603 Isham Street
Manhattan, NY 10034BBL 1-02243-0008Map
Owner of record: Alef Realty Management Co., LLC
603 Isham Street is a walk-up apartment building built in 1930 in Manhattan, 10034. It has 41 residential units across 5 floors. The owner of record is Alef Realty Management Co., LLC. HPD has recorded 24 housing violations here, most recently on August 19, 2025. 3 of the 24 most recent violations are still open. City tax records listed 12 rent-stabilized apartments here in 2024.
- HPD violations
- 24
- DOB violations
- 12
- ECB violations
- 1
- HPD complaints
- 95
What to know
Immediately hazardous issues among recent violations are still open.
Date of the most recent HPD inspection that found a problem.
No balance due on recent ECB violations.
Rent stabilization
Counts come from owners' rent-stabilization filings shown on NYC Department of Finance tax bills, as extracted by JustFix. They tell you a building has stabilized apartments, not which ones.
Think your apartment is stabilized? Request its rent history from HCR (free), then check your renewal with the renewal calculator.
Violations
Most recent first. Showing up to 50 per agency.
HPD housing violations · 24
- CImmediately hazardous
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''
Aug 19, 2025 · Apt 5G
Open — Certification postponment denied - BHazardous
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''
Aug 19, 2025 · Apt 5G
Closed — Violation dismissed - BHazardous
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''
Aug 19, 2025 · Apt 5G
Closed — Violation dismissed - BHazardous
Properly repair with similar material the broken or defective fire retardant material at the ceiling and all walls in the foyer at building entrance. , 1st story
Jan 14, 2022
Closed — Violation dismissed - ANon-hazardous
Paint with light colored paint to the satisfaction of this department the ceiling at the foyer, building entrance. , 1st story
Jan 14, 2022
Closed — Violation dismissed - BHazardous
Properly repair with similar material the broken or defective fire retardant material at all walls in the foyer at the building entrance , 1st story
Jan 14, 2022
Closed — Violation dismissed - ANon-hazardous
Paint with light colored paint to the satisfaction of this department all walls in the foyer at the building entrance , 1st story
Jan 14, 2022
Closed — Violation dismissed - BHazardous
And dept. rules and regulations. remove the encumbrance obstructing egress from fire escapes consisting of air conditioner at 1st fire escape window from north at 5th sty balcony at north stack, building front at fire escape
Jun 11, 2018
Closed — Violation dismissed - CImmediately hazardous
Trace and repair the source and abate the nuisance consisting of mold ... at ceiling in the bathroom located at apt 5a, 5th story, 1st apartment from north at east , section at north
Aug 29, 2015 · Apt 5A
Closed — Violation dismissed - BHazardous
Repair the broken or defective plastered surfaces and paint in a uniform color at ceiling and all walls in the bathroom located at apt 5a, 5th story, 1st apartment from north at east , section at north
Aug 29, 2015 · Apt 5A
Closed — Violation dismissed
Show 14 more ↓
- CImmediately hazardous
Replace with new the broken or defective wire glass in upper sash of window at public hall, 3rd story, section at east
Dec 9, 2014
Closed — Violation dismissed - BHazardous
Properly repair with similar material the broken or defective wood floor in the 4th room from north located at apt 1c, 1st story, 1st apartment from east at south , section at west
Nov 16, 2012 · Apt 1C
Closed — Violation dismissed - BHazardous
Repair the broken or defective plastered surfaces and paint in a uniform color all walls in the bathroom located at apt 1c, 1st story, 1st apartment from east at south , section at west
Nov 16, 2012 · Apt 1C
Closed — Violation dismissed - BHazardous
Repair the broken or defective plastered surfaces and paint in a uniform color ceiling in the bathroom located at apt 1c, 1st story, 1st apartment from east at south , section at west
Nov 16, 2012 · Apt 1C
Closed — Violation dismissed - BHazardous
Repair the broken or defective plastered surfaces and paint in a uniform color all walls and ceiling in the 4th room from north located at apt 1c, 1st story, 1st apartment from east at south , section at west
Nov 16, 2012 · Apt 1C
Closed — Violation dismissed - BHazardous
Trace and repair the source and abate the nuisance consisting of mold ... at south wall and ceiling in the bathroom located at apt 1c, 1st story, 1st apartment from east at south , section at west
Nov 16, 2012 · Apt 1C
Closed — Violation dismissed - BHazardous
Properly repair with similar material the broken or defective wood floor in the 2nd room from north located at apt 1c, 1st story, 1st apartment from east at south , section at west
Nov 16, 2012 · Apt 1C
Closed — Violation dismissed - CImmediately hazardous
Repair the broken or defective plastered surfaces and paint in a uniform color at ceiling in the private hallway located at apt 1c, 1st story, 1st apartment from east at south , section at west
Nov 16, 2012 · Apt 1C
Closed — Violation closed - BHazardous
Properly repair with similar material the broken or defective wood subfloor with vinyl floor tiles in the private hallway located at apt 1c, 1st story, 1st apartment from east at south , section at west
Nov 16, 2012 · Apt 1C
Closed — Violation dismissed - BHazardous
Properly repair with similar material the broken or defective ceramic tiles at south wall in the bathroom located at apt 1c, 1st story, 1st apartment from east at south , section at west
Nov 16, 2012 · Apt 1C
Closed — Violation dismissed - BHazardous
Properly repair with similar material the broken or defective ceramic floor tiles in the bathroom located at apt 1c, 1st story, 1st apartment from east at south , section at west
Nov 16, 2012 · Apt 1C
Closed — Violation dismissed - BHazardous
Trace and repair the source and abate the nuisance consisting of mold ... approx 2 sq ft at north wall in the 4th room from north located at apt 1c, 1st story, 1st apartment from east at south , section at west
Nov 16, 2012 · Apt 1C
Closed — Violation dismissed - BHazardous
Repair or replace the smoke detector defective in the entire apartment located at apt 2c, 2nd story, 2nd apartment from east at south
Jun 2, 2011 · Apt 2C
Open — Not complied with - BHazardous
Provide an approved and operational carbon monoxide detecting device, installed in accordance with applicable law and rules. in the entire apartment located at apt 2c, 2nd story, 2nd apartment from east at south
Jun 2, 2011 · Apt 2C
Open — Not complied with
DOB building violations · 12
- Failure to benchmark none
Failure to file benchmarking report of energy use as per ad. code sec. 28-309.4
Aug 3, 2024
Dob violation - dismissed - Failure to benchmark none
Failure to file benchmarking report of energy use as per ad. code sec. 28-309.4
May 3, 2024
Dob violation - dismissed - Failure to benchmark none
Failure to file benchmarking report of energy use as per ad. code sec. 28-309.4
May 3, 2023
Dob violation - dismissed - Failure to benchmark none
Failure to file benchmarking report of energy use as per ad. code sec. 28-309.4
Nov 3, 2022
Dob violation - dismissed - Failure to benchmark none
Failure to file benchmarking report of energy use as per ad. code sec. 28-309.4
Aug 3, 2022
Dob violation - dismissed - Failure to benchmark none
Failure to file benchmarking report of energy use as per ad. code sec. 28-309.4
Jun 2, 2022
Dob violation - dismissed - Boilers boiler required
Ll6291-local law 62/91 - boilers boiler required
May 4, 1998
Dob violation - dismissed - Boilers boiler required
Ll6291-local law 62/91 - boilers boiler required
Sep 16, 1997
Dob violation - active - Boilers boiler required
Ll6291-local law 62/91 - boilers boiler required
Feb 10, 1997
Dob violation - active - Boilers boiler required
Ll6291-local law 62/91 - boilers boiler required
Aug 29, 1995
Dob violation - active
Show 2 more ↓
- Boilers boiler required
Ll6291-local law 62/91 - boilers boiler required
Mar 18, 1994
Dob violation - active - Boilers boiler required
Ll6291-local law 62/91 - boilers boiler required
Mar 18, 1993
Dob violation - active
ECB violations · 1
- Non-hazardous
Occupancy contrary to that allowed by the building department records which stipulates building class ci walk up apartment-however; a group family day care center is now being operated at first fl wes with
Jul 1, 1998
Resolve
Complaints
- Heat/hot water
Entire building
Oct 22, 2026 · Apt BLDG
Open - Unsanitary condition
Garbage/recycling storage
Jul 12, 2026 · Apt BLDG
Close - Heat/hot water
Entire building
Apr 8, 2026 · Apt BLDG
Close - Heat/hot water
Entire building
Apr 8, 2026 · Apt BLDG
Close - Heat/hot water
Entire building
Mar 29, 2026 · Apt BLDG
Close - General
Bell/buzzer/intercom
Mar 29, 2026 · Apt 5A
Close - General
Bell/buzzer/intercom
Mar 29, 2026 · Apt 5A
Close - Heat/hot water
Entire building
Mar 29, 2026 · Apt 401
Close - Heat/hot water
Entire building
Mar 28, 2026 · Apt BLDG
Close - Heat/hot water
Entire building
Mar 17, 2026 · Apt BLDG
Close
Show 40 more ↓
- Heat/hot water
Entire building
Feb 25, 2026 · Apt BLDG
Close - Heat/hot water
Entire building
Feb 25, 2026 · Apt BLDG
Close - Heat/hot water
Entire building
Feb 24, 2026 · Apt 3F
Close - Heat/hot water
Entire building
Feb 24, 2026 · Apt BLDG
Close - Heat/hot water
Entire building
Feb 9, 2026 · Apt BLDG
Close - Heat/hot water
Entire building
Feb 8, 2026 · Apt BLDG
Close - Heat/hot water
Apartment only
Feb 8, 2026 · Apt 5D
Close - Heat/hot water
Entire building
Feb 8, 2026 · Apt BLDG
Close - Heat/hot water
Entire building
Feb 8, 2026 · Apt BLDG
Close - Heat/hot water
Entire building
Jan 29, 2026 · Apt BLDG
Close - General
Cooking gas
Jun 30, 2025 · Apt 3F
Close - Heat/hot water
Entire building
Apr 1, 2025 · Apt 5A
Close - Heat/hot water
Entire building
Mar 3, 2025 · Apt 2B
Close - Heat/hot water
Entire building
Jan 27, 2025 · Apt BLDG
Close - Heat/hot water
Entire building
Jan 25, 2025 · Apt BLDG
Close - Heat/hot water
Entire building
Dec 13, 2024 · Apt BLDG
Close - Heat/hot water
Entire building
Nov 18, 2024 · Apt BLDG
Close - Heat/hot water
Apartment only
Jan 11, 2022 · Apt 2B
Close - Heat/hot water
Entire building
Jan 4, 2022 · Apt BLDG
Close - Heat/hot water
Entire building
Dec 4, 2021 · Apt BLDG
Close - Heat/hot water
Entire building
Dec 1, 2021 · Apt BLDG
Close - Heat/hot water
Entire building
Nov 30, 2021 · Apt BLDG
Close - Heat/hot water
Entire building
Nov 4, 2021 · Apt BLDG
Close - Heat/hot water
Apartment only
Oct 29, 2021 · Apt 2B
Close - Heat/hot water
Apartment only
Feb 20, 2021 · Apt 5G
Close - Heat/hot water
Entire building
Dec 2, 2020 · Apt BLDG
Close - Heat/hot water
Entire building
Dec 1, 2020 · Apt BLDG
Close - Heat/hot water
Entire building
Nov 24, 2020 · Apt BLDG
Close - Heat/hot water
Entire building
Nov 17, 2020 · Apt BLDG
Close - Heat/hot water
Entire building
Nov 17, 2020 · Apt BLDG
Close - Heat/hot water
Entire building
Nov 16, 2020 · Apt BLDG
Close - Heat/hot water
Entire building
Jan 18, 2020 · Apt BLDG
Close - Heat/hot water
Entire building
Dec 4, 2019 · Apt BLDG
Close - Heat/hot water
Entire building
Dec 3, 2019 · Apt BLDG
Close - Heat/hot water
Entire building
Nov 23, 2018 · Apt BLDG
Close - Heat/hot water
Entire building
Nov 22, 2018 · Apt 2B
Close - Heat/hot water
Entire building
Nov 12, 2018 · Apt 3F
Close - Heat/hot water
Entire building
Jun 8, 2018 · Apt 3F
Close - Heat/hot water
Apartment only
Feb 10, 2016 · Apt 1C
Close - Heat/hot water
Entire building
Dec 29, 2015 · Apt 2C
Close
Sales history
No recorded sales in our data
Building details
- Building type
- Walk-up apartment building (C7)
- Year built
- 1930
- Floors
- 5
- Residential units
- 41
- Building area
- 33,570 ft²
- Lot area
- 9,890 ft²
- Zoning
- R7A
- Community board
- 112
- Council district
- 10
- Block / lot
- 2243 / 8
- Assessed value
- $1,902,150
- Landmark / historic district
- No
HPD registration #111947, last renewed Jul 31, 2026.
Questions about 603 Isham Street
Who owns 603 Isham Street?
The owner of record in NYC Department of City Planning PLUTO data is Alef Realty Management Co., LLC.
Does 603 Isham Street have violations?
Yes. NYC HPD has recorded 24 housing violations at this property.
Is 603 Isham Street rent stabilized?
NYC Department of Finance tax bills listed 12 rent-stabilized units here in 2024 (about 29% of its 41 apartments). To confirm a specific apartment, request its rent history from NYS Homes and Community Renewal.
When was 603 Isham Street built?
City records list 1930 as the year it was built.
How many apartments are in 603 Isham Street?
It has 41 residential units and 42 units in total.
Source: NYC Open Data (DCP PLUTO, HPD, DOB, ECB/OATH, DOF). Records can lag the city's systems. Data refreshed weekly.