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523 WEST 121 STREET is a 24-unit building in Morningside Heights, Manhattan, built in 1926.
2 units are on the market here right now.
City records show 13 DOB permits and 29 violation records on file.
FY2026–27 final assessment roll · Extract 2026-05-15
+6.2% 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.
These values cover the whole tax lot and do not value individual co-op shares.
Official DOF final assessment roll (ZIP) ↗FY2026–27 · DOF statement 2026-08-15 · 523 W. 121ST ST.
The printed annual tax already deducts $33,703.32 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: $4,163,000.00.
Basic Star - School Tax Relief 3 units $807.00 Enhanced Star - School Tax Relief 1 unit $647.00 Co-op/Condo Abatement 21 units $32,249.32
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: $1,711,710.00 times the current tax rate: x 12.4390% minus abatements and/or STAR: – $33,703.32 Annual property tax: $179,216.32
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 |
|---|---|---|
COOP · Published benefit begin dateEvidence{"actabtpcyc": "0.00", "actabtpyr": "0.00", "appliedabt": "32249.31", "appseq": "23", "appstat": "A", "caseno": "3074", "extractdt": "2026-08-15T00:00:00.000", "parid": "1019760013", "period": "2Q", "rate_pct": "0.001750", "taxyr": "2027", "tccode": "COOP", "tcsubcode": "C1", "yearabtpct": "0.000000", "yrbegdt": "1996-07-01T00:00:00.000"} Tax benefit; do not add as a cost Open official source ↗ | 1996-07-01 | As of 2026-08-15 FY2027 2Q Published schedule · exact tax lot |
COOP · Source applied abatementEvidence{"actabtpcyc": "0.00", "actabtpyr": "0.00", "appliedabt": "32249.31", "appseq": "23", "appstat": "A", "caseno": "3074", "extractdt": "2026-08-15T00:00:00.000", "parid": "1019760013", "period": "2Q", "rate_pct": "0.001750", "taxyr": "2027", "tccode": "COOP", "tcsubcode": "C1", "yearabtpct": "0.000000", "yrbegdt": "1996-07-01T00:00:00.000"} Tax benefit; do not add as a cost Open official source ↗ | $32,249.31 | As of 2026-08-15 FY2027 2Q Source reported · exact tax lot |
COOP · source eligibility / application statusEvidence{"actabtpcyc": "0.00", "actabtpyr": "0.00", "appliedabt": "32249.31", "appseq": "23", "appstat": "A", "caseno": "3074", "extractdt": "2026-08-15T00:00:00.000", "parid": "1019760013", "period": "2Q", "rate_pct": "0.001750", "taxyr": "2027", "tccode": "COOP", "tcsubcode": "C1", "yearabtpct": "0.000000", "yrbegdt": "1996-07-01T00:00:00.000"} Tax benefit; do not add as a cost Open official source ↗ | appstat=A | As 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 ↗| 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 periodEvidenceNew charges $44,804.08 Separate dated balance; do not add to annual costs Open official source ↗ | $44,804.08 | As of 2026-08-15 Source reported · exact tax lot |
Statement amount dueEvidenceAmount Due 10/01/26: $44,804.08 Separate dated balance; do not add to annual costs Due date: 2026-10-01 Open official source ↗ | $44,804.08 | As of 2026-08-15 Source reported · exact tax lot |
Department of Finance TotalEvidenceDepartment of Finance Total $44,804.08 May be in statement balance; do not add twice Open official source ↗ | $44,804.08 | As of 2026-08-15 Source reported · exact tax lot |
Source updated 2026-08-15 · collected 2026-10-12.
Open official source ↗| Reported item | Value | Period & scope |
|---|---|---|
LL84 reported location-based emissionsEvidence{"property_id": "33200273", "year_ending": "2024-12-31T00:00:00.000", "nyc_borough_block_and_lot": "1019760013", "number_of_buildings": "1", "metered_areas_energy": "Whole Property", "total_location_based_ghg": "116.67", "property_gfa_self_reported": "28668"} Reported metric; not a fine Open official source ↗ | 116.67 tonnes CO2e | 2024 Historical actual · reported property / campus |
LL84 reported gross floor areaEvidence{"property_id": "33200273", "year_ending": "2024-12-31T00:00:00.000", "nyc_borough_block_and_lot": "1019760013", "number_of_buildings": "1", "metered_areas_energy": "Whole Property", "total_location_based_ghg": "116.67", "property_gfa_self_reported": "28668"} Reported metric; not a fine Open official source ↗ | 28,668 ft² | 2024 Historical actual · reported property / campus |
LL84 reported location-based emissionsEvidence{"property_id": "33200273", "year_ending": "2023-12-31T00:00:00.000", "nyc_borough_block_and_lot": "1019760013", "number_of_buildings": "1", "metered_areas_energy": "Whole Property", "total_location_based_ghg": "115.3", "property_gfa_self_reported": "28668"} Reported metric; not a fine Open official source ↗ | 115.3 tonnes CO2e | 2023 Historical actual · reported property / campus |
LL84 reported gross floor areaEvidence{"property_id": "33200273", "year_ending": "2023-12-31T00:00:00.000", "nyc_borough_block_and_lot": "1019760013", "number_of_buildings": "1", "metered_areas_energy": "Whole Property", "total_location_based_ghg": "115.3", "property_gfa_self_reported": "28668"} Reported metric; not a fine Open official source ↗ | 28,668 ft² | 2023 Historical actual · reported property / campus |
LL84 reported location-based emissionsEvidence{"property_id": "6282893", "year_ending": "2023-12-31T00:00:00.000", "nyc_borough_block_and_lot": "1-01976-0013", "number_of_buildings": "1", "metered_areas_energy": "Whole Property", "total_location_based_ghg": "115.3", "property_gfa_self_reported": "30675"} Reported metric; not a fine Open official source ↗ | 115.3 tonnes CO2e | 2023 Historical actual · reported property / campus |
LL84 reported gross floor areaEvidence{"property_id": "6282893", "year_ending": "2023-12-31T00:00:00.000", "nyc_borough_block_and_lot": "1-01976-0013", "number_of_buildings": "1", "metered_areas_energy": "Whole Property", "total_location_based_ghg": "115.3", "property_gfa_self_reported": "30675"} Reported metric; not a fine Open official source ↗ | 30,675 ft² | 2023 Historical actual · reported property / campus |
LL84 reported location-based emissionsEvidence{"property_id": "6282893", "year_ending": "2022-12-31T00:00:00.000", "nyc_borough_block_and_lot": "1-01976-0013", "number_of_buildings": "1", "metered_areas_energy": "Whole Property", "total_location_based_ghg": "127.2", "property_gfa_self_reported": "30675"} Reported metric; not a fine Open official source ↗ | 127.2 tonnes CO2e | 2022 Historical actual · reported property / campus |
LL84 reported gross floor areaEvidence{"property_id": "6282893", "year_ending": "2022-12-31T00:00:00.000", "nyc_borough_block_and_lot": "1-01976-0013", "number_of_buildings": "1", "metered_areas_energy": "Whole Property", "total_location_based_ghg": "127.2", "property_gfa_self_reported": "30675"} Reported metric; not a fine Open official source ↗ | 30,675 ft² | 2022 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 ↗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 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 523 WEST 121 STREET #2 Manhattan · built 1926 | Morningside Heights | $749K | - | 0 ft² | 2 bd · 1 ba | - | 60 | 2 HPD-C4 DOBbedbug | 8.1 | Source | |
| 523 WEST 121 STREET #22 Manhattan · built 1926 | Morningside Heights | $445K | $524 | 850 ft² | 2 bd · 1 ba | - | 31 | 2 HPD-C4 DOBbedbug | 8.1 | Source |
Open a record to read the full agency text.
(A) § HMC:FILE ANNUAL BEDBUG REPORT IN ACCORDANCE WITH HPD RULE AS DESCRIBED ON THE BACK OF THIS NOTICE OF VIOLATION OR AS DESCRIBED ON HPDS WEBSITE, WWW.NYC.GOV\HPD, SEARCH BED BUGS.
HPD record 18833125(A) § HMC:FILE ANNUAL BEDBUG REPORT IN ACCORDANCE WITH HPD RULE AS DESCRIBED ON THE BACK OF THIS NOTICE OF VIOLATION OR AS DESCRIBED ON HPDS WEBSITE, WWW.NYC.GOV\HPD, SEARCH BED BUGS.
HPD record 15794421(A) § HMC:FILE ANNUAL BEDBUG REPORT IN ACCORDANCE WITH HPD RULE AS DESCRIBED ON THE BACK OF THIS NOTICE OF VIOLATION OR AS DESCRIBED ON HPDS WEBSITE, WWW.NYC.GOV\HPD, SEARCH BED BUGS.
HPD record 14854781(A) § HMC:FILE ANNUAL BEDBUG REPORT IN ACCORDANCE WITH HPD RULE AS DESCRIBED ON THE BACK OF THIS NOTICE OF VIOLATION OR AS DESCRIBED ON HPDS WEBSITE, WWW.NYC.GOV\HPD, SEARCH BED BUGS.
HPD record 14118698§ 27-2033 ADM CODE POST NOTICE, IN FORM APPROVED BY THE DEPARTMENT, STATING THE NAME AND LOCATION OF THE PERSON DESIGNATED BY THE OWNER TO HAVE KEY TO BUILDINGS HEATING SYSTEM MISSING AT PUBLIC HALL, 1st STORY
HPD record 12607598§ 12 M/D LAW DISCONTINUE THE STORAGE OF COMBUSTIBLE MATERIAL CONSISTING WOOD DOORS SOUTHEAST BASEMENT.
HPD record 3046852D26-10.01, 10.05 ADM CODE ARRANGE AND MAKE SELF-CLOSING THE DOORS ENTRANCE BASEMENT APT 1B. , SECTION '' ''
HPD record 3046853D26-17.10 ADM CODE POST NOTICE, IN FORM APPROVED BY THE DEPARTMENT, STATING THE NAME AND LOCATION OF THE PERSON DESIGNATED BY THE OWNER TO HAVE KEY TO BUILDING'S HEATING SYSTEM 1ST STY PUBLIC HALL NEAR MAILBOXES AND DOOR TOBOILER ROOM.
HPD record 3046847D26-10.01 ADM CODE PROPERLY REPAIR THE BROKEN OR DEFECTIVE PAVING EAST COURT AND FRONT EAST FIRE PASSAGEWAY.
HPD record 3046855§ 53, 187, 231 M/D LAW AND DEPARTMENT RULES AND REGULATIONS. PROVIDE A SHOE PROPERLY SECURED TO BOTTOM OF STRING OF DROPLADDER REAR FIRE ESCAPE.
HPD record 3046856D26-10.01, 10.05 ADM CODE FIRE EGRESS DEFECTIVE. REMOVE THE OBSTRUCTION IN FIREPROOF PASSAGEWAY REAR EAST AND REAR WEST FIRE PASSAGEWAYS.
HPD record 3046854D26-11.01, 11.03, 11.05 ADM CODE REMOVE THE ACCUMULATION OF REFUSE AND/OR RUBBISH AND MAINTAIN IN A CLEAN CONDITION THE FIRE PASSAGEWAYS.
HPD record 3046848D26-10.01, 10.05 ADM CODE FIRE EGRESS DEFECTIVE. RESTORE EGRESS BY REMOVING LOCKING DEVICE AND ARRANGE TO OPEN READILY THE GATE IN FENCE AT LOT LINE FRONT.
HPD record 3046849D26-10.01 ADM CODE PROPERLY REPAIR THE BROKEN OR DEFECTIVE PAVING COURT YARD FRONT.
HPD record 3046850D26-10.01 ADM CODE PROPERLY REPAIR WITH SIMILAR MATERIAL THE BROKEN OR DEFECTIVE CONCRETE RETAINING WALL AT FRONT FIRE PASSAGEWAY.
HPD record 3046851OT
6TH AVENUE CONSTRUCTION &
DOB filing 3500390A2
WASOFF PLBG & UTILITIES
DOB filing 1129018OT
LIMITLESS RENOVATIONS LLC
DOB filing 3345883OT
WILMAN CUSTOM DESIGN
DOB filing 2030102BL
UNFLAT & ASSOCIATES
DOB filing 1396742FB
UNFLAT & ASSOCIATES
DOB filing 1396746A2
UNFLAT & ASSOCIATES
DOB filing 1396755A2
ARK-POL PLUMBING CORP
DOB filing 3361223OT
PALK HOLTZER CPMSTRUCTION LLC
DOB filing 1902703A2
PILATO BROTHERS PLG & HTG
DOB filing 1428298SH
BILLY ENTERPRISES INC
DOB filing 3420073OT
REINA CONTRACTING
DOB filing 1073421SF
CS BRIDGE CORP
DOB filing 2479922Agency description not supplied.
DOB record 2415919VIO ISSUED TO ELEVATOR - FAIL TO CORRECT DEFECTS ON 2014 CAT 1 INSP/TST
DOB record 2097749VIOLATION ISSUED TO ELEVATOR-FAILURE TO FILE CATEGORY 1 2013 INSPECTION/TEST
DOB record 1915693VIOLATION ISSUED TO ELEVATOR-FAILURE TO FILE CATEGORY 1 2012 INSPECTION/TEST
DOB record 1833230Agency description not supplied.
DOB record 1809959Agency description not supplied.
DOB record 1925414Agency description not supplied.
DOB record 1556068Agency description not supplied.
DOB record 1493966Agency description not supplied.
DOB record 1330705Agency description not supplied.
DOB record 1030941Agency description not supplied.
DOB record 450882Agency description not supplied.
DOB record 446263Agency description not supplied.
DOB record 34221031 REMOVE WIRING IN SHAFT AN MOTOR ROOM 15 PROPERLY SEAL HOISTWAY SWING DOORS OR PROVIDE INTERLOCK 35 PROVIDE STEPS TO OVERHEAD 35 REPLACE MISWSING GRATING IN OVERHEAD
DOB record 111433Recorded consideration. A $0 deed is not a sale price.
Research contract nyc_property_research.v1 · snapshot Oct 27, 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 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.
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 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.
NYC Department of Buildings via NYC Open Data
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.
NYC Department of Housing Preservation and Development via NYC Open Data
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.
NYC Department of Buildings via NYC Open Data
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.
Deed amounts are recorded consideration, not asking prices or a unit valuation. A blank record is not proof that an issue does not exist.