,353.00
minus reductions: – $15,407.00
times the current tax rate: x 12.4390%
minus abatements and/or STAR: – $6,638.16
Annual property tax: $31,294.08
$12,644.12/yr · $1,053.68/mo equivalentCondo unit 3A · BBL 1013951108

FY2026–27 · DOF statement 2026-08-15 · 521 PARK AVE. APT 3A

The calculation deducts $5,136.00 in assessed-value reductions before applying the tax rate.

Billable assessment on this statement
$106,785.00
Tax rate on this statement
12.4390%

DOF tax-purpose market value on this statement: $269,915.00.

Read official DOF tax bill ↗
How we calculate your annual taxes:
Billable assessed value: $106,785.00
minus reductions: – $5,136.00
times the current tax rate: x 12.4390%
Annual property tax: $12,644.12
$19,255.20/yr · $1,604.60/mo equivalentCondo unit 3B · BBL 1013951109

FY2026–27 · DOF statement 2026-08-15 · 521 PARK AVE. APT 3B

The calculation deducts $7,821.00 in assessed-value reductions before applying the tax rate.

Billable assessment on this statement
$162,618.00
Tax rate on this statement
12.4390%

DOF tax-purpose market value on this statement: $411,042.00.

Read official DOF tax bill ↗
How we calculate your annual taxes:
Billable assessed value: $162,618.00
minus reductions: – $7,821.00
times the current tax rate: x 12.4390%
Annual property tax: $19,255.20
$42,286.88/yr · $3,523.91/mo equivalentCondo unit 3C · BBL 1013951110

FY2026–27 · DOF statement 2026-08-15 · 521 PARK AVE. APT 3C

The calculation deducts $17,176.00 in assessed-value reductions before applying the tax rate.

Billable assessment on this statement
$357,130.00
Tax rate on this statement
12.4390%

DOF tax-purpose market value on this statement: $902,696.00.

Read official DOF tax bill ↗
How we calculate your annual taxes:
Billable assessed value: $357,130.00
minus reductions: – $17,176.00
times the current tax rate: x 12.4390%
Annual property tax: $42,286.88
$12,786.08/yr · $1,065.51/mo equivalentCondo unit 4A · BBL 1013951111

FY2026–27 · DOF statement 2026-08-15 · 521 PARK AVE. APT 4A

The calculation deducts $5,194.00 in assessed-value reductions before applying the tax rate.

Billable assessment on this statement
$107,984.00
Tax rate on this statement
12.4390%

DOF tax-purpose market value on this statement: $272,948.00.

Read official DOF tax bill ↗
How we calculate your annual taxes:
Billable assessed value: $107,984.00
minus reductions: – $5,194.00
times the current tax rate: x 12.4390%
Annual property tax: $12,786.08
$40,873.08/yr · $3,406.09/mo equivalentCondo unit 4B · BBL 1013951112

FY2026–27 · DOF statement 2026-08-15 · 521 PARK AVE. APT 4B

The calculation deducts $16,603.00 in assessed-value reductions before applying the tax rate.

Billable assessment on this statement
$345,191.00
Tax rate on this statement
12.4390%

DOF tax-purpose market value on this statement: $872,518.00.

Read official DOF tax bill ↗
How we calculate your annual taxes:
Billable assessed value: $345,191.00
minus reductions: – $16,603.00
times the current tax rate: x 12.4390%
Annual property tax: $40,873.08
$35,580.04/yr · $2,965.00/mo equivalentCondo unit 4C · BBL 1013951113

FY2026–27 · DOF statement 2026-08-15 · 521 PARK AVE. APT 4C

The calculation deducts $14,452.00 in assessed-value reductions before applying the tax rate.

Billable assessment on this statement
$300,488.00
Tax rate on this statement
12.4390%

DOF tax-purpose market value on this statement: $759,524.00.

Read official DOF tax bill ↗
How we calculate your annual taxes:
Billable assessed value: $300,488.00
minus reductions: – $14,452.00
times the current tax rate: x 12.4390%
Annual property tax: $35,580.04
$10,671.24/yr · $889.27/mo equivalentCondo unit 5A · BBL 1013951114

FY2026–27 · DOF statement 2026-08-15 · 521 PARK AVE. APT 5A

The printed annual tax already deducts $2,263.60 in abatements and/or STAR.

The calculation deducts $5,254.00 in assessed-value reductions before applying the tax rate.

Billable assessment on this statement
$109,240.00
Tax rate on this statement
12.4390%
Annual tax before abatements/STAR
$12,934.84
Monthly equivalent before abatements/STAR
$1,077.90

The before-abatement amount adds the printed deduction back to the annual tax, holding the assessment and rate unchanged. It does not predict benefit expiration, future taxes or a buyer’s eligibility.

DOF tax-purpose market value on this statement: $276,122.00.

Named benefits on the statement
Co-op/Condo Abatement 1 unit $2,263.60
Read official DOF tax bill ↗
How we calculate your annual taxes:
Billable assessed value: $109,240.00
minus reductions: – $5,254.00
times the current tax rate: x 12.4390%
minus abatements and/or STAR: – $2,263.60
Annual property tax: $10,671.24
$83,071.12/yr · $6,922.59/mo equivalentCondo unit 5BC · BBL 1013951115

FY2026–27 · DOF statement 2026-08-15 · 521 PARK AVE. APT 5BC

The calculation deducts $33,742.00 in assessed-value reductions before applying the tax rate.

Billable assessment on this statement
$701,570.00
Tax rate on this statement
12.4390%

DOF tax-purpose market value on this statement: $1,773,314.00.

Read official DOF tax bill ↗
How we calculate your annual taxes:
Billable assessed value: $701,570.00
minus reductions: – $33,742.00
times the current tax rate: x 12.4390%
Annual property tax: $83,071.12
$68,953.64/yr · $5,746.14/mo equivalentCondo unit 6A · BBL 1013951116

FY2026–27 · DOF statement 2026-08-15 · 521 PARK AVE. APT 6A

The calculation deducts $28,007.00 in assessed-value reductions before applying the tax rate.

Billable assessment on this statement
$582,341.00
Tax rate on this statement
12.4390%

DOF tax-purpose market value on this statement: $1,471,945.00.

Read official DOF tax bill ↗
How we calculate your annual taxes:
Billable assessed value: $582,341.00
minus reductions: – $28,007.00
times the current tax rate: x 12.4390%
Annual property tax: $68,953.64
$0.00/yr · $0.00/mo equivalentCondo unit 7 · BBL 1013951119

FY2026–27 · DOF statement 2026-08-15 · 521 PARK AVE. APT 7

The calculation deducts $1,081,296.00 in assessed-value exemptions before applying the tax rate.

The calculation deducts $54,633.00 in assessed-value reductions before applying the tax rate.

Billable assessment on this statement
$1,135,929.00
Tax rate on this statement
12.4390%

DOF tax-purpose market value on this statement: $2,871,212.00.

Read official DOF tax bill ↗
How we calculate your annual taxes:
Billable assessed value: $1,135,929.00
minus reductions: – $54,633.00
minus exemptions: – $1,081,296.00
times the current tax rate: x 12.4390%
Annual property tax: $0.00
$123,517.56/yr · $10,293.13/mo equivalentCondo unit 8A/B/ · BBL 1013951120

FY2026–27 · DOF statement 2026-08-15 · 521 PARK AVENUE APT 8A/B/

The calculation deducts $50,171.00 in assessed-value reductions before applying the tax rate.

Billable assessment on this statement
$1,043,157.00
Tax rate on this statement
12.4390%

DOF tax-purpose market value on this statement: $2,636,718.00.

Read official DOF tax bill ↗
How we calculate your annual taxes:
Billable assessed value: $1,043,157.00
minus reductions: – $50,171.00
times the current tax rate: x 12.4390%
Annual property tax: $123,517.56
$11,156.32/yr · $929.69/mo equivalentCondo unit 9A · BBL 1013951122

FY2026–27 · DOF statement 2026-08-15 · 521 PARK AVENUE APT 9A

The printed annual tax already deducts $2,366.52 in abatements and/or STAR.

The calculation deducts $5,493.00 in assessed-value reductions before applying the tax rate.

Billable assessment on this statement
$114,206.00
Tax rate on this statement
12.4390%
Annual tax before abatements/STAR
$13,522.84
Monthly equivalent before abatements/STAR
$1,126.90

The before-abatement amount adds the printed deduction back to the annual tax, holding the assessment and rate unchanged. It does not predict benefit expiration, future taxes or a buyer’s eligibility.

DOF tax-purpose market value on this statement: $288,671.00.

Named benefits on the statement
Co-op/Condo Abatement 1 unit $2,366.52
Read official DOF tax bill ↗
How we calculate your annual taxes:
Billable assessed value: $114,206.00
minus reductions: – $5,493.00
times the current tax rate: x 12.4390%
minus abatements and/or STAR: – $2,366.52
Annual property tax: $11,156.32

Showing 19 of 29 collected condo-unit/tax-lot bills.

Showing 20 of 30 collected condo-unit/tax-lot valuations.

HOA, common charges and maintenance require documented building or unit evidence. Sales and DOB records do not establish these amounts. A zero property-tax bill does not establish zero PILOT or other ownership charges. Bills may change with tax rates or benefits; monthly figures are annual equivalents.

Look up this tax lot at DOF ↗

Public building financial filings

NY Attorney General offering plans and amendments can document budgets, financial statements, reserves and sponsor obligations. These records cover the development, including properties without active listings.

No exact offering-plan match has been collected here yet. Eligible condo and co-op properties are queued when viewed. Missing filings do not establish zero fees, assessments or debt.

Search the official NYAG offering-plan database ↗

Tax-benefit schedules, statement balances, penalties and declared capital work cover the identified tax lot. Condo billing-lot evidence is shown separately from apartment evidence.

DOF statement balancesTax lot 1013957502 · common condo billing lot

Public balances & charges

Reported itemValuePeriod & scope
Outstanding charges
Evidence

Outstanding charges $0.00

Separate dated balance; do not add to annual costs

Open official source ↗
$0.00As of 2026-08-15
Source reported · exact tax lot
New charges this billing period
Evidence

New charges $0.00

Separate dated balance; do not add to annual costs

Open official source ↗
$0.00As of 2026-08-15
Source reported · exact tax lot
Statement amount due
Evidence

Amount Due 10/01/26: $0.00

Separate dated balance; do not add to annual costs

Due date: 2026-10-01

Open official source ↗
$0.00As of 2026-08-15
Source reported · exact tax lot
Tax Commission Total
Evidence

Tax Commission Total $0.00

May be in statement balance; do not add twice

Open official source ↗
$0.00As of 2026-08-15
Source reported · exact tax lot
Business Improvement District Total
Evidence

Business Improvement District Total $0.00

May be in statement balance; do not add twice

Open official source ↗
$0.00As of 2026-08-15
Source reported · exact tax lot

Source updated 2026-08-15 · collected 2026-10-11.

Open official source ↗
DOB energy disclosureTax lot 1013957502 · common condo billing lot

Penalties, energy & capital work

Reported itemValuePeriod & scope
LL84 reported location-based emissions
Evidence

{"property_id": "4952415", "year_ending": "2024-12-31T00:00:00.000", "nyc_borough_block_and_lot": "1013957502", "number_of_buildings": "1", "metered_areas_energy": "Whole Property", "total_location_based_ghg": "441.73", "property_gfa_self_reported": "53957"}

Reported metric; not a fine

Open official source ↗
441.73 tonnes CO2e2024
Historical actual · reported property / campus
LL84 reported gross floor area
Evidence

{"property_id": "4952415", "year_ending": "2024-12-31T00:00:00.000", "nyc_borough_block_and_lot": "1013957502", "number_of_buildings": "1", "metered_areas_energy": "Whole Property", "total_location_based_ghg": "441.73", "property_gfa_self_reported": "53957"}

Reported metric; not a fine

Open official source ↗
53,957 ft²2024
Historical actual · reported property / campus
LL84 reported location-based emissions
Evidence

{"property_id": "4952415", "year_ending": "2023-12-31T00:00:00.000", "nyc_borough_block_and_lot": "1013957502", "number_of_buildings": "1", "metered_areas_energy": "Whole Property", "total_location_based_ghg": "382.5", "property_gfa_self_reported": "53957"}

Reported metric; not a fine

Open official source ↗
382.5 tonnes CO2e2023
Historical actual · reported property / campus
LL84 reported gross floor area
Evidence

{"property_id": "4952415", "year_ending": "2023-12-31T00:00:00.000", "nyc_borough_block_and_lot": "1013957502", "number_of_buildings": "1", "metered_areas_energy": "Whole Property", "total_location_based_ghg": "382.5", "property_gfa_self_reported": "53957"}

Reported metric; not a fine

Open official source ↗
53,957 ft²2023
Historical actual · reported property / campus
LL84 reported location-based emissions
Evidence

{"property_id": "4952415", "year_ending": "2022-12-31T00:00:00.000", "nyc_borough_block_and_lot": "1-01395-7502", "number_of_buildings": "1", "metered_areas_energy": "Whole Property", "total_location_based_ghg": "466.9", "property_gfa_self_reported": "53957"}

Reported metric; not a fine

Open official source ↗
466.9 tonnes CO2e2022
Historical actual · reported property / campus
LL84 reported gross floor area
Evidence

{"property_id": "4952415", "year_ending": "2022-12-31T00:00:00.000", "nyc_borough_block_and_lot": "1-01395-7502", "number_of_buildings": "1", "metered_areas_energy": "Whole Property", "total_location_based_ghg": "466.9", "property_gfa_self_reported": "53957"}

Reported metric; not a fine

Open official source ↗
53,957 ft²2022
Historical actual · reported property / campus

Complete published 2022–2024 LL84 dataset. Reported property/campus scope can include several buildings and lots; these are not LL97 issued fines.

Reported energy figures may cover several buildings or lots. They are not verified LL97 emissions, a penalty calculation, or this apartment’s utility bill.

Source updated 2025-11-25 · collected 2026-10-09.

Open official source ↗
DOB declared construction workTax lot 1013957502 · common condo billing lot

Penalties, energy & capital work

Reported itemValuePeriod & scope
Declared construction estimate · M01370239-I1-GC#1
Evidence

RENOVATION OF APT 11B FILED IN CONJUNCTION WITH DOB NOW PL. NO CHANGE TO USE, OCCUPANCY OR EGRESS.

Estimate; not an apartment assessment

Open official source ↗
$195,000.00As of 2026-05-26
Declared estimate · exact tax lot
Declared construction estimate · M01370239-S1-PL#1
Evidence

PLUMBING WORK IN APT 11B FILED IN CONJUNCTION WITH DOB NOW GC . NO CHANGE TO USE, OCCUPANCY OR EGRESS.

Estimate; not an apartment assessment

Open official source ↗
$25,200.00As of 2026-05-26
Declared estimate · exact tax lot
Declared construction estimate · M01252561-I1-PL#1
Evidence

Alteration is being filed for the plumbing work at the subject premises as per plans submitted herewith. No change in use, egress or occupancy.

Estimate; not an apartment assessment

Open official source ↗
$50,000.00As of 2025-12-03
Declared estimate · exact tax lot
Declared construction estimate · M01252526-I1-GC#1
Evidence

ALTERATION OF APARTMENT INTERIORS, INSTALLATION OF NEW FINISHES AND FIXTURES. NO CHANGE IN USE, BULK, EGRESS OROCCUPANCY.

Estimate; not an apartment assessment

Open official source ↗
$440,000.00As of 2025-10-16
Declared estimate · exact tax lot
Declared construction estimate · M01146020-S2-ST#1
Evidence

ENLARGE EXISTING (TWO) WINDOWS AT THE BASEMENT LEVEL. NO CHANGE TO USE, EGRESS OR OCCUPANCY.

Estimate; not an apartment assessment

Open official source ↗
$15,000.00As of 2025-05-14
Declared estimate · exact tax lot
Declared construction estimate · M01222501-I1-SH#1
Evidence

Sidewalk SHED installation and hoist at roof as per plans filed herewith.

Estimate; not an apartment assessment

Open official source ↗
$1,000.00As of 2025-05-08
Declared estimate · exact tax lot
Declared construction estimate · M01172821-I1-SH#1
Evidence

Installation of a temporarily heavy-duty sidewalk shed per plan submitted. Work shall comply with 2022 building codes chapter 33. No change in use, egress and/or occupancy with this application.

Estimate; not an apartment assessment

Open official source ↗
$30,000.00As of 2025-01-30
Declared estimate · exact tax lot
Declared construction estimate · M01146020-I1-GC#1
Evidence

INTERIOR RENOVATION OF FINISHES, INCLUDING ALTERATION OF NON-LOAD BEARING PARTITIONS. NO CHANGE TO USE, EGRESS OR OCCUPANCY.

Estimate; not an apartment assessment

Open official source ↗
$60,000.00As of 2024-11-25
Declared estimate · exact tax lot
Declared construction estimate · M01146020-S1-PL#1
Evidence

PLUMBING MODIFICATIONS: REPLACE AND RELOCATE PLUMBING FIXTURES, INSTALL NEW FIXTURES. NO CHANGE TO USE, EGRESS OR OCCUPANCY.

Estimate; not an apartment assessment

Open official source ↗
$31,500.00As of 2024-11-25
Declared estimate · exact tax lot
Declared construction estimate · M00926053-I1-GC#1
Evidence

RENOVATION OF EXISTING BATHROOMS AND REPLACEMENT OF HARDWOOD FLOORING IN TWO BEDROOMS. NO CHANGE TO ZONING, USE, OR EGRESS.

Estimate; not an apartment assessment

Open official source ↗
$32,500.00As of 2024-10-24
Declared estimate · exact tax lot
Declared construction estimate · M01110951-I1-ST#1
Evidence

Install steel platform at building backyard, basement level.

Estimate; not an apartment assessment

Open official source ↗
$35,000.00As of 2024-09-17
Declared estimate · exact tax lot
Declared construction estimate · M00989614-I1-AN#1
Evidence

Dish: Installation of new telecommunication antenna sectors, GPS antenna & equipment cabinet on the roof. Installation of conduits and service room connection as per plans. All work is in compliance with TPPN 5/98. No change in use, egress or occupancy.

Estimate; not an apartment assessment

Open official source ↗
$37,500.00As of 2024-06-14
Declared estimate · exact tax lot
Declared construction estimate · M00969662-P1-SC#1
Evidence

Facade Work

Estimate; not an apartment assessment

Open official source ↗
$0.00As of 2024-04-01
Declared estimate · exact tax lot
Declared construction estimate · M00965813-S1-PL#1
Evidence

Scope of work will include installation of New Plumbing Fixtures and MED Vacuum as indicate don plans. NO change in Use .Occupancy or egress

Estimate; not an apartment assessment

Open official source ↗
$12,500.00As of 2024-01-08
Declared estimate · exact tax lot
Declared construction estimate · M00965813-S2-MS#1
Evidence

Scope of work will include mechanical HVAC Split Condenser Unit - with associate vent and duct work as indicated on plans. No change in Use, Egress or Occupancy.

Estimate; not an apartment assessment

Open official source ↗
$20,000.00As of 2024-01-08
Declared estimate · exact tax lot
Declared construction estimate · M00969662-I1-SC#1
Evidence

Facade Work

Estimate; not an apartment assessment

Open official source ↗
$0.00As of 2023-12-27
Declared estimate · exact tax lot
Declared construction estimate · M00965813-I1-GC#1
Evidence

Scope of Work will include DEMO flooring, partitions , Installation of Flooring Finishes , partitions an dmill work as indicated on plans. No change in Use,Occupancy or Egress.

Estimate; not an apartment assessment

Open official source ↗
$100,000.00As of 2023-12-14
Declared estimate · exact tax lot
Declared construction estimate · M00862998-I1-GC#1
Evidence

FACADE REPAIR. NO CHANGE IN USE, EGRESS, OR OCCUPANCY.

Estimate; not an apartment assessment

Open official source ↗
$1,400,000.00As of 2023-07-19
Declared estimate · exact tax lot
Declared construction estimate · M00799148-I1-MS#1
Evidence

Replacement with new air conditioning and modification of the MH duct work and associated piping on apartments 11C & 12C. No Change of use, egress or occupancy.

Estimate; not an apartment assessment

Open official source ↗
$30,000.00As of 2022-09-09
Declared estimate · exact tax lot
Declared construction estimate · M00799194-I1-PL#1
Evidence

Modification to the existing plumbing fixtures for apts. 11C and 12C. No change of use, egress or occupancy.

Estimate; not an apartment assessment

Open official source ↗
$2,000.01As of 2022-09-09
Declared estimate · exact tax lot
Declared construction estimate · M00765267-I1-ST#1
Evidence

GROUND FLOOR INFILL AND NEW OPENING FOR NEW STAIR.NEW OPENING IN MASONRY WALL AT GROUND FLOOR. TO CONNECT 521 PARK AVENUE AND107 EAST 60TH STREET. THERE IS NO CHANGE IN OCCUPACNY,USE OR EGRESS.

Estimate; not an apartment assessment

Open official source ↗
$15,000.00As of 2022-09-01
Declared estimate · exact tax lot
Declared construction estimate · M00765254-I1-GC#1
Evidence

Creating opening to connect 521 Park Avenue and 107 East 60th Street. There is no change in occupancy, use, or egress.

Estimate; not an apartment assessment

Open official source ↗
$20,000.00As of 2022-08-31
Declared estimate · exact tax lot
Declared construction estimate · M07993532-I1-GC#1
Evidence

INTERIOR RENOVATION OF EXISTING APARTMENTS 11C & 12C. NO CHANGE TO USE, EGRESS OR OCCUPANCY.

Estimate; not an apartment assessment

Open official source ↗
$71,500.00As of 2022-08-29
Declared estimate · exact tax lot
Declared construction estimate · M00677107-I1-SH#1
Evidence

INSTALLATION OF TEMPORARY SIDEWALK SHED AS PER PLANS. NO CHANGE IN USE, EGRESS OR OCCUPANCY.

Estimate; not an apartment assessment

Open official source ↗
$1.00As of 2022-02-10
Declared estimate · exact tax lot

Up to 30 most recent distinct filings from the past five years; this is not a complete capital-work inventory.

Declared job estimates are not actual spending or approved assessments. Repeated permit rows for the same filing are counted once; separate job filings may still describe related work.

Source publication date not provided.

Open official source ↗
DOB declared construction workTax lot 1013957502 · common condo billing lot

Penalties, energy & capital work

Reported itemValuePeriod & scope
Declared construction estimate · M01370239-I1-GC#1
Evidence

RENOVATION OF APT 11B FILED IN CONJUNCTION WITH DOB NOW PL. NO CHANGE TO USE, OCCUPANCY OR EGRESS.

Estimate; not an apartment assessment

Open official source ↗
$195,000.00As of 2026-05-26
Declared estimate · exact tax lot
Declared construction estimate · M01370239-S1-PL#1
Evidence

PLUMBING WORK IN APT 11B FILED IN CONJUNCTION WITH DOB NOW GC . NO CHANGE TO USE, OCCUPANCY OR EGRESS.

Estimate; not an apartment assessment

Open official source ↗
$25,200.00As of 2026-05-26
Declared estimate · exact tax lot
Declared construction estimate · M01252561-I1-PL#1
Evidence

Alteration is being filed for the plumbing work at the subject premises as per plans submitted herewith. No change in use, egress or occupancy.

Estimate; not an apartment assessment

Open official source ↗
$50,000.00As of 2025-12-03
Declared estimate · exact tax lot
Declared construction estimate · M01252526-I1-GC#1
Evidence

ALTERATION OF APARTMENT INTERIORS, INSTALLATION OF NEW FINISHES AND FIXTURES. NO CHANGE IN USE, BULK, EGRESS OROCCUPANCY.

Estimate; not an apartment assessment

Open official source ↗
$440,000.00As of 2025-10-16
Declared estimate · exact tax lot
Declared construction estimate · M01146020-S2-ST#1
Evidence

ENLARGE EXISTING (TWO) WINDOWS AT THE BASEMENT LEVEL. NO CHANGE TO USE, EGRESS OR OCCUPANCY.

Estimate; not an apartment assessment

Open official source ↗
$15,000.00As of 2025-05-14
Declared estimate · exact tax lot
Declared construction estimate · M01222501-I1-SH#1
Evidence

Sidewalk SHED installation and hoist at roof as per plans filed herewith.

Estimate; not an apartment assessment

Open official source ↗
$1,000.00As of 2025-05-08
Declared estimate · exact tax lot
Declared construction estimate · M01172821-I1-SH#1
Evidence

Installation of a temporarily heavy-duty sidewalk shed per plan submitted. Work shall comply with 2022 building codes chapter 33. No change in use, egress and/or occupancy with this application.

Estimate; not an apartment assessment

Open official source ↗
$30,000.00As of 2025-01-30
Declared estimate · exact tax lot
Declared construction estimate · M01146020-I1-GC#1
Evidence

INTERIOR RENOVATION OF FINISHES, INCLUDING ALTERATION OF NON-LOAD BEARING PARTITIONS. NO CHANGE TO USE, EGRESS OR OCCUPANCY.

Estimate; not an apartment assessment

Open official source ↗
$60,000.00As of 2024-11-25
Declared estimate · exact tax lot
Declared construction estimate · M01146020-S1-PL#1
Evidence

PLUMBING MODIFICATIONS: REPLACE AND RELOCATE PLUMBING FIXTURES, INSTALL NEW FIXTURES. NO CHANGE TO USE, EGRESS OR OCCUPANCY.

Estimate; not an apartment assessment

Open official source ↗
$31,500.00As of 2024-11-25
Declared estimate · exact tax lot
Declared construction estimate · M00926053-I1-GC#1
Evidence

RENOVATION OF EXISTING BATHROOMS AND REPLACEMENT OF HARDWOOD FLOORING IN TWO BEDROOMS. NO CHANGE TO ZONING, USE, OR EGRESS.

Estimate; not an apartment assessment

Open official source ↗
$32,500.00As of 2024-10-24
Declared estimate · exact tax lot
Declared construction estimate · M01110951-I1-ST#1
Evidence

Install steel platform at building backyard, basement level.

Estimate; not an apartment assessment

Open official source ↗
$35,000.00As of 2024-09-17
Declared estimate · exact tax lot
Declared construction estimate · M00989614-I1-AN#1
Evidence

Dish: Installation of new telecommunication antenna sectors, GPS antenna & equipment cabinet on the roof. Installation of conduits and service room connection as per plans. All work is in compliance with TPPN 5/98. No change in use, egress or occupancy.

Estimate; not an apartment assessment

Open official source ↗
$37,500.00As of 2024-06-14
Declared estimate · exact tax lot
Declared construction estimate · M00969662-P1-SC#1
Evidence

Facade Work

Estimate; not an apartment assessment

Open official source ↗
$0.00As of 2024-04-01
Declared estimate · exact tax lot
Declared construction estimate · M00965813-S1-PL#1
Evidence

Scope of work will include installation of New Plumbing Fixtures and MED Vacuum as indicate don plans. NO change in Use .Occupancy or egress

Estimate; not an apartment assessment

Open official source ↗
$12,500.00As of 2024-01-08
Declared estimate · exact tax lot
Declared construction estimate · M00965813-S2-MS#1
Evidence

Scope of work will include mechanical HVAC Split Condenser Unit - with associate vent and duct work as indicated on plans. No change in Use, Egress or Occupancy.

Estimate; not an apartment assessment

Open official source ↗
$20,000.00As of 2024-01-08
Declared estimate · exact tax lot
Declared construction estimate · M00969662-I1-SC#1
Evidence

Facade Work

Estimate; not an apartment assessment

Open official source ↗
$0.00As of 2023-12-27
Declared estimate · exact tax lot
Declared construction estimate · M00965813-I1-GC#1
Evidence

Scope of Work will include DEMO flooring, partitions , Installation of Flooring Finishes , partitions an dmill work as indicated on plans. No change in Use,Occupancy or Egress.

Estimate; not an apartment assessment

Open official source ↗
$100,000.00As of 2023-12-14
Declared estimate · exact tax lot
Declared construction estimate · M00862998-I1-GC#1
Evidence

FACADE REPAIR. NO CHANGE IN USE, EGRESS, OR OCCUPANCY.

Estimate; not an apartment assessment

Open official source ↗
$1,400,000.00As of 2023-07-19
Declared estimate · exact tax lot
Declared construction estimate · M00799148-I1-MS#1
Evidence

Replacement with new air conditioning and modification of the MH duct work and associated piping on apartments 11C & 12C. No Change of use, egress or occupancy.

Estimate; not an apartment assessment

Open official source ↗
$30,000.00As of 2022-09-09
Declared estimate · exact tax lot
Declared construction estimate · M00799194-I1-PL#1
Evidence

Modification to the existing plumbing fixtures for apts. 11C and 12C. No change of use, egress or occupancy.

Estimate; not an apartment assessment

Open official source ↗
$2,000.01As of 2022-09-09
Declared estimate · exact tax lot
Declared construction estimate · M00765267-I1-ST#1
Evidence

GROUND FLOOR INFILL AND NEW OPENING FOR NEW STAIR.NEW OPENING IN MASONRY WALL AT GROUND FLOOR. TO CONNECT 521 PARK AVENUE AND107 EAST 60TH STREET. THERE IS NO CHANGE IN OCCUPACNY,USE OR EGRESS.

Estimate; not an apartment assessment

Open official source ↗
$15,000.00As of 2022-09-01
Declared estimate · exact tax lot
Declared construction estimate · M00765254-I1-GC#1
Evidence

Creating opening to connect 521 Park Avenue and 107 East 60th Street. There is no change in occupancy, use, or egress.

Estimate; not an apartment assessment

Open official source ↗
$20,000.00As of 2022-08-31
Declared estimate · exact tax lot
Declared construction estimate · M07993532-I1-GC#1
Evidence

INTERIOR RENOVATION OF EXISTING APARTMENTS 11C & 12C. NO CHANGE TO USE, EGRESS OR OCCUPANCY.

Estimate; not an apartment assessment

Open official source ↗
$71,500.00As of 2022-08-29
Declared estimate · exact tax lot
Declared construction estimate · M00677107-I1-SH#1
Evidence

INSTALLATION OF TEMPORARY SIDEWALK SHED AS PER PLANS. NO CHANGE IN USE, EGRESS OR OCCUPANCY.

Estimate; not an apartment assessment

Open official source ↗
$1.00As of 2022-02-10
Declared estimate · exact tax lot

Up to 30 most recent distinct filings from the past five years; this is not a complete capital-work inventory.

Declared job estimates are not actual spending or approved assessments. Repeated permit rows for the same filing are counted once; separate job filings may still describe related work.

Source publication date not provided.

Open official source ↗
Model annual LL97 emissions exposure

Enter verified LL97 emissions and the applicable annual limit. LL84 location-based emissions above are a different reported metric and are not automatically used here.

Enter both assumptions to calculate exposure.

Before exemptions, adjustments, offsets or penalty mitigation. This scenario does not establish an issued fine or an apartment charge.

Official DOB penalty guidance ↗

Active sale listings (1)

AddressNeighborhoodPrice$/ft²SqftBeds/Bathsvs compDOMRiskScore
521 PARK AVENUE #10C
Manhattan · built 1912
-$2.75M$1,6341,683 ft²2 bd · 2 ba-36
2 DOBbedbug
4.3Source

Building activity

Open a record to read the full agency text.

Housing violations (HPD) 5

Housing violationClass BJul 3, 1995Violation closed

§ 27-2005, 2007 ADM CODE ARRANGE AND MAKE SELF-CLOSING THE DOORS AT ROOF BULKHEAD STAIR.

HPD record 2708100
Housing violationClass BJul 3, 1995Violation closed

§ 27-2005, 2007 ADM CODE FIRE EGRESS DEFECTIVE. REMOVE THE OBSTRUCTION IN FIREPROOF PASSAGEWAY CONSISTING OF DOORS & BRICK ETC AT NORTH.

HPD record 2708101
Housing violationClass BJul 3, 1995Violation closed

§ 27-2005, 2007 ADM CODE AND DEPT. RULES AND REGULATIONS. REMOVE THE ENCUMBRANCE OBSTRUCTING EGRESS FROM FIRE ESCAPES AIR CONDITIONER PROTRUDING BEYOND WINDOW SILL AT NORTH STACK 2 STY BALCONY.

HPD record 2708102
Show 2 more records
Housing violationClass BJul 3, 1995Violation closed

§ 27-2005, 2007 ADM CODE AND DEPT. RULES AND REGULATIONS. REMOVE THE ENCUMBRANCE OBSTRUCTING EGRESS FROM FIRE ESCAPES AIR CONDITIONER PROTRUDING BEYOND WINDOW SILL AT NORTH STACK 12 STY BALCONY.

HPD record 2708103
Housing violationClass BMar 1, 1989 · Apt 6CViolation closed

§ 27-2005 ADM CODE REPLACE WITH NEW THE BROKEN OR DEFECTIVE RADIATOR CONTROL VALVE 2 FROM WEST AT SOUTH 6 STY SOUTH APT 6C. , SECTION '' ''

HPD record 2708099

Work permits (DOB) 30

General ConstructionMay 26, 2026Permit issued

RENOVATION OF APT 11B FILED IN CONJUNCTION WITH DOB NOW PL. NO CHANGE TO USE, OCCUPANCY OR EGRESS.

IVENKO INC

Issued Aug 11, 2026

DOB filing M01370239-I1-GC#1
PlumbingMay 26, 2026Permit issued

PLUMBING WORK IN APT 11B FILED IN CONJUNCTION WITH DOB NOW GC . NO CHANGE TO USE, OCCUPANCY OR EGRESS.

ORBIT PLBG & HTG INC

Issued Aug 14, 2026

DOB filing M01370239-S1-PL#1
PlumbingDec 3, 2025Permit issued

Alteration is being filed for the plumbing work at the subject premises as per plans submitted herewith. No change in use, egress or occupancy.

ORBIT PLBG & HTG INC

Issued Dec 4, 2025

DOB filing M01252561-I1-PL#1
Show 27 more records
PlumbingDec 3, 2025Permit issued

Alteration is being filed for the plumbing work at the subject premises as per plans submitted herewith. No change in use, egress or occupancy.

ORBIT PLBG & HTG INC

Issued Nov 4, 2026

DOB filing M01252561-I1-PL#2
General ConstructionOct 16, 2025Permit issued

ALTERATION OF APARTMENT INTERIORS, INSTALLATION OF NEW FINISHES AND FIXTURES. NO CHANGE IN USE, BULK, EGRESS OROCCUPANCY.

ROCKHILL CONSTRUCTION CO

Issued Nov 25, 2025

DOB filing M01252526-I1-GC#1
StructuralMay 14, 2025Permit issued

ENLARGE EXISTING (TWO) WINDOWS AT THE BASEMENT LEVEL. NO CHANGE TO USE, EGRESS OR OCCUPANCY.

STAR-CEL WATERPROOFING

Issued Jul 2, 2025

DOB filing M01146020-S2-ST#1
Sidewalk ShedMay 8, 2025Permit issued

Sidewalk SHED installation and hoist at roof as per plans filed herewith.

STAR-CEL WATERPROOFING

Issued May 8, 2025

DOB filing M01222501-I1-SH#1
Sidewalk ShedJan 30, 2025Signed-off

Installation of a temporarily heavy-duty sidewalk shed per plan submitted. Work shall comply with 2022 building codes chapter 33. No change in use, egress and/or occupancy with this application.

WEST NEW YORK RESTORATION

Issued Jan 30, 2025

DOB filing M01172821-I1-SH#1
General ConstructionNov 25, 2024Permit issued

INTERIOR RENOVATION OF FINISHES, INCLUDING ALTERATION OF NON-LOAD BEARING PARTITIONS. NO CHANGE TO USE, EGRESS OR OCCUPANCY.

RZ PROJECT MANAGEMENT COR

Issued Dec 13, 2024

DOB filing M01146020-I1-GC#1
PlumbingNov 25, 2024Permit issued

PLUMBING MODIFICATIONS: REPLACE AND RELOCATE PLUMBING FIXTURES, INSTALL NEW FIXTURES. NO CHANGE TO USE, EGRESS OR OCCUPANCY.

HI-TECH PLUMBING & HEATIN

Issued Apr 28, 2025

DOB filing M01146020-S1-PL#1
General ConstructionOct 24, 2024Signed-off

RENOVATION OF EXISTING BATHROOMS AND REPLACEMENT OF HARDWOOD FLOORING IN TWO BEDROOMS. NO CHANGE TO ZONING, USE, OR EGRESS.

EMPHASIS CONSTRUCTION LLC

Issued Oct 29, 2024

DOB filing M00926053-I1-GC#1
General ConstructionOct 24, 2024Signed-off

RENOVATION OF EXISTING BATHROOMS AND REPLACEMENT OF HARDWOOD FLOORING IN TWO BEDROOMS. NO CHANGE TO ZONING, USE, OR EGRESS.

EMPHASIS CONSTRUCTION LLC

Issued Dec 30, 2024

DOB filing M00926053-I1-GC#2
StructuralSep 17, 2024Permit issued

Install steel platform at building backyard, basement level.

FERNAN DEVINE

Issued Oct 23, 2024

DOB filing M01110951-I1-ST#1
AntennaJun 14, 2024Signed-off

Dish: Installation of new telecommunication antenna sectors, GPS antenna & equipment cabinet on the roof. Installation of conduits and service room connection as per plans. All work is in compliance with TPPN 5/98. No change in use, egress or occupancy.

TRISTRUX LLC

Issued Jun 25, 2024

DOB filing M00989614-I1-AN#1
Suspended ScaffoldApr 1, 2024Permit issued

Facade Work

Issued Apr 1, 2024

DOB filing M00969662-P1-SC#1
PlumbingJan 8, 2024Permit issued

Scope of work will include installation of New Plumbing Fixtures and MED Vacuum as indicate don plans. NO change in Use .Occupancy or egress

AURA PLUMBING INC

Issued Feb 14, 2024

DOB filing M00965813-S1-PL#1
Mechanical SystemsJan 8, 2024Permit issued

Scope of work will include mechanical HVAC Split Condenser Unit - with associate vent and duct work as indicated on plans. No change in Use, Egress or Occupancy.

PRIME RENOVATIONS &

Issued Jan 30, 2024

DOB filing M00965813-S2-MS#1
Suspended ScaffoldDec 27, 2023Permit issued

Facade Work

Issued Dec 27, 2023

DOB filing M00969662-I1-SC#1
Suspended ScaffoldDec 27, 2023Permit issued

Facade Work

STAR-CEL WATERPR&RESTR CO

Issued Jan 3, 2025

DOB filing M00969662-I1-SC#2
General ConstructionDec 14, 2023Permit issued

Scope of Work will include DEMO flooring, partitions , Installation of Flooring Finishes , partitions an dmill work as indicated on plans. No change in Use,Occupancy or Egress.

PRIME RENOVATIONS &

Issued Dec 20, 2023

DOB filing M00965813-I1-GC#1
General ConstructionJul 19, 2023Signed-off

FACADE REPAIR. NO CHANGE IN USE, EGRESS, OR OCCUPANCY.

STAR-CEL WATERPROOFING

Issued Nov 14, 2024

DOB filing M00862998-I1-GC#2
General ConstructionJul 19, 2023Signed-off

FACADE REPAIR. NO CHANGE IN USE, EGRESS, OR OCCUPANCY.

STAR-CEL WATERPROOFING

Issued Nov 17, 2023

DOB filing M00862998-I1-GC#1
PlumbingSep 9, 2022Signed-off

Modification to the existing plumbing fixtures for apts. 11C and 12C. No change of use, egress or occupancy.

RUGOVA GROUP LLC

Issued Dec 1, 2022

DOB filing M00799194-I1-PL#1
PlumbingSep 9, 2022Signed-off

Modification to the existing plumbing fixtures for apts. 11C and 12C. No change of use, egress or occupancy.

RUGOVA GROUP LLC

Issued Jan 16, 2024

DOB filing M00799194-I1-PL#2
Mechanical SystemsSep 9, 2022Signed-off

Replacement with new air conditioning and modification of the MH duct work and associated piping on apartments 11C & 12C. No Change of use, egress or occupancy.

I & H CONSTRUCTION LLC

Issued Mar 29, 2024

DOB filing M00799148-I1-MS#3
Mechanical SystemsSep 9, 2022Signed-off

Replacement with new air conditioning and modification of the MH duct work and associated piping on apartments 11C & 12C. No Change of use, egress or occupancy.

I & H CONSTRUCTION LLC

Issued Nov 29, 2022

DOB filing M00799148-I1-MS#1
StructuralSep 1, 2022Signed-off

GROUND FLOOR INFILL AND NEW OPENING FOR NEW STAIR.NEW OPENING IN MASONRY WALL AT GROUND FLOOR. TO CONNECT 521 PARK AVENUE AND107 EAST 60TH STREET. THERE IS NO CHANGE IN OCCUPACNY,USE OR EGRESS.

PRIME RENOVATIONS &

Issued Sep 20, 2022

DOB filing M00765267-I1-ST#1
General ConstructionAug 31, 2022Signed-off

Creating opening to connect 521 Park Avenue and 107 East 60th Street. There is no change in occupancy, use, or egress.

PRIME RENOVATIONS &

Issued Sep 20, 2022

DOB filing M00765254-I1-GC#1
General ConstructionAug 29, 2022Signed-off

INTERIOR RENOVATION OF EXISTING APARTMENTS 11C & 12C. NO CHANGE TO USE, EGRESS OR OCCUPANCY.

I & H CONSTRUCTION LLC

Issued Jan 11, 2024

DOB filing M07993532-I1-GC#2
General ConstructionAug 29, 2022Signed-off

INTERIOR RENOVATION OF EXISTING APARTMENTS 11C & 12C. NO CHANGE TO USE, EGRESS OR OCCUPANCY.

I & H CONSTRUCTION LLC

Issued Nov 29, 2022

DOB filing M07993532-I1-GC#1

Latest 30 records shown.

Building violations (DOB) 19

E-ELEVATOR ELEVATORREQUIREDDec 28, 2021No disposition date supplied

Agency description not supplied.

DOB record 2567974
E-ELEVATOR ELEVATORREQUIREDDec 28, 2021No disposition date supplied

Agency description not supplied.

DOB record 2564459
E-ELEVATOR ELEVATORREQUIREDAug 6, 2019Disposition recorded Sep 13, 2019

Agency description not supplied.

DOB record 449903
Show 16 more records
E-ELEVATOR ELEVATORREQUIREDAug 6, 2019Disposition recorded Sep 13, 2019

Agency description not supplied.

DOB record 449770
E-ELEVATOR ELEVATORREQUIREDJul 30, 2018Disposition recorded Dec 16, 2022

Agency description not supplied.

DOB record 2304481
E-ELEVATOR ELEVATORREQUIREDJul 30, 2018Disposition recorded Dec 16, 2022

Agency description not supplied.

DOB record 2304482
E-ELEVATOR ELEVATORREQUIREDAug 13, 2015Disposition recorded Apr 12, 2016

Agency description not supplied.

DOB record 1996001
E-ELEVATOR ELEVATORREQUIREDAug 11, 2014Disposition recorded Jul 13, 2015

Agency description not supplied.

DOB record 1905320
E-ELEVATOR ELEVATORREQUIREDAug 11, 2014Disposition recorded Jul 13, 2015

Agency description not supplied.

DOB record 1983876
E-ELEVATOR ELEVATORREQUIREDJun 25, 2013Disposition recorded Nov 4, 2013

Agency description not supplied.

DOB record 1798373
E-ELEVATOR ELEVATORREQUIREDJan 6, 2011Disposition recorded Jul 31, 2013

Agency description not supplied.

DOB record 1790651
E-ELEVATOR ELEVATORREQUIREDJan 6, 2011Disposition recorded Jul 31, 2013

Agency description not supplied.

DOB record 1553871
E-ELEVATOR ELEVATORREQUIREDDec 16, 2008Disposition recorded Jul 31, 2013

Agency description not supplied.

DOB record 1363769
E-ELEVATOR ELEVATORREQUIREDDec 16, 2008Disposition recorded Jul 31, 2013

Agency description not supplied.

DOB record 1363767
E-ELEVATOR ELEVATORREQUIREDJan 23, 2008Disposition recorded Dec 11, 2008

Agency description not supplied.

DOB record 1264916
E-ELEVATOR ELEVATORREQUIREDJan 23, 2008Disposition recorded Dec 11, 2008

Agency description not supplied.

DOB record 1360893
E-ELEVATOR ELEVATORREQUIREDJul 1, 2004Disposition recorded Dec 15, 2004

Agency description not supplied.

DOB record 996743
E-ELEVATOR ELEVATORREQUIREDJul 1, 2004Disposition recorded Nov 8, 2007

Agency description not supplied.

DOB record 996742
E-ELEVATOR ELEVATORREQUIREDSep 16, 1988Disposition recorded Jun 12, 1990

(28.29)CLEAN OIL LEAK AND MAIN MACHINE

DOB record 17571
Transaction history · 0 deeds

Recorded consideration. A $0 deed is not a sale price.

No recorded transactions for this BBL yet.

More buildings on this block

Sources, coverage & freshness

Sources & freshness

Research contract nyc_property_research.v1 · snapshot Nov 6, 2026

Stable property ID: nyc:bbl:1013957502

This identifier represents an NYC tax lot. Condo and co-op apartment identity must be resolved separately.

Tax lot and building facts

NYC Department of City Planning (PLUTO)

completed
1 tax-lot record in the current corpus · latest record Nov 1, 2026

Pipeline completed Nov 1, 2026

The current PLUTO pipeline is configured for Manhattan and Brooklyn.

PLUTO describes the tax lot and buildings, not legal ownership of an individual apartment.

Marketed sale listings

StreetEasy, observed by CurbScoop

completed
1 active sale listing in the current corpus · latest record May 11, 2026

Pipeline completed Aug 31, 2026

Retired source: collection stopped on 2026-08-31, so these are the last Manhattan and Brooklyn listings observed, not the current market.

Listing observations describe marketed state as of 2026-08-31 at the latest and are not proof of a closing or exhaustive market coverage.

Recorded transfers

NYC Department of Finance, Office of the City Register (ACRIS)

completed
0 recorded deeds in the current corpus

Pipeline completed Nov 6, 2026

Deed document types associated with this BBL in the current CurbScoop corpus.

Recording can lag a transaction, and a deed with no stated consideration is not evidence of a market sale.

DOB permits

NYC Department of Buildings via NYC Open Data

completed
179 permits in the current corpus · latest record Nov 4, 2026

Pipeline completed Nov 6, 2026

The current DOB permit pipeline is configured for Manhattan and Brooklyn.

A filing or permit does not prove that work was completed or that all work at the property was filed.

HPD violations

NYC Department of Housing Preservation and Development via NYC Open Data

completed
5 violations in the current corpus · latest record Feb 27, 2015

Pipeline completed Nov 6, 2026

The current HPD violation pipeline is configured for Manhattan and Brooklyn.

Status and correction timing come from the published agency record and may change after CurbScoop observes it.

DOB violations

NYC Department of Buildings via NYC Open Data

completed
19 violations in the current corpus · latest record Dec 16, 2022

Pipeline completed Nov 6, 2026

The current DOB violation pipeline is configured for Manhattan and Brooklyn.

Absence from the current corpus is not proof that a building has no regulatory issue.

Counts and dates describe the current CurbScoop corpus. They are not a guarantee of exhaustive agency or listing coverage.

How to read these records

Deed amounts are recorded consideration, not asking prices or a unit valuation. A blank record is not proof that an issue does not exist.

Recorded salesComparable salesBuilding identifiers