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520 WEST 23 STREET

Manhattan· West Chelsea· built 2003class D4BBL 1006940042
Open listing source

Your first look at this property

A free brief from the records below. Start here, then check the evidence.

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What the records show

Risks & missing evidence

Building overview

520 WEST 23 STREET is a 107-unit building in West Chelsea, Manhattan, built in 2003.

9 units are on the market here right now.

City records show 30 DOB permits and 27 violation records on file.

Units (res)
107
Floors
15.0
Lot ft²
12,125 ft²
Bldg ft²
95,656 ft²
Assessed
$18.1M
DOF FY2027 final roll
Deeds on this lot · 5 years
Unavailable
Excludes nearby comparable buildings

Official taxes & valuations

$40,247,000.00 · DOF market valueWhole tax lot · BBL 1006940042

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

+16.0% change in DOF market value from the prior year.

Land value
$1,200,000.00
Building/improvement value
$39,047,000.00
Actual assessed value
$18,111,150.00
Assessed land
$540,000.00
Transitional assessed value
$15,534,260.00
Actual assessed-value exemptions
$13,280.00
Billable assessment before exemptions
$15,534,260.00
Billable assessed-value exemptions
$13,280.00
Taxable assessment after exemptions
$15,520,980.00
FY2025–26 DOF market value
$34,707,000.00
Prior-year actual assessed value
$15,618,150.00
Prior-year taxable assessment
$14,593,329.00

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) ↗
$1,708,147.28/yr · $142,345.61/mo equivalentWhole tax lot · BBL 1006940042

FY2026–27 · DOF statement 2026-08-15 · 520 W. 23RD ST.

The printed annual tax already deducts $224,159.32 in abatements and/or STAR.

Billable assessment on this statement
$15,534,260.00
Tax rate on this statement
12.4390%
Annual tax before abatements/STAR
$1,932,306.60
Monthly equivalent before abatements/STAR
$161,025.55

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: $40,247,000.00.

Named benefits on the statement
Basic Star - School Tax Relief 3 units $807.00
Enhanced Star - School Tax Relief 1 unit $647.00
Co-op/Condo Abatement 67 units $222,705.32

This covers the whole tax lot. Co-op building taxes cannot be added to an apartment’s maintenance or divided among its units.

Read official DOF tax bill ↗
How we calculate your annual taxes:
Billable assessed value: $15,534,260.00
times the current tax rate: x 12.4390%
minus abatements and/or STAR: – $224,159.32
Annual property tax: $1,708,147.28

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 published abatements & termsTax lot 1006940042

Tax benefits & expiration

Reported itemValuePeriod & scope
COOP · Published benefit begin date
Evidence

{"actabtpcyc": "0.00", "actabtpyr": "0.00", "appliedabt": "222705.32", "appseq": "5", "appstat": "A", "caseno": "3698", "extractdt": "2026-08-15T00:00:00.000", "parid": "1006940042", "period": "2Q", "rate_pct": "0.001750", "taxyr": "2027", "tccode": "COOP", "tcsubcode": "C1", "yearabtpct": "0.000000", "yrbegdt": "2014-07-01T00:00:00.000"}

Tax benefit; do not add as a cost

Open official source ↗
2014-07-01As of 2026-08-15
FY2027 2Q
Published schedule · exact tax lot
COOP · Source applied abatement
Evidence

{"actabtpcyc": "0.00", "actabtpyr": "0.00", "appliedabt": "222705.32", "appseq": "5", "appstat": "A", "caseno": "3698", "extractdt": "2026-08-15T00:00:00.000", "parid": "1006940042", "period": "2Q", "rate_pct": "0.001750", "taxyr": "2027", "tccode": "COOP", "tcsubcode": "C1", "yearabtpct": "0.000000", "yrbegdt": "2014-07-01T00:00:00.000"}

Tax benefit; do not add as a cost

Open official source ↗
$222,705.32As of 2026-08-15
FY2027 2Q
Source reported · exact tax lot
COOP · source eligibility / application status
Evidence

{"actabtpcyc": "0.00", "actabtpyr": "0.00", "appliedabt": "222705.32", "appseq": "5", "appstat": "A", "caseno": "3698", "extractdt": "2026-08-15T00:00:00.000", "parid": "1006940042", "period": "2Q", "rate_pct": "0.001750", "taxyr": "2027", "tccode": "COOP", "tcsubcode": "C1", "yearabtpct": "0.000000", "yrbegdt": "2014-07-01T00:00:00.000"}

Tax benefit; do not add as a cost

Open official source ↗
appstat=AAs of 2026-08-15
FY2027 2Q
Source reported · exact tax lot

FY2027 2Q source abatement terms, dated 2026-08-15. Dates and amounts do not guarantee eligibility after purchase. Per-cycle amounts are not annualized; overlapping calculations are not summed.

Published benefit amounts and dates do not guarantee eligibility after a purchase. An end date alone does not establish the future tax bill; assessment, tax rate and other benefits may change.

Source updated 2026-10-05 · collected 2026-10-09.

Open official source ↗
DOF statement balancesTax lot 1006940042

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 $427,036.82

Separate dated balance; do not add to annual costs

Open official source ↗
$427,036.82As of 2026-08-15
Source reported · exact tax lot
Statement amount due
Evidence

Amount Due 10/01/26: $427,036.82

Separate dated balance; do not add to annual costs

Due date: 2026-10-01

Open official source ↗
$427,036.82As of 2026-08-15
Source reported · exact tax lot
Department of Finance Total
Evidence

Department of Finance Total $427,036.82

May be in statement balance; do not add twice

Open official source ↗
$427,036.82As of 2026-08-15
Source reported · exact tax lot

Source updated 2026-08-15 · collected 2026-10-12.

Open official source ↗
DOB energy disclosureTax lot 1006940042

Penalties, energy & capital work

Reported itemValuePeriod & scope
LL84 reported location-based emissions
Evidence

{"property_id": "4950979", "year_ending": "2024-12-31T00:00:00.000", "nyc_borough_block_and_lot": "1006940042", "number_of_buildings": "1", "metered_areas_energy": "Whole Property", "total_location_based_ghg": "447.83", "property_gfa_self_reported": "97568"}

Reported metric; not a fine

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

{"property_id": "4950979", "year_ending": "2024-12-31T00:00:00.000", "nyc_borough_block_and_lot": "1006940042", "number_of_buildings": "1", "metered_areas_energy": "Whole Property", "total_location_based_ghg": "447.83", "property_gfa_self_reported": "97568"}

Reported metric; not a fine

Open official source ↗
97,568 ft²2024
Historical actual · reported property / campus
LL84 reported location-based emissions
Evidence

{"property_id": "4950979", "year_ending": "2023-12-31T00:00:00.000", "nyc_borough_block_and_lot": "1006940042", "number_of_buildings": "1", "metered_areas_energy": "Whole Property", "total_location_based_ghg": "420.4", "property_gfa_self_reported": "102033"}

Reported metric; not a fine

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

{"property_id": "4950979", "year_ending": "2023-12-31T00:00:00.000", "nyc_borough_block_and_lot": "1006940042", "number_of_buildings": "1", "metered_areas_energy": "Whole Property", "total_location_based_ghg": "420.4", "property_gfa_self_reported": "102033"}

Reported metric; not a fine

Open official source ↗
102,033 ft²2023
Historical actual · reported property / campus
LL84 reported location-based emissions
Evidence

{"property_id": "4950979", "year_ending": "2022-12-31T00:00:00.000", "nyc_borough_block_and_lot": "1-00694-0042", "number_of_buildings": "1", "metered_areas_energy": "Whole Property", "total_location_based_ghg": "385.8", "property_gfa_self_reported": "102033"}

Reported metric; not a fine

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

{"property_id": "4950979", "year_ending": "2022-12-31T00:00:00.000", "nyc_borough_block_and_lot": "1-00694-0042", "number_of_buildings": "1", "metered_areas_energy": "Whole Property", "total_location_based_ghg": "385.8", "property_gfa_self_reported": "102033"}

Reported metric; not a fine

Open official source ↗
102,033 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 1006940042

Penalties, energy & capital work

Reported itemValuePeriod & scope
Declared construction estimate · M00682006-I1-SH#1
Evidence

installation of heavy duty sidewalk shed. no change in use, occupancy or egress. work shall comply with chapter 33 of nycc.

Estimate; not an apartment assessment

Open official source ↗
$1.00As of 2022-02-18
Declared estimate · exact tax lot
Declared construction estimate · M00459672-I1-GC#1
Evidence

Filing for facade repairs as per plans filed herewith. No change to use, occupancy or egress.

Estimate; not an apartment assessment

Open official source ↗
$374,833.00As of 2022-01-06
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 (9)

AddressNeighborhoodPrice$/ft²SqftBeds/Bathsvs compDOMRiskScore
520 WEST 23 STREET #11/E
Manhattan · built 2003
West Chelsea$949K-0 ft²1 bd · 1 ba-21
2 HPD-C2 DOBbedbug
10.0Source
520 WEST 23 STREET #14D
Manhattan · built 2003
West Chelsea$549K-0 ft²studio · 1 ba-276
2 HPD-C2 DOBbedbug
10.0Source
520 WEST 23 STREET #8A
Manhattan · built 2003
West Chelsea$999K$1,498667 ft²1 bd · 1 ba-127
2 HPD-C2 DOBbedbug
10.0Source
520 WEST 23 STREET #11D
Manhattan · built 2003
West Chelsea$600K-0 ft²studio · 1 ba-11
2 HPD-C2 DOBbedbug
10.0Source
520 WEST 23 STREET #14D
Manhattan · built 2003
West Chelsea$649K-0 ft²studio · 1 ba-196
2 HPD-C2 DOBbedbug
10.0Source
520 WEST 23 STREET #11E
Manhattan · built 2003
West Chelsea$975K-0 ft²1 bd · 1 ba-110
2 HPD-C2 DOBbedbug
10.0Source
520 WEST 23 STREET #8A
Manhattan · built 2003
West Chelsea$999K$1,498667 ft²1 bd · 1 ba-99
2 HPD-C2 DOBbedbug
10.0Source
520 WEST 23 STREET #6C
Manhattan · built 2003
West Chelsea$1.17M-0 ft²2 bd · 2 ba-163
2 HPD-C2 DOBbedbug
10.0Source
520 WEST 23 STREET #14A
Manhattan · built 2003
West Chelsea$660K-0 ft²studio · 1 ba-178
2 HPD-C2 DOBbedbug
10.0Source

Building activity

Open a record to read the full agency text.

Housing violations (HPD) 2

Housing violationClass CJul 1, 2024Violation closed

§ 27-2005, 2007 ADM CODE REMOVE DEVICE PREVENTING DOOR FROM BEING SELF-CLOSING KICK DOWN DOOR STOPPER AT SOUTH FIRE DOOR AT PUBLIC HALL, 1st STORY

HPD record 17086898
Housing violationClass CJul 1, 2024Violation closed

§ 27-2005, 2007 ADM CODE REMOVE DEVICE PREVENTING DOOR FROM BEING SELF-CLOSING KICK DOWN STOPPER AT DOOR AT LAUNDRY ROOM, 1st STORY

HPD record 17086899

Work permits (DOB) 30

Sidewalk ShedFeb 18, 2022Signed-off

installation of heavy duty sidewalk shed. no change in use, occupancy or egress. work shall comply with chapter 33 of nycc.

J & G CONSTRUCTION SVCS

Issued Feb 18, 2022

DOB filing M00682006-I1-SH#1
General ConstructionJan 6, 2022Signed-off

Filing for facade repairs as per plans filed herewith. No change to use, occupancy or egress.

CASTCAPA CONSTRUCTION LLC

Issued Mar 4, 2022

DOB filing M00459672-I1-GC#1
PLOct 14, 2003Issued

A2

CRU MECH. HEAT. INC.

Issued Oct 14, 2003

DOB filing 634244
Show 27 more records
OTJul 31, 2003Issued

A3

UNITECH DESIGN INC D.B.A SPACE S

Issued Jul 31, 2003

DOB filing 106721
SPJan 18, 2002Issued

SP

MEDCO PLUMBING INC.

Issued Jan 18, 2002

DOB filing 1192824
OTFiling date not suppliedIssued

OT

STACO SYSTEM INC

DOB filing 235788
OTFiling date not suppliedIssued

OT

SKYLINE RESTORATION INC

DOB filing 3525823
OTFiling date not suppliedIssued

OT

CHAOS BUILT LLC

DOB filing 3528818
OTFiling date not suppliedIssued

OT

SKYLINE RESTORATION INC

DOB filing 3325928
MHFiling date not suppliedIssued

MH

METROPOLITAN MECHANICAL C

DOB filing 3126062
OTFiling date not suppliedIssued

OT

SKYLINE RESTORATION INC

DOB filing 3332097
EQFiling date not suppliedIssued

SH

PHOENIX SUTTON STR INC

DOB filing 3339635
SPFiling date not suppliedIssued

SP

MEDCO PLBG INC

DOB filing 517168
OTFiling date not suppliedIssued

OT

ROYAL K SUPPLY&WAREHOUSE

DOB filing 3353860
EQFiling date not suppliedIssued

SH

REGIONAL SCAFFOLD AND HOISTING

DOB filing 1259498
BLFiling date not suppliedIssued

BL

MEDCO PLUMBING INC

DOB filing 1464583
EQFiling date not suppliedIssued

OT

REGIONAL SCAFF. HOIST CO

DOB filing 1422354
MHFiling date not suppliedIssued

MH

BRADY CONSTRUCTION INC

DOB filing 3569926
OTFiling date not suppliedIssued

OT

BRADY CONSTRUCTION INC

DOB filing 3569928
NBFiling date not suppliedRe-issued

NB

MONADNOCK CONSTR. INC

DOB filing 1406971
EQFiling date not suppliedIssued

FN

MONADNOCK CONSTRUCTION, INC.

DOB filing 1407918
SPFiling date not suppliedIssued

SP

MEDCO PLBG INC

DOB filing 1645112
PLFiling date not suppliedIssued

A2

SMART PLBG & HTG CORP

DOB filing 3578533
PLFiling date not suppliedIssued

A2

JAG PLBG & MECH INC

DOB filing 3579784
SPFiling date not suppliedIssued

SP

RIGHTWAY PLBG & HTG INC

DOB filing 3579787
EQFiling date not suppliedIssued

SF

EAGLE SCAFFOLDING CO INC

DOB filing 1531753
PLFiling date not suppliedIssued

A2

B.K. PLBG. & HTG. CORP

DOB filing 3386030
OTFiling date not suppliedIssued

OT

BRADY CONSTRUCTION INC

DOB filing 3595973
MHFiling date not suppliedIssued

MH

BRADY CONSTRUCTION INC

DOB filing 3595975
OTFiling date not suppliedIssued

A3

UNITECH DESIGN INC D.B.A SPACE S

DOB filing 143266

Latest 30 records shown.

Building violations (DOB) 25

FISPHAZ-HAZARDOUS CONDITION (FACADE) FACADE REQUIREDFeb 17, 2022Disposition recorded Dec 9, 2022

CYCLE 9A UNSAFE REPORT FILED

DOB record 2574825
FISPFCS-FAILURE TO CORRECT SWARMP CONDITIONS (FACADE) FACADE REQUIREDFeb 17, 2022Disposition recorded Dec 9, 2022

CYCLE 9A FAILURE TO CORRECT SWARMP CONDITIONS

DOB record 2578224
E-ELEVATOR ELEVATORREQUIREDJan 10, 2019Disposition recorded Jun 4, 2024

Agency description not supplied.

DOB record 1644306
Show 22 more records
E-ELEVATOR ELEVATORREQUIREDJan 10, 2019Disposition recorded Jun 4, 2024

Agency description not supplied.

DOB record 1644375
E-ELEVATOR ELEVATORREQUIREDJan 10, 2018Disposition recorded Dec 16, 2022

Agency description not supplied.

DOB record 2229760
E-ELEVATOR ELEVATORREQUIREDJan 10, 2018Disposition recorded Dec 16, 2022

Agency description not supplied.

DOB record 2229761
AEUHAZ1-FAIL TO CERTIFY CLASS 1 NONEApr 19, 2017Disposition recorded Nov 14, 2022

Agency description not supplied.

DOB record 2172860
FISP-FACADE SAFETY PROGRAM FACADE REQUIREDFeb 14, 2017Disposition recorded Dec 9, 2022

Agency description not supplied.

DOB record 2164351
E-ELEVATOR ELEVATORREQUIREDJan 16, 2017Disposition recorded Apr 24, 2017

Agency description not supplied.

DOB record 2139847
E-ELEVATOR ELEVATORREQUIREDJan 16, 2017Disposition recorded Apr 24, 2017

Agency description not supplied.

DOB record 2139846
E-ELEVATOR ELEVATORREQUIREDJan 11, 2016Disposition recorded Apr 12, 2016

Agency description not supplied.

DOB record 2035104
E-ELEVATOR ELEVATORREQUIREDJan 11, 2016Disposition recorded Apr 12, 2016

Agency description not supplied.

DOB record 2035102
E-ELEVATOR ELEVATORREQUIREDMay 24, 2011Disposition recorded Jul 31, 2013

Agency description not supplied.

DOB record 1789582
E-ELEVATOR ELEVATORREQUIREDMay 24, 2011Disposition recorded Jul 31, 2013

Agency description not supplied.

DOB record 1580142
E-ELEVATOR ELEVATORREQUIREDJun 5, 2009Disposition recorded May 25, 2010

Agency description not supplied.

DOB record 1420247
E-ELEVATOR ELEVATORREQUIREDJun 5, 2009Disposition recorded May 25, 2010

Agency description not supplied.

DOB record 1420233
E-ELEVATOR ELEVATORREQUIREDJun 5, 2009No disposition date supplied

Agency description not supplied.

DOB record 1419224
E-ELEVATOR ELEVATORREQUIREDJun 5, 2009No disposition date supplied

Agency description not supplied.

DOB record 1419223
E-ELEVATOR ELEVATORREQUIREDMay 6, 2008Disposition recorded May 25, 2010

Agency description not supplied.

DOB record 1506877
E-ELEVATOR ELEVATORREQUIREDMay 6, 2008Disposition recorded May 25, 2010

Agency description not supplied.

DOB record 1321721
E-ELEVATOR ELEVATORREQUIREDJun 27, 2007Disposition recorded May 25, 2010

Agency description not supplied.

DOB record 1225957
E-ELEVATOR ELEVATORREQUIREDJun 27, 2007Disposition recorded May 25, 2010

Agency description not supplied.

DOB record 1225956
E-ELEVATOR ELEVATORREQUIREDDec 13, 2005Disposition recorded Feb 6, 2006

Agency description not supplied.

DOB record 1092254
E-ELEVATOR ELEVATORREQUIREDDec 13, 2005Disposition recorded Feb 7, 2006

Agency description not supplied.

DOB record 1092255
C-CONSTRUCTION OTHER OPTIONALFeb 14, 2004Disposition recorded Mar 3, 2004

Agency description not supplied.

DOB record 146019
Transaction history · 0 deeds

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

No recorded transactions for this BBL yet.

More buildings in West Chelsea

Sources, coverage & freshness

Sources & freshness

Research contract nyc_property_research.v1 · snapshot Oct 27, 2026

Stable property ID: nyc:bbl:1006940042

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 Oct 25, 2026

Pipeline completed Oct 25, 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
9 active sale listings in the current corpus · latest record Aug 13, 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 Oct 27, 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
54 permits in the current corpus · latest record Mar 4, 2022

Pipeline completed Oct 27, 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
2 violations in the current corpus · latest record Jul 26, 2024

Pipeline completed Oct 27, 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
25 violations in the current corpus · latest record Jun 4, 2024

Pipeline completed Oct 27, 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