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Manhattan • Condo

311 West 43 St

Manhattan, NY 10036Company-ownedBBL 1010341001BIN 1024965
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Updated Aug 1, 2026 · 16 sources

Year Built1925
Floors14
Units3
Building Area150,110 sqft
ZoningC6-2
ClassRB
Market Value$37.6M

311 WEST 43 ST is a property located at 311 WEST 43 ST, Manhattan, NY 10036. It is classified as a condo - office space. The building was constructed in 1925. It has 14 floors and 3 units. The building area is 150,110 square feet on a 12,552 sqft lot. The property is zoned C6-2. The assessed market value is $37.6M. It last sold for $42M on Jun 18, 2026. Public records list the property as company-owned. There are 432 building permits on record (262 active). There are 146 violations on record (2 currently open). 21 docketed judgments carrying $14,410 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

1,076records on file
78Energy Star

Completed in 1925, 311 West 43 St rises 14 stories over New York. Public records put it at 3 units and 150,110 square feet of floor area, on land zoned C6-2. It is carried on the public rolls at a market value of $37.6M, and assessed for tax at $16.9M. In the 72 years its record reaches back, the lot has drawn 1,076 separate government filings — a paper trail nearly as tall as the building itself.

The documentary life of the address leans hard toward permit: 432 of its 1,076 records, fully 40%, fall under that one heading. Inspection (285) and violation (146) trail well behind. 2 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 78, with a site energy-use intensity of 52.5 kBtu per square foot. Its operations answer for roughly 977 metric tons of CO2-equivalent a year.

Read together — 40% permit, 72 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.

$37.6M of New York, written across 1,076 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

Address311 WEST 43 ST, Manhattan, NY 10036
Building TypeCondo - Office Space
RB
Year Built1925
Floors14
Total Units3
Building Area150,110 sqft
Lot Size12,552 sqft
ZoningC6-2
ConditionAverage
1010341001
1024965
OwnershipCompany-owned

Assessment & Sales

$37.6M
$16.9M
$2.6M
$42M
Last Sale DateJun 18, 2026

Building Permits

432 on record · 262 active
General ConstructionDOB NOW
PERMIT ENTIRE
Filed Jul 27, 2026Est. cost $2.5MJob #M01397040-I1
View this permit's full record & inspection history →
General ConstructionDOB NOW
PERMIT ISSUED
Filed Jun 22, 2026Est. cost $2.5MJob #M01397040-I1

Initial Permit

View this permit's full record & inspection history →
General ConstructionDOB NOW
LOC ISSUED
Filed Aug 20, 2025Est. cost $9KJob #M01227983-I1
View this permit's full record & inspection history →
Asbestos AbatementDEP
CLOSED
Filed Jul 17, 2025Job #TRU1402MN25
View this permit's full record & inspection history →
StructuralDOB NOW
SIGNED-OFF
Filed Jun 6, 2025Est. cost $9KJob #M01227983-I1

Initial Permit

View this permit's full record & inspection history →

+ 427 more permits — view full report

Violations

146 on record · 2 open
Open judgment balance — docketed OATH judgments$14,410
Judgments · 21 docketed
DOB summons (OATH)JUDGMENT DOCKETED
Docketed Feb 28, 2026Ticket #037035508L
FAILURE TO FILE COMPLETE BOILER INSPECTION REPORT
DOB summons (OATH)JUDGMENT DOCKETED
Docketed Feb 28, 2026Ticket #037035509N
FAILURE TO FILE COMPLETE BOILER INSPECTION REPORT
FDNY summons (OATH)JUDGMENT DOCKETED
Docketed Jun 1, 2026Balance $935Ticket #012170672H
FIRE PROTECTION SYSTEMS:FAIL TO PREVENT UNNECESSARY UNWARRANTED ALARMS
FDNY summons (OATH)JUDGMENT DOCKETED
Docketed Oct 31, 2025Balance $935Ticket #012162545P
FIRE PROTECTION SYSTEMS:FAIL TO PREVENT UNNECESSARY UNWARRANTED ALARMS
FDNY summons (OATH)JUDGMENT DOCKETED
Docketed Jun 30, 2025Balance $5,000Ticket #012157021H
FIRE PROTECTION SYSTEMS:FAIL TO PREVENT UNNECESSARY UNWARRANTED ALARMS

+ 16 more docketed judgments — view full report

ECBBoiler
ACTIVE
Issued Jul 1, 2025#37035508L

FAILURE TO FILE REQUIRED ANNUAL BOILER INSPECTION REPORTS FOR LOW-PRESSURE BOILER 10000085730N0002 IN ACCORDANCE WITH THE RULES OF THE DEPARTMENT.1RCNY 103-01(D)(1)REQUIRES THAT AN ANNUAL INSPECTION REPORT FOR

View this violation's full details & status history →
ECBBoiler
ACTIVE
Issued Jul 1, 2025#37035509N

FAILURE TO FILE REQUIRED ANNUAL BOILER INSPECTION REPORTS FOR LOW-PRESSURE BOILER 10000085730N0003 IN ACCORDANCE WITH THE RULES OF THE DEPARTMENT.1RCNY 103-01(D)(1)REQUIRES THAT AN ANNUAL INSPECTION REPORT FOR

View this violation's full details & status history →

+ 144 more violations on record — view full report

Get the Complete Report for 311 WEST 43 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 311 WEST 43 ST, Manhattan built?

The building at 311 WEST 43 ST, Manhattan, NY 10036 was constructed in 1925. It is classified as a condo - office space with 14 floors and 3 units. The building area is 150,110 sqft.

Are there building permits at 311 WEST 43 ST, Manhattan?

Yes. 311 WEST 43 ST, Manhattan, NY 10036 has 432 building permits on record, with 262 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 (PERMIT ENTIRE) filed Jul 27, 2026.

Does 311 WEST 43 ST, Manhattan have violations?

Yes. 311 WEST 43 ST, Manhattan, NY 10036 has 146 violations on record, with 2 currently open. Breakdown: 109 DOB, 37 ECB. Sources: NYC DOB, HPD, and ECB/OATH.

Does 311 WEST 43 ST, Manhattan have docketed judgments?

Yes. 311 WEST 43 ST, Manhattan, NY 10036 has 21 docketed judgments on record with the NYC Office of Administrative Trials & Hearings (OATH), with an open balance of $14,410. 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 311 WEST 43 ST?

311 WEST 43 ST, Manhattan, NY 10036 has an assessed market value of $37.6M and a total assessed value of $16.9M (land: $2.6M). Assessment data is from the NYC Department of Finance (DOF).

When was 311 WEST 43 ST last sold?

311 WEST 43 ST, Manhattan, NY 10036 last sold for $42M on Jun 18, 2026. Sale records are sourced from NYC ACRIS and Department of Finance rolling sales data.

What is the zoning for 311 WEST 43 ST?

311 WEST 43 ST, Manhattan, NY 10036 is zoned C6-2. 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 311 WEST 43 ST?

311 WEST 43 ST, Manhattan, NY 10036 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 311 WEST 43 ST?

Search 311 WEST 43 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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311 WEST 43 ST, Manhattan, NY 10036 — Property Records, Permits, Violations, Tax & Zoning | RegWatch