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Manhattan • Elevator Apartment

21 Claremont Ave

Manhattan, NY 10027Company-ownedBBL 1019900010
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16 sources

Year Built1910
Floors10
Units47
Building Area58,750 sqft
ZoningR8
ClassD3
Market Value$5.3M

21 CLAREMONT AVE is a property located at 21 CLAREMONT AVE, Manhattan, NY 10027. It is classified as a elevator apartment - fireproof without stores. The building was constructed in 1910. It has 10 floors and 47 units. The building area is 58,750 square feet on a 8,400 sqft lot. The property is zoned R8. The assessed market value is $5.3M. Public records list the property as company-owned. There are 181 building permits on record (117 active). There are 53 violations on record (15 currently open). 6 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

376records on file
100Energy Star

Completed in 1910, 21 Claremont Ave rises 10 stories over New York. Public records put it at 47 units and 58,750 square feet of floor area, on land zoned R8. It is carried on the public rolls at a market value of $5.3M, and assessed for tax at $2.4M. In the 38 years its record reaches back, the lot has drawn 376 separate government filings.

The documentary life of the address leans hard toward permit: 181 of its 376 records, fully 48%, fall under that one heading. Violation (53) and c of o (51) 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 11.6 kBtu per square foot. Its operations answer for roughly 64 metric tons of CO2-equivalent a year.

Read together — 48% permit, 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.

$5.3M of New York, written across 376 government filings.

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Executive summary, compliance history, title chain & existing debt, recorded documents & agreements, owner contacts, tax detail, Use & Development, build envelope, market comps, investment metrics, deal math & stress tests, deal signals, pre-foreclosure signals, neighborhood. Downloadable PDF. One payment, no subscription.

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

Address21 CLAREMONT AVE, Manhattan, NY 10027
Building TypeElevator Apartment - Fireproof Without Stores
D3
Year Built1910
Floors10
Total Units47
Building Area58,750 sqft
Lot Size8,400 sqft
ZoningR8
ConditionAverage
1019900010
OwnershipCompany-owned

Assessment & Sales

$5.3M
$2.4M
$194K

Building Permits

181 on record · 117 active
ElectricalDOB NOW
APPROVED
Filed Sep 22, 2026Job #M01314534-P1

IN UNIT 32 INSTALL 39 LIGHTS, 40 OUTLETS, 24 SWITCHES, 7 SMOKE DETECTORS, 7 GFI, 7 AC OUTLETS, NEW PANEL SINGLE, PHASE, 100 AMP, NEW RISER UPGRADE 100 AMP 1/0 WIRE.IN UNIT 43 INSTALL 18 LIGHTS, 18 OUTLETS, 10 SWITCHES, 3 SMOKE DETECTORS, 5 GFCIS, 5 AC OUTLETS, NEW PANEL SINGLE PHASE 100 AMP 1/0 WIRE.

View this permit's full record & inspection history →
General ConstructionDOB NOW
LOC ISSUED
Filed Aug 14, 2026Est. cost $5KJob #M01427106-I1
View this permit's full record & inspection history →
ElectricalDOB NOW
PERMIT ISSUED
Filed Jul 29, 2026Job #M01438449-I1-EL

floor 10 - unit 12. New riser upgrade 125A, New panel , New dedicated line for stove 50A, New dedicated line for washer/dryer 30A

View this permit's full record & inspection history →
Supported ScaffoldDOB NOW
SIGNED-OFF
Filed Jul 9, 2026Est. cost $5KJob #M01427106-I1

Initial Permit

View this permit's full record & inspection history →
General ConstructionDOB NOW
LOC ISSUED
Filed Jun 5, 2026Est. cost $337KJob #M01292461-I1
View this permit's full record & inspection history →

+ 176 more permits — view full report

Violations

53 on record · 15 open
Judgments · 6 docketed
DOB summons (OATH)JUDGMENT DOCKETED
Docketed Feb 28, 2025Ticket #037027780K
FAIL SUBMIT REQUIRED REPORT OF CRIT EXAM DOCUMENTING EXTERIOR WALL
FDNY summons (OATH)JUDGMENT DOCKETED
Docketed Sep 18, 2013Ticket #011187938K
CERTIFICATES OF FITNESS AND CERTIFICATES OF QUALIFICATION
FDNY summons (OATH)JUDGMENT DOCKETED
Docketed Sep 19, 2013Ticket #011180851X
INSPECTION AND TESTING
DOB summons (OATH)JUDGMENT DOCKETED
Docketed Jan 31, 2002Ticket #038116765N
FAILURE TO MAINTAIN ELEVATOR.
OATH summonsJUDGMENT DOCKETED
Docketed Jul 31, 2000Ticket #000142725Z

+ 1 more docketed judgment — view full report

SafetyEnergy Benchmarking
ACTIVE
Issued Sep 25, 2026#VIO-DQ-EN-BENCH-202608-0166366

FAILURE TO FILE BENCHMARKING REPORT OF ENERGY USE AS PER AD. CODE SEC. 28-309.4

View this violation's full details & status history →

+ 52 more violations on record — view full report

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

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Frequently Asked Questions

When was 21 CLAREMONT AVE, Manhattan built?

The building at 21 CLAREMONT AVE, Manhattan, NY 10027 was constructed in 1910. It is classified as a elevator apartment - fireproof without stores with 10 floors and 47 units. The building area is 58,750 sqft.

Are there building permits at 21 CLAREMONT AVE, Manhattan?

Yes. 21 CLAREMONT AVE, Manhattan, NY 10027 has 181 building permits on record, with 117 currently active. Permits are sourced from the NYC Department of Buildings (DOB Legacy and DOB NOW systems). The most recent permit is a Electrical (APPROVED) filed Sep 22, 2026.

Does 21 CLAREMONT AVE, Manhattan have violations?

Yes. 21 CLAREMONT AVE, Manhattan, NY 10027 has 53 violations on record, with 15 currently open. Breakdown: 1 DOB Safety, 26 DOB, 8 ECB, 18 HPD. Sources: NYC DOB, HPD, and ECB/OATH.

Does 21 CLAREMONT AVE, Manhattan have docketed judgments?

Yes. 21 CLAREMONT AVE, Manhattan, NY 10027 has 6 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 21 CLAREMONT AVE?

21 CLAREMONT AVE, Manhattan, NY 10027 has an assessed market value of $5.3M and a total assessed value of $2.4M (land: $194K). Assessment data is from the NYC Department of Finance (DOF).

What is the zoning for 21 CLAREMONT AVE?

21 CLAREMONT AVE, 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 21 CLAREMONT AVE?

21 CLAREMONT AVE, 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 21 CLAREMONT AVE?

Search 21 CLAREMONT AVE 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 ($15, one-time) adds the complete title history, owner contacts, and a downloadable PDF.

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21 CLAREMONT AVE, Manhattan, NY 10027 — Property Records, Permits, Violations, Tax & Zoning | RegWatch