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Manhattan • Elevator Apartment

527 West 121 St

Manhattan, NY 10027Company-ownedBBL 1019760010BIN 1059651
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Updated Aug 1, 2026 · 16 sources

Year Built1926
Floors6
Units24
Building Area28,668 sqft
ZoningR8
ClassD1
Market Value$2.5M

527 WEST 121 ST is a property located at 527 WEST 121 ST, Manhattan, NY 10027. It is classified as a elevator apartment - semi-fireproof. The building was constructed in 1926. It has 6 floors and 24 units. The building area is 28,668 square feet on a 6,728 sqft lot. The property is zoned R8. The assessed market value is $2.5M. Public records list the property as company-owned. There are 78 building permits on record (53 active). There are 42 violations on record (15 currently open). 9 docketed judgments are on record with OATH. Data sourced from NYC Department of Buildings (DOB), Housing Preservation & Development (HPD), Department of Finance (DOF), and other government agencies.

A RegWatch Dossier

231records on file
100Energy Star

Completed in 1926, 527 West 121 St rises 6 stories over New York. Public records put it at 24 units and 28,668 square feet of floor area, on land zoned R8. It is carried on the public rolls at a market value of $2.5M, and assessed for tax at $1.1M. In the 46 years its record reaches back, the lot has drawn 231 separate government filings.

The documentary life of the address leans hard toward permit: 78 of its 231 records, fully 34%, fall under that one heading. Inspection (49) and violation (42) trail well behind. 15 violations stand open against it today.

The pace is anything but even. The early decades pass in near silence; the filings cluster heavily in recent years, peaking in 2024.

On the environmental ledger, the building posts an Energy Star score of 100, with a site energy-use intensity of 18.8 kBtu per square foot. Its operations answer for roughly 31 metric tons of CO2-equivalent a year.

Read together — 34% permit, 46 years of accumulation, a parcel of New York — these scattered records compose a portrait of the address that no single page sets out to draw.

$2.5M of New York, written across 231 government filings.

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Sources
NYC DOBNYC HPDNYC DOFACRISNYC DCPECB/OATHNYC DEPNYC LPCNYC FDNYNYS DHCRMOCEJFEMAEPAUS CensusHUDUSGS
updated

Property Details

Address527 WEST 121 ST, Manhattan, NY 10027
Building TypeElevator Apartment - Semi-Fireproof
D1
Year Built1926
Floors6
Total Units24
Building Area28,668 sqft
Lot Size6,728 sqft
ZoningR8
ConditionAverage
1019760010
1059651
OwnershipCompany-owned

Assessment & Sales

$2.5M
$1.1M
$109K

Building Permits

78 on record · 53 active
General ConstructionDOB NOW
LOC ISSUED
Filed Sep 3, 2025Job #M01104226-I1
View this permit's full record & inspection history →
General ConstructionDOB NOW
LOC ISSUED
Filed Jun 27, 2025Est. cost $223KJob #M01095182-I1
View this permit's full record & inspection history →
General ConstructionDOB NOW
LOC ISSUED
Filed Jun 4, 2025Est. cost $1KJob #M01107738-I1
View this permit's full record & inspection history →
StructuralDOB NOW
SIGNED-OFF
Filed Oct 21, 2024Est. cost $223KJob #M01095182-I1

Initial Permit

View this permit's full record & inspection history →
Cats RegistrationOther
CURRENT
Filed Sep 18, 2024Job #439733
View this permit's full record & inspection history →

+ 73 more permits — view full report

Violations

42 on record · 15 open
Judgments · 9 docketed
DOB summons (OATH)JUDGMENT DOCKETED
Docketed Jun 30, 2023Ticket #037025160K
FAIL SUBMIT REQUIRED REPORT OF CRIT EXAM DOCUMENTING EXTERIOR WALL
DOB summons (OATH)JUDGMENT DOCKETED
Docketed Feb 28, 2017Ticket #032077373R
FAIL MAINTAIN BLDG IN COMPLIANT MANNER: SERVICE EQUIPMENT - BOILER
DEP summons (OATH)JUDGMENT DOCKETED
Docketed Aug 31, 2017Ticket #0189364001
FAILED TO INSTALL A BACKFLOW PREVENTER
Sanitation summons (OATH)JUDGMENT DOCKETED
Docketed Sep 19, 2013Ticket #042372546K
NON-RECYCLABLES IN RECYC. CONTAINER FOR COLLECTION 9+ DWELLING UNITS
Sanitation summons (OATH)JUDGMENT DOCKETED
Docketed Jul 18, 2012Ticket #040259357Y
STORAGE OF RECEPTACLES

+ 4 more docketed judgments — view full report

DOB LegacyLBLVIO
ACTIVE
Issued Jun 20, 2023#2647816

VIOLATION ISSUED-FAILURE TO FILE 2018 EXTERNAL LOW PRESSURE INSPECTION

View this violation's full details & status history →
DOB LegacyLBLVIO
ACTIVE
Issued Jun 20, 2023#2669311

VIOLATION ISSUED-FAILURE TO FILE 2019 EXTERNAL LOW PRESSURE INSPECTION

View this violation's full details & status history →
DOB LegacyLBLVIO
ACTIVE
Issued Nov 8, 2019#2406428

VIOLATION ISSUED FOR FAILURE TO FILE ANNUAL BOILER 2017 INSPECTION REPORT

View this violation's full details & status history →
HPDClass B
CERTIFICATION POSTPONMENT DENIED
Issued Oct 11, 2017#12014196

§ 27-2005 ADM CODE PROPERLY REPAIR WITH SIMILAR MATERIAL THE BROKEN OR DEFECTIVE VINYL FLOOR TILES IN THE KITCHEN LOCATED AT APT 63, 6th STORY

View this violation's full details & status history →
HPDClass B
CERTIFICATION POSTPONMENT DENIED
Issued Oct 11, 2017#12014181

§ 27-2005 ADM CODE REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN A UNIFORM COLOR AT CEILING IN THE FOYER LOCATED AT APT 63, 6th STORY, 1st APARTMENT FROM EAST AT SOUTH

View this violation's full details & status history →

+ 37 more violations on record — view full report

Get the Complete Report for 527 WEST 121 ST

Title history, detailed tax records, environmental data, zoning analysis, and more from 250+ government sources.

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Frequently Asked Questions

When was 527 WEST 121 ST, Manhattan built?

The building at 527 WEST 121 ST, Manhattan, NY 10027 was constructed in 1926. It is classified as a elevator apartment - semi-fireproof with 6 floors and 24 units. The building area is 28,668 sqft.

Are there building permits at 527 WEST 121 ST, Manhattan?

Yes. 527 WEST 121 ST, Manhattan, NY 10027 has 78 building permits on record, with 53 currently active. Permits are sourced from the NYC Department of Buildings (DOB Legacy and DOB NOW systems). The most recent permit is a General Construction (LOC ISSUED) filed Sep 3, 2025.

Does 527 WEST 121 ST, Manhattan have violations?

Yes. 527 WEST 121 ST, Manhattan, NY 10027 has 42 violations on record, with 15 currently open. Breakdown: 19 DOB, 8 ECB, 15 HPD. Sources: NYC DOB, HPD, and ECB/OATH.

Does 527 WEST 121 ST, Manhattan have docketed judgments?

Yes. 527 WEST 121 ST, Manhattan, NY 10027 has 9 docketed judgments on record with the NYC Office of Administrative Trials & Hearings (OATH). A docketed judgment is an enforceable money judgment entered by OATH after a hearing on a summons issued at this property; where the respondent is the property owner it can attach to the property as a lien.

What is the property tax assessment for 527 WEST 121 ST?

527 WEST 121 ST, Manhattan, NY 10027 has an assessed market value of $2.5M and a total assessed value of $1.1M (land: $109K). Assessment data is from the NYC Department of Finance (DOF).

What is the zoning for 527 WEST 121 ST?

527 WEST 121 ST, Manhattan, NY 10027 is zoned R8. Zoning data is from the NYC Department of City Planning (DCP). For detailed FAR, overlays, and development rights, view the full property report on RegWatch.

Who owns 527 WEST 121 ST?

527 WEST 121 ST, Manhattan, NY 10027 is company-owned according to public records. Ownership data is from NYC Department of Finance assessment rolls. View the current owner of record and registered contacts in the full property report on RegWatch.

How do I get a full property report for 527 WEST 121 ST?

Search 527 WEST 121 ST on RegWatch to see its public record free — violations, permits, tax records, zoning, environmental data, and more from 250+ government sources, no credit card required. A Full Analysis report adds the complete title history, owner contacts, and a downloadable PDF.

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527 WEST 121 ST, Manhattan, NY 10027 — Property Records, Permits, Violations, Tax & Zoning | RegWatch