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Manhattan • Education

20 West End Ave

Manhattan, NY 10023Company-ownedBBL 1011520001BIN 1030313
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Updated Aug 1, 2026 · 16 sources

Year Built1957
Floors7
Units1
Building Area58,272 sqft
ZoningC4-7
ClassW3
Market Value$10.7M

20 WEST END AVE is a property located at 20 WEST END AVE, Manhattan, NY 10023. It is classified as a education - private/charter school. The building was constructed in 1957. It has 7 floors and 1 unit. The building area is 58,272 square feet on a 10,042 sqft lot. The property is zoned C4-7. The assessed market value is $10.7M. Public records list the property as company-owned. There are 115 building permits on record (75 active). There are 44 violations on record (0 currently open). 5 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

301records on file
73Energy Star

Completed in 1957, 20 West End Ave rises 7 stories over New York. Public records put it at 1 unit and 58,272 square feet of floor area, on land zoned C4-7. It is carried on the public rolls at a market value of $10.7M, and assessed for tax at $4.8M. In the 59 years its record reaches back, the lot has drawn 301 separate government filings.

The documentary life of the address leans hard toward permit: 115 of its 301 records, fully 38%, fall under that one heading. Violation (44) and assignment (35) trail well behind. No 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 2012.

On the environmental ledger, the building posts an Energy Star score of 73, with a site energy-use intensity of 77.3 kBtu per square foot. Its operations answer for roughly 468 metric tons of CO2-equivalent a year.

Read together — 38% permit, 59 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.

$10.7M of New York, written across 301 government filings.

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

Property Details

Address20 WEST END AVE, Manhattan, NY 10023
Building TypeEducation - Private/Charter School
W3
Year Built1957
Floors7
Total Units1
Building Area58,272 sqft
Lot Size10,042 sqft
ZoningC4-7
1011520001
1030313
OwnershipCompany-owned

Assessment & Sales

$10.7M
$4.8M
$1.9M

Building Permits

115 on record · 75 active
Alteration — Type 2DOB Legacy
SIGNED OFF
Filed Feb 1, 2017Est. cost $29KJob #140511319-01

GEN. CONSTR.

View this permit's full record & inspection history →
Alteration — Type 3DOB Legacy
SIGNED OFF
Filed Sep 22, 2016Job #140519945-01
View this permit's full record & inspection history →
Construction EquipmentDOB Legacy
ISSUED
Filed Jul 19, 2016Job #140511319-01-01

OT

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Construction EquipmentDOB Legacy
ISSUED
Filed Jul 15, 2016Job #140519945-01-01

EQ

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Alteration — Type 2DOB Legacy
PLAN EXAM - IN PROCESS
Filed Jun 20, 2016Est. cost $29KJob #140511159-01

GEN. CONSTR.

View this permit's full record & inspection history →

+ 110 more permits — view full report

Violations

44 on record · none currently open
Judgments · 5 docketed
FDNY summons (OATH)JUDGMENT DOCKETED
Docketed Oct 31, 2010Ticket #011167873K
AFFIDAVITS, DESIGN/INSTALLATION DOCUMENTS, AND OTHER DOCUMENTATION
DOB summons (OATH)JUDGMENT DOCKETED
Docketed May 31, 2010Ticket #038207163J
FAIL MAINTAIN BLDG IN COMPLIANT MANNER: SERVICE EQUIPMENT
OATH summonsJUDGMENT DOCKETED
Docketed Dec 28, 2002Ticket #0124257320
20020521N
OATH summonsJUDGMENT DOCKETED
Docketed Nov 6, 2000Ticket #000144424Y
EXPIRED REGISTRATION 01/04/93
DOB summons (OATH)JUDGMENT DOCKETED
Docketed Oct 31, 2000Ticket #038094026P
FAILURE TO MAINTAIN ELEVATOR.
DOB LegacyE
RESOLVED
Issued Sep 14, 2021#2548865
View this violation's full details & status history →
DOB LegacyE
RESOLVED
Issued Sep 14, 2021#2548866
View this violation's full details & status history →
DOB LegacyEGRADE
DISMISSED
Issued Apr 29, 2021#2519068

FAILURE TO DISPLAY ENERGY EFFICIENCY SCORE AND ENERGY EFFICIENCY GRADE AS PER ADCODE SEC. 28-309.12.3

View this violation's full details & status history →
DOB LegacyE
RESOLVED
Issued May 9, 2019#2363672
View this violation's full details & status history →
DOB LegacyE
RESOLVED
Issued May 9, 2019#2363671
View this violation's full details & status history →

+ 39 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 20 WEST END AVE, Manhattan built?

The building at 20 WEST END AVE, Manhattan, NY 10023 was constructed in 1957. It is classified as a education - private/charter school with 7 floors and 1 unit. The building area is 58,272 sqft.

Are there building permits at 20 WEST END AVE, Manhattan?

Yes. 20 WEST END AVE, Manhattan, NY 10023 has 115 building permits on record, with 75 currently active. Permits are sourced from the NYC Department of Buildings (DOB Legacy and DOB NOW systems). The most recent permit is a Alteration — Type 2 (SIGNED OFF) filed Feb 1, 2017.

Does 20 WEST END AVE, Manhattan have violations?

Yes. 20 WEST END AVE, Manhattan, NY 10023 has 44 violations on record, with 0 currently open. Breakdown: 30 DOB, 14 ECB. Sources: NYC DOB, HPD, and ECB/OATH.

Does 20 WEST END AVE, Manhattan have docketed judgments?

Yes. 20 WEST END AVE, Manhattan, NY 10023 has 5 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 20 WEST END AVE?

20 WEST END AVE, Manhattan, NY 10023 has an assessed market value of $10.7M and a total assessed value of $4.8M (land: $1.9M). Assessment data is from the NYC Department of Finance (DOF).

What is the zoning for 20 WEST END AVE?

20 WEST END AVE, Manhattan, NY 10023 is zoned C4-7. 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 20 WEST END AVE?

20 WEST END AVE, Manhattan, NY 10023 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 20 WEST END AVE?

Search 20 WEST END 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 adds the complete title history, owner contacts, and a downloadable PDF.

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20 WEST END AVE, Manhattan, NY 10023 — Property Records, Permits, Violations, Tax & Zoning | RegWatch