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Manhattan • Education

620 Isham St

Manhattan, NY 10034Individually ownedBBL 1022420019BIN 1082056
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Updated Aug 1, 2026 · 16 sources

Year Built1924
Floors3
Units5
Building Area127,200 sqft
ZoningR7A
ClassW2
Market Value$13.3M

620 ISHAM ST is a property located at 620 ISHAM ST, Manhattan, NY 10034. It is classified as a education - parochial school. The building was constructed in 1924. It has 3 floors and 5 units. The building area is 127,200 square feet on a 35,950 sqft lot. The property is zoned R7A. The assessed market value is $13.3M. Public records list the property as individually owned. There are 66 building permits on record (41 active). There are 25 violations on record (12 currently open). 15 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

299records on file
67Energy Star

Completed in 1924, 620 Isham St rises 3 stories over New York. Public records put it at 5 units and 127,200 square feet of floor area, on land zoned R7A. It is carried on the public rolls at a market value of $13.3M, and assessed for tax at $6.0M. In the 36 years its record reaches back, the lot has drawn 299 separate government filings.

The documentary life of the address leans hard toward inspection: 84 of its 299 records, fully 28%, fall under that one heading. Permit (66) and enforcement (59) trail well behind. 12 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 2026.

On the environmental ledger, the building posts an Energy Star score of 67, with a site energy-use intensity of 52.8 kBtu per square foot. Its operations answer for roughly 640 metric tons of CO2-equivalent a year.

Read together — 28% inspection, 36 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.

$13.3M of New York, written across 299 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

Address620 ISHAM ST, Manhattan, NY 10034
Building TypeEducation - Parochial School
W2
Year Built1924
Floors3
Total Units5
Building Area127,200 sqft
Lot Size35,950 sqft
ZoningR7A
1022420019
1082056
OwnershipIndividually owned

Assessment & Sales

$13.3M
$6M
$600K

Building Permits

66 on record · 41 active
Cats RegistrationOther
CURRENT
Filed Mar 2, 2026Job #485343
View this permit's full record & inspection history →
Cats Registration InspectionOther
CURRENT
Filed Jul 7, 2025Job #463221
View this permit's full record & inspection history →
General ConstructionDOB NOW
LOC ISSUED
Filed Jan 3, 2025Est. cost $9KJob #M01106460-S1
View this permit's full record & inspection history →
General ConstructionDOB NOW
LOC ISSUED
Filed Jan 3, 2025Est. cost $10KJob #M01106460-I1
View this permit's full record & inspection history →
General ConstructionDOB NOW
PERMIT ISSUED
Filed Oct 7, 2024Est. cost $42KJob #M01109981-I1

Initial Permit

View this permit's full record & inspection history →

+ 61 more permits — view full report

Violations

25 on record · 12 open
Judgments · 15 docketed
OATH summonsJUDGMENT DOCKETED
Docketed May 31, 2022Ticket #051004878Y
FAIL TO ENSURE PROPER WORKPLACE ENTRANCE PROCEDURE FOLLOWED
DOB summons (OATH)JUDGMENT DOCKETED
Docketed Dec 31, 2022Ticket #035560500J
FAILURE TO SAFEGUARD ALL PERSONS AND PROP AFFECTED BY CONST OPERATIONS
Sanitation summons (OATH)JUDGMENT DOCKETED
Docketed Oct 31, 2017Ticket #045210308M
ILLEGAL PLACEMENT POSTERS STICKERS ON WINDSHIELDS WIPERS ON VEHICLES
Sanitation summons (OATH)JUDGMENT DOCKETED
Docketed Oct 31, 2017Ticket #045210309Y
ILLEGAL PLACEMENT POSTERS STICKERS ON WINDSHIELDS WIPERS ON VEHICLES
Sanitation summons (OATH)JUDGMENT DOCKETED
Docketed Oct 31, 2017Ticket #045210310L
ILLEGAL PLACEMENT POSTERS STICKERS ON WINDSHIELDS WIPERS ON VEHICLES

+ 10 more docketed judgments — view full report

DOB LegacyEnergy Benchmarking
ACTIVE
Issued May 2, 2023#2640210

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

View this violation's full details & status history →
DOB LegacyEnergy Benchmarking
ACTIVE
Issued May 2, 2019#2359179

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

View this violation's full details & status history →
DOB LegacyJVIOS
ACTIVE
Issued Apr 5, 2019#2344776

2017 VIOS ISSUED TO ELEVATORS IN PRIVATE RES DWELLINGS (1 OR 2 FAMILY DWELLINGS)

View this violation's full details & status history →
DOB LegacyJVIOS
ACTIVE
Issued Sep 15, 2017#2201703

2016 VIOS ISSUED TO ELEVATORS IN PRIVATE RES DWELLINGS(1 OR 2 FAMILY DWELLINGS)

View this violation's full details & status history →
DOB LegacyJVIOS
ACTIVE
Issued Dec 1, 2016#2112399

2015 VIOS ISSUED TO ELEVATORS IN PRIVATE RES DWELLINGS(1 OR 2 FAMILY DWELLINGS)

View this violation's full details & status history →

+ 20 more violations on record — view full report

Get the Complete Report for 620 ISHAM 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 620 ISHAM ST, Manhattan built?

The building at 620 ISHAM ST, Manhattan, NY 10034 was constructed in 1924. It is classified as a education - parochial school with 3 floors and 5 units. The building area is 127,200 sqft.

Are there building permits at 620 ISHAM ST, Manhattan?

Yes. 620 ISHAM ST, Manhattan, NY 10034 has 66 building permits on record, with 41 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 Mar 2, 2026.

Does 620 ISHAM ST, Manhattan have violations?

Yes. 620 ISHAM ST, Manhattan, NY 10034 has 25 violations on record, with 12 currently open. Breakdown: 22 DOB, 3 ECB. Sources: NYC DOB, HPD, and ECB/OATH.

Does 620 ISHAM ST, Manhattan have docketed judgments?

Yes. 620 ISHAM ST, Manhattan, NY 10034 has 15 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 620 ISHAM ST?

620 ISHAM ST, Manhattan, NY 10034 has an assessed market value of $13.3M and a total assessed value of $6M (land: $600K). Assessment data is from the NYC Department of Finance (DOF).

What is the zoning for 620 ISHAM ST?

620 ISHAM ST, Manhattan, NY 10034 is zoned R7A. 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 620 ISHAM ST?

620 ISHAM ST, Manhattan, NY 10034 is individually 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 620 ISHAM ST?

Search 620 ISHAM 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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620 ISHAM ST, Manhattan, NY 10034 — Property Records, Permits, Violations, Tax & Zoning | RegWatch