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9729 4 AVENUE is an 8-unit building in Fort Hamilton, Brooklyn, built in 1985.
2 units are on the market here right now.
City records show 3 DOB permits on file.
FY2026–27 final assessment roll · Extract 2026-05-15
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) ↗FY2026–27 final assessment roll · Extract 2026-05-15
+8.9% change in DOF market value from the prior year.
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) ↗FY2026–27 final assessment roll · Extract 2026-05-15
+22.9% change in DOF market value from the prior year.
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) ↗FY2026–27 final assessment roll · Extract 2026-05-15
+22.9% change in DOF market value from the prior year.
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) ↗FY2026–27 final assessment roll · Extract 2026-05-15
+22.9% change in DOF market value from the prior year.
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) ↗FY2026–27 final assessment roll · Extract 2026-05-15
+22.9% change in DOF market value from the prior year.
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) ↗FY2026–27 final assessment roll · Extract 2026-05-15
+8.9% change in DOF market value from the prior year.
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) ↗FY2026–27 final assessment roll · Extract 2026-05-15
+22.9% change in DOF market value from the prior year.
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) ↗FY2026–27 final assessment roll · Extract 2026-05-15
+22.9% change in DOF market value from the prior year.
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) ↗FY2026–27 final assessment roll · Extract 2026-05-15
+22.9% change in DOF market value from the prior year.
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) ↗FY2026–27 final assessment roll · Extract 2026-05-15
+22.9% change in DOF market value from the prior year.
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) ↗FY2026–27 · DOF statement 2026-08-15 · 9729 4 AVENUE APT COM1
DOF tax-purpose market value on this statement: $280,938.00.
Read official DOF tax bill ↗How we calculate your annual taxes: Billable assessed value: $117,562.00 times the current tax rate: x 10.8480% Annual property tax: $12,753.16
FY2026–27 · DOF statement 2026-08-15 · 9729 4 AVENUE APT B2
DOF tax-purpose market value on this statement: $515,107.00.
Read official DOF tax bill ↗How we calculate your annual taxes: Billable assessed value: $8,642.00 times the current tax rate: x 19.8430% Annual property tax: $1,714.84
FY2026–27 · DOF statement 2026-08-15 · 9729 4 AVENUE APT C2
DOF tax-purpose market value on this statement: $726,924.00.
Read official DOF tax bill ↗How we calculate your annual taxes: Billable assessed value: $12,194.00 times the current tax rate: x 19.8430% Annual property tax: $2,419.68
FY2026–27 · DOF statement 2026-08-15 · 9729 4 AVENUE APT B3
DOF tax-purpose market value on this statement: $515,107.00.
Read official DOF tax bill ↗How we calculate your annual taxes: Billable assessed value: $8,642.00 times the current tax rate: x 19.8430% Annual property tax: $1,714.84
FY2026–27 · DOF statement 2026-08-15 · 9729 4 AVENUE APT C3
DOF tax-purpose market value on this statement: $726,924.00.
Read official DOF tax bill ↗How we calculate your annual taxes: Billable assessed value: $12,194.00 times the current tax rate: x 19.8430% Annual property tax: $2,419.68
FY2026–27 · DOF statement 2026-08-15 · 9731 4 AVENUE APT COM2
DOF tax-purpose market value on this statement: $280,938.00.
Read official DOF tax bill ↗How we calculate your annual taxes: Billable assessed value: $117,562.00 times the current tax rate: x 10.8480% Annual property tax: $12,753.16
FY2026–27 · DOF statement 2026-08-15 · 9731 4TH AVE. APT 2B
The printed annual tax already deducts $269.00 in abatements and/or STAR.
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: $515,107.00.
Basic Star - School Tax Relief $269.00
How we calculate your annual taxes: Billable assessed value: $8,642.00 times the current tax rate: x 19.8430% minus abatements and/or STAR: – $269.00 Annual property tax: $1,445.84
FY2026–27 · DOF statement 2026-08-15 · 9731 4TH AVE. APT 2C
The printed annual tax already deducts $659.00 in abatements and/or STAR.
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: $726,924.00.
Enhanced Star - School Tax Relief $659.00
How we calculate your annual taxes: Billable assessed value: $12,194.00 times the current tax rate: x 19.8430% minus abatements and/or STAR: – $659.00 Annual property tax: $1,760.68
FY2026–27 · DOF statement 2026-08-15 · 9731 4TH AVE. APT 3B
DOF tax-purpose market value on this statement: $515,107.00.
Read official DOF tax bill ↗How we calculate your annual taxes: Billable assessed value: $8,642.00 times the current tax rate: x 19.8430% Annual property tax: $1,714.84
FY2026–27 · DOF statement 2026-08-15 · 9731 4TH AVE. APT 3C
DOF tax-purpose market value on this statement: $726,924.00.
Read official DOF tax bill ↗How we calculate your annual taxes: Billable assessed value: $12,194.00 times the current tax rate: x 19.8430% Annual property tax: $2,419.68
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 ↗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.
| Reported item | Value | Period & scope |
|---|---|---|
Outstanding chargesEvidenceOutstanding charges $0.00 Separate dated balance; do not add to annual costs Open official source ↗ | $0.00 | As of 2026-08-15 Source reported · exact tax lot |
| New charges this billing period | $0.00 | As of 2026-08-15 Source reported · exact tax lot |
Statement amount dueEvidenceAmount Due 10/01/26: $0.00 Separate dated balance; do not add to annual costs Due date: 2026-10-01 Open official source ↗ | $0.00 | As of 2026-08-15 Source reported · exact tax lot |
Source updated 2026-08-15 · collected 2026-10-13.
Open official source ↗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 ↗| Address | Neighborhood | Price | $/ft² | Sqft | Beds/Baths | vs comp | DOM | Risk | Score | ||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 9729 4 AVENUE #3C Brooklyn · built 1985 | Fort Hamilton | $508K | $880 | 577 ft² | 1 bd · 1 ba | - | 149 | bedbug | 12.1 | Source | |
| 9731 4 AVENUE #2C Brooklyn · built 1985 | Fort Hamilton | $499K | $865 | 577 ft² | 1 bd · 1 ba | - | 87 | bedbug | 12.1 | Source |
Open a record to read the full agency text.
No records returned.
OT
WINDSOR PLACE DEVELOPERS INC.
DOB filing 760256A2
LOUIS BUTTERMARK & SONS, INC.
DOB filing 765311MH
WINDSOR PLACE DEVELOPERS INC
DOB filing 892532No records returned.
Recorded consideration. A $0 deed is not a sale price.
Research contract nyc_property_research.v1 · snapshot Nov 6, 2026
This identifier represents an NYC tax lot. Condo and co-op apartment identity must be resolved separately.
NYC Department of City Planning (PLUTO)
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.
StreetEasy, observed by CurbScoop
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.
NYC Department of Finance, Office of the City Register (ACRIS)
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.
NYC Department of Buildings via NYC Open Data
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.
NYC Department of Housing Preservation and Development via NYC Open Data
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.
NYC Department of Buildings via NYC Open Data
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.
Deed amounts are recorded consideration, not asking prices or a unit valuation. A blank record is not proof that an issue does not exist.