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603 Isham St

Manhattan, NY 10034Company-ownedBBL 1022430008BIN 1065001
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Updated Aug 1, 2026 · 16 sources

Year Built1930
Floors5
Units42
Building Area33,570 sqft
ZoningR7A
ClassC7
Market Value$4.2M

603 ISHAM ST is a property located at 603 ISHAM ST, Manhattan, NY 10034. It is classified as a walk-up apartment - over six families with stores. The building was constructed in 1930. It has 5 floors and 42 units. The building area is 33,570 square feet on a 9,890 sqft lot. The property is zoned R7A. The assessed market value is $4.2M. Public records list the property as company-owned. There are 1 building permit on record (0 active). There are 37 violations on record (8 currently open). Data sourced from NYC Department of Buildings (DOB), Housing Preservation & Development (HPD), Department of Finance (DOF), and other government agencies.

A RegWatch Dossier

225records on file
93Energy Star

Completed in 1930, 603 Isham St rises 5 stories over New York. Public records put it at 42 units and 33,570 square feet of floor area, on land zoned R7A. It is carried on the public rolls at a market value of $4.2M, and assessed for tax at $1.9M. In the 46 years its record reaches back, the lot has drawn 225 separate government filings.

The documentary life of the address leans hard toward complaint: 106 of its 225 records, fully 47%, fall under that one heading. Violation (37) and inspection (34) trail well behind. 8 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 93, with a site energy-use intensity of 61.4 kBtu per square foot. Its operations answer for roughly 179 metric tons of CO2-equivalent a year.

Read together — 47% complaint, 46 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.

$4.2M of New York, written across 225 government filings.

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

Property Details

Address603 ISHAM ST, Manhattan, NY 10034
Building TypeWalk-Up Apartment - Over Six Families With Stores
C7
Year Built1930
Floors5
Total Units42
Building Area33,570 sqft
Lot Size9,890 sqft
ZoningR7A
ConditionAverage
1022430008
1065001
OwnershipCompany-owned

Assessment & Sales

$4.2M
$1.9M
$78K

Building Permits

1 on record
Limited AlterationDOB NOW
SIGNED OFF
Filed N/AJob #M01248891-I1
View this permit's full record & inspection history →

Violations

37 on record · 8 open
HPDClass C
CERTIFICATION POSTPONMENT DENIED
Issued Aug 19, 2025#18170432

§ 27-2070 ADM CODE PROVIDE AN ADEQUATE SUPPLY OF GAS TO THE FIXTURES AT RANGE IN THE KITCHEN LOCATED AT APT 5G, 5th STORY, 2nd APARTMENT FROM SOUTH AT WEST , SECTION ''SOUTH''

View this violation's full details & status history →

+ 36 more violations on record — view full report

Get the Complete Report for 603 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 603 ISHAM ST, Manhattan built?

The building at 603 ISHAM ST, Manhattan, NY 10034 was constructed in 1930. It is classified as a walk-up apartment - over six families with stores with 5 floors and 42 units. The building area is 33,570 sqft.

Are there building permits at 603 ISHAM ST, Manhattan?

Yes. 603 ISHAM ST, Manhattan, NY 10034 has 1 building permit on record, with 0 currently active. Permits are sourced from the NYC Department of Buildings (DOB Legacy and DOB NOW systems). The most recent permit is a Limited Alteration (SIGNED OFF) filed N/A.

Does 603 ISHAM ST, Manhattan have violations?

Yes. 603 ISHAM ST, Manhattan, NY 10034 has 37 violations on record, with 8 currently open. Breakdown: 12 DOB, 1 ECB, 24 HPD. Sources: NYC DOB, HPD, and ECB/OATH.

Does 603 ISHAM ST, Manhattan have docketed judgments?

No docketed OATH judgments were found in local records for 603 ISHAM ST, Manhattan, NY 10034. Judgment data is sourced from NYC Office of Administrative Trials & Hearings (OATH) hearing records.

What is the property tax assessment for 603 ISHAM ST?

603 ISHAM ST, Manhattan, NY 10034 has an assessed market value of $4.2M and a total assessed value of $1.9M (land: $78K). Assessment data is from the NYC Department of Finance (DOF).

What is the zoning for 603 ISHAM ST?

603 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 603 ISHAM ST?

603 ISHAM ST, Manhattan, NY 10034 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 603 ISHAM ST?

Search 603 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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603 ISHAM ST, Manhattan, NY 10034 — Property Records, Permits, Violations, Tax & Zoning | RegWatch