Skip to content

Manhattan • Condo

521 West 42 St

Manhattan, NY 10036BBL 1010717503BIN 1087676
Save buildingView report

Updated Aug 1, 2026 · 16 sources

Year Built2005
Floors19
Units73
Building Area94,132 sqft
ZoningC6-4
ClassRM
Market Value$1.6M

521 WEST 42 ST is a property located at 521 WEST 42 ST, Manhattan, NY 10036. It is classified as a condo - multi-dwelling. The building was constructed in 2005. It has 19 floors and 73 units. The building area is 94,132 square feet on a 7,540 sqft lot. The property is zoned C6-4. The assessed market value is $1.6M. It last sold for $1.3M on Sep 28, 2018. There are 64 building permits on record (51 active). There are 404 violations on record (76 currently open). 22 docketed judgments carrying $4,837 in open balances 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

1,786records on file
72Energy Star

Completed in 2005, 521 West 42 St rises 19 stories over New York. Public records put it at 73 units and 94,132 square feet of floor area, on land zoned C6-4. It is carried on the public rolls at a market value of $1.6M, and assessed for tax at $741K. In the 38 years its record reaches back, the lot has drawn 1,786 separate government filings — a paper trail nearly as tall as the building itself.

The documentary life of the address leans hard toward complaint: 1,047 of its 1,786 records, fully 59%, fall under that one heading. Violation (404) and inspection (123) trail well behind. 76 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 2023.

On the environmental ledger, the building posts an Energy Star score of 72, with a site energy-use intensity of 56.1 kBtu per square foot. Its operations answer for roughly 388 metric tons of CO2-equivalent a year.

Read together — 59% complaint, 38 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.

$1.6M of New York, written across 1,786 government filings.

Open the live report — daily-updated data, AI chat & alerts
Sources
NYC DOBNYC HPDNYC DOFACRISNYC DCPECB/OATHNYC DEPNYC LPCNYC FDNYNYS DHCRMOCEJFEMAEPAUS CensusHUDUSGS
updated

Property Details

Address521 WEST 42 ST, Manhattan, NY 10036
Building TypeCondo - Multi-Dwelling
RM
Year Built2005
Floors19
Total Units73
Building Area94,132 sqft
Lot Size7,540 sqft
ZoningC6-4
ConditionGood
1010717503
1087676

Assessment & Sales

$1.6M
$741K
$6K
$1.3M
Last Sale DateSep 28, 2018

Building Permits

64 on record · 51 active
Cats RegistrationOther
CURRENT
Filed Jun 3, 2025Job #463678
View this permit's full record & inspection history →
Cats RegistrationOther
CURRENT
Filed Jun 3, 2025Job #463679
View this permit's full record & inspection history →
General ConstructionDOB NOW
PERMIT ENTIRE
Filed Jun 1, 2021Est. cost $8KJob #M00094943-I1
View this permit's full record & inspection history →
Alteration — Type 3DOB Legacy
PERMIT ISSUED - ENTIRE JOB/WORK
Filed Feb 11, 2020Est. cost $5KJob #140813760-01

GEN. CONSTR.

View this permit's full record & inspection history →
AlterationDOB Legacy
ISSUED
Filed Feb 11, 2020Job #140813760-01-02

OT

View this permit's full record & inspection history →

+ 59 more permits — view full report

Violations

404 on record · 76 open
Open judgment balance — docketed OATH judgments$4,837
Judgments · 22 docketed
FDNY summons (OATH)JUDGMENT DOCKETED
Docketed Mar 31, 2026Balance $775Ticket #014192682L
FIRE PROTECTION SYSTEMS
DOB summons (OATH)JUDGMENT DOCKETED
Docketed Mar 31, 2024Balance $312Ticket #039087034X
FAILURE TO MAINTAIN BUILDING IN CODE-COMPLIANT MANNER
DOB summons (OATH)JUDGMENT DOCKETED
Docketed Mar 31, 2024Balance $1,250Ticket #039085939L
FAILURE TO MAINTAIN ELEVATOR OR CONVEYING SYSTEM
DOB summons (OATH)JUDGMENT DOCKETED
Docketed Mar 31, 2024Balance $625Ticket #039085940Z
FAILURE TO MAINTAIN ELEVATOR OR CONVEYING SYSTEM
DOB summons (OATH)JUDGMENT DOCKETED
Docketed Apr 30, 2024Balance $625Ticket #039085847Y
FAILURE TO MAINTAIN BUILDING IN CODE-COMPLIANT MANNER

+ 17 more docketed judgments — view full report

ECBElevator
ACTIVE
Issued Jul 16, 2026#39196363J

ENTIRE DEVICE OUT OF SERVICE REPAIR

View this violation's full details & status history →
HPDClass C
NOTICE OF ISSUANCE SENT TO TENANT
Issued Jul 2, 2026#19047011

HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF ROACHES IN THE ENTIRE APARTMENT LOCATED AT APT 8B, 8th STORY, 1st APARTMENT FROM NORTH AT EAST

View this violation's full details & status history →
HPDClass A
NOV SENT OUT
Issued Jul 2, 2026#19047012

§ 27-2013 ADM CODE PAINT WITH LIGHT COLORED PAINT TO THE SATISFACTION OF THIS DEPARTMENT THE EAST AND SOUTH WALLS AND CEILING IN THE KITCHEN LOCATED AT APT 8B, 8th STORY, 1st APARTMENT FROM NORTH AT EAST

View this violation's full details & status history →
HPDClass A
NOV SENT OUT
Issued Jul 2, 2026#19047013

§ 27-2011 ADM CODE CLEANSE TO THE SATISFACTION OF THIS DEPARTMENT THE GROUT AT EAST AND NORTH WALLS IN THE BATHROOM LOCATED AT APT 8B, 8th STORY, 1st APARTMENT FROM NORTH AT EAST

View this violation's full details & status history →
HPDClass B
NOV SENT OUT
Issued Jul 2, 2026#19047014

§ 27-2005 ADM CODE PROPERLY SECURE THE LOOSE VANITY CABINET AT EAST WALL IN THE BATHROOM LOCATED AT APT 8B, 8th STORY, 1st APARTMENT FROM NORTH AT EAST

View this violation's full details & status history →

+ 399 more violations on record — view full report

Get the Complete Report for 521 WEST 42 ST

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

Free to view core records, no credit card required — the paid report adds title history & analysis.

View Report

Frequently Asked Questions

When was 521 WEST 42 ST, Manhattan built?

The building at 521 WEST 42 ST, Manhattan, NY 10036 was constructed in 2005. It is classified as a condo - multi-dwelling with 19 floors and 73 units. The building area is 94,132 sqft.

Are there building permits at 521 WEST 42 ST, Manhattan?

Yes. 521 WEST 42 ST, Manhattan, NY 10036 has 64 building permits on record, with 51 currently active. Permits are sourced from the NYC Department of Buildings (DOB Legacy and DOB NOW systems). The most recent permit is a Cats Registration (CURRENT) filed Jun 3, 2025.

Does 521 WEST 42 ST, Manhattan have violations?

Yes. 521 WEST 42 ST, Manhattan, NY 10036 has 404 violations on record, with 76 currently open. Breakdown: 49 DOB, 30 ECB, 325 HPD. Sources: NYC DOB, HPD, and ECB/OATH.

Does 521 WEST 42 ST, Manhattan have docketed judgments?

Yes. 521 WEST 42 ST, Manhattan, NY 10036 has 22 docketed judgments on record with the NYC Office of Administrative Trials & Hearings (OATH), with an open balance of $4,837. 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 521 WEST 42 ST?

521 WEST 42 ST, Manhattan, NY 10036 has an assessed market value of $1.6M and a total assessed value of $741K (land: $6K). Assessment data is from the NYC Department of Finance (DOF).

When was 521 WEST 42 ST last sold?

521 WEST 42 ST, Manhattan, NY 10036 last sold for $1.3M on Sep 28, 2018. Sale records are sourced from NYC ACRIS and Department of Finance rolling sales data.

What is the zoning for 521 WEST 42 ST?

521 WEST 42 ST, Manhattan, NY 10036 is zoned C6-4. 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.

How do I get a full property report for 521 WEST 42 ST?

Search 521 WEST 42 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.

Search Another Property

Look up violations, permits, and records for any tri-state address.

Related searches
Manhattan Property Search →Manhattan Permit Search →Manhattan Violation Lookup →Manhattan Tax Search →Manhattan Title Search →Manhattan Zoning Lookup →NYC Permit Search →NYC Violation Lookup →NYC Property Tax →NYC Zoning Lookup →NYC Compliance Deadlines →NYC Violation Types →Free Property Search →Data Sources →Class R Buildings Guide →
521 WEST 42 ST, Manhattan, NY 10036 — Property Records, Permits, Violations, Tax & Zoning | RegWatch