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Building report

603 Isham Street

Public records for this building, including violations, complaints, housing court cases and ownership details.

Built
1930
Units
41
Owner of record
ALEF REALTY MANAGEMENT CO., LLC
Open HPD violations
3
HPD records on file
24

Violations at 603 Isham Street

24 on record
2025-08-19Class BDismissed

§ 27-2045(B)(1)(A) HMC, § 12-01, § 12-03 RCNY REPAIR, REPLACE OR PROVIDE AN APPROVED AND OPERATIONAL SMOKE DETECTING DEVICE, INSTALLED IN ACCORDANCE WITH DEPARTMENT OF BUILDINGS RULES AND REGULATIONS MISSING IN THE ENTIRE APARTMENT LOCATED AT APT 5G, 5th STORY, 2nd APARTMENT FROM SOUTH AT WEST , SECTION ''SOUTH''

HPD · 702 · Record 18170434
2025-08-19Class BDismissed

§ 27-2045(B)(1)(B) HMC, § 12-06, § 12-07, § 12-09 RCNY REPAIR, REPLACE OR PROVIDE AN APPROVED AND OPERATIONAL CARBON MONOXIDE DETECTING DEVICE, INSTALLED IN ACCORDANCE WITH APPLICABLE LAW AND RULES MISSING IN THE ENTIRE APARTMENT LOCATED AT APT 5G, 5th STORY, 2nd APARTMENT FROM SOUTH AT WEST , SECTION ''SOUTH''

HPD · 1503 · Record 18170433
2025-08-19Class COpen

§ 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''

HPD · 742 · Record 18170432
2022-01-14Class ADismissed

§ 27-2013 ADM CODE PAINT WITH LIGHT COLORED PAINT TO THE SATISFACTION OF THIS DEPARTMENT ALL WALLS IN THE FOYER AT THE BUILDING ENTRANCE , 1st STORY

HPD · 556 · Record 14780431
2022-01-14Class BDismissed

§ 27-2005 ADM CODE PROPERLY REPAIR WITH SIMILAR MATERIAL THE BROKEN OR DEFECTIVE FIRE RETARDANT MATERIAL AT ALL WALLS IN THE FOYER AT THE BUILDING ENTRANCE , 1st STORY

HPD · 502 · Record 14780428

Who owns 603 Isham Street?

Owner of record: ALEF REALTY MANAGEMENT CO., LLC. An owner name can come from an earlier filing. Compare the latest HPD registration with the recorded deed before relying on it.

Apartments at 603 Isham Street

Recorded residential units: 41. Recorded year built: 1930. These building facts do not show current vacancies or when a particular apartment was renovated.

This tax lot appears in the RGB list based on 2024 building registrations, published as of November 2025. That is a building-level historical signal; it does not identify which apartments are stabilized today. Check the official rent-stabilized building lists.

Look up more about this building

See the full record for 603 Isham Street

The full report includes the grade, all 24 violations with dates and outcomes, housing court filings and ownership details.

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Included
  1. 01Overall grade and scores by category
  2. 02Details for all 24 HPD violations
  3. 03Housing court filings and outcomes
  4. 04Ownership history and LLC connections