Building health · MANHATTAN, NY

264 Sherman Ave

built 1930 · 6 stories · 61 apartments
Also known as 521 Isham St — one building, several doors.
Registered with the city: Bronstein Properties LLC · 24 other buildings here list it; Isham 521, LLC; ISHAM 521 LLC

Apartments named in these records

17 of this building’s 61 apartments are named in a city record. The rest have no record naming them, which is the usual case.

These are city records about an apartment, not about anyone who lives or lived there. They may not be used to screen a tenant.

Fire and safety

Issues on record

Structure and facade

Issues on record
What has happened here
2026 Oct
Walls, floors and stairsApt 5E class B · HPD violation
2026 Jul
Walls, floors and stairsApt 3B class A · HPD violation
2026 May
Walls, floors and stairsApt 4G class B · closed · HPD violation
2026 May
Walls, floors and stairsApt 4G class B · closed · HPD violation
2026 Apr
Walls, floors and stairsApt 2B class B · closed · HPD violation
2026 Apr
Walls, floors and stairsApt 2B class B · closed · HPD violation
Show 23 more
2026 Apr
Walls, floors and stairsApt 2B class B · closed · HPD violation
2026 Apr
Walls, floors and stairsApt 2B class B · closed · HPD violation
2025 Nov
Doors and windowsApt 3B class C · HPD violation
2025 Nov
Doors and windowsApt 3B class C · HPD violation
2025 Nov
Walls, floors and stairsApt 3B class A · closed · HPD violation
2025 Nov
Walls, floors and stairsApt 3B class A · closed · HPD violation
2025 Nov
Walls, floors and stairsApt 3B class B · closed · HPD violation
2025 Nov
Walls, floors and stairsApt 3B class B · closed · HPD violation
2025 Nov
Doors and windowsApt 3B class B · closed · HPD violation
2025 Nov
Walls, floors and stairsApt 3B class B · closed · HPD violation
2025 Nov
Walls, floors and stairsApt 3B class B · closed · HPD violation
2025 Nov
Walls, floors and stairsApt 3B class A · closed · HPD violation
2025 Nov
Doors and windowsApt 3B class C · closed · HPD violation
2025 Nov
Doors and windowsApt 3B class C · closed · HPD violation
2025 Nov
Doors and windowsApt 3B class B · closed · HPD violation
2025 Jun
Walls, floors and stairsApt 3B class A · HPD violation
2021 Mar
Construction DOB violation
2019 Apr
General construction permit
2018 Jan
General construction permit
2018 Jan
General construction permit
2017 Sep
General construction permit
2016 Mar
Construction class - 1 · never closed · DOB violation
2015 Apr
General construction permit
  • Facade ratingnot requiredNot required: facade inspections apply only to buildings taller than 6 stories
  • Sidewalk shed and scaffoldingfoundNo active shed permit; permits since Apr 2019, last expired Jan 2020
  • Landmark statusno recordNot in a historic district on record

Flooding

Issues on record
FEMA flood zone

Outside FEMA's 1% annual-chance flood zone: X

FEMA National Flood Hazard Layer, as of 2026-10-21
What this counts

Effective FIRM zones touching the building footprint

Stormwater flooding

Extreme storm, 2080 sea levels: Deep and contiguous flooding (1 ft+); Moderate storm, 2050 sea levels: Not in mapped flooding; Moderate storm, today's sea levels: Not in mapped flooding; Limited storm, today's sea levels: Not loaded (file format unreadable)

NYC Stormwater Flood Maps, as of 2024-07-03
What this counts

Mapped ponding touching the building footprint

BasementWhole tax lot

Below grade

PLUTO (tax lot data), as of 2026-08-24

Heat and hot water

Issues on record · 21 complaints, 2024–2026 · 13 in the past year
Heat source

Boiler burning No. 4 oil (Rockmills MP-90), registration expired since Dec 2022

Clean Air Tracking System (boiler registrations), as of 2026-10-21 · See this building's boiler registrations on NYC Open Data →
Boiler inspection filings

Latest accepted inspection Jan 2026, defects reported: no

DOB NOW: Safety Boiler, as of 2026-10-21 · See the boiler filings at DOB →
What this counts

Accepted annual boiler inspection filings, any date

Heat and hot water complaints

11 heat or hot water complaints

Housing Maintenance Code Complaints and Problems, as of 2026-10-21 · See the complaints at HPD Online →
What this counts

HPD complaints, heat season 2025–26 (Oct 1–May 31)

  • Boiler work permitsno recordNo boiler work permits on record

Water and pipes

Issues on record · 9 complaints, 2024–2026 · 6 in the past year

Pests and cleanliness

Issues on record · 6 complaints, 2025–2026

Electrical

3 complaints, 2025–2026 · 1 in the past year

Rent and tenancy

On the state list
Rent stabilization

On the state's list of buildings with at least one rent-stabilized apartment (2024 registrations)

Rent Stabilized Building Lists (2024 HCR registrations), as of 2025-11-30
What this counts

The list doesn't say which apartments are stabilized, and being listed isn't proof of current status. For a specific apartment, request its rent history from HCR

Energy

Energy

ENERGY STAR score 87 (2024 report)

Energy and Water Data Disclosure (Local Law 84), as of 2025-11-25
What this counts

Letter grades are issued by the city under Local Law 33 and posted near the building entrance; Blueflo shows the reported score only

General condition and all records

HPD violations

19 open: 19 about building conditions — walls, floors and stairs (3), doors and windows (2), fire safety (2), heat or hot water (2); 7 immediately hazardous (class C). Also 1 older record from 2012 never closed. 25 further violations from 2025–2026 were closed. 231 violations on record in all, 1984–2026 — the 79 most recent are listed here

2026 Oct
Walls, floors and stairsApt 5E class B
2026 Oct
LeaksApt 5E class B
2026 Oct
Other conditionsApt 5E class B
2026 Jul
Smoke or CO detectorsApt 4G class B
2026 Jul
Smoke or CO detectorsApt 4G class B
2026 Jul
Walls, floors and stairsApt 3B class A
2026 Jul
MoldApt 3B class A
2026 Jul
Fire safetyApt 3B class C
Show 37 more
2026 Jul
Heat or hot waterApt 3J class A
2026 Jul
Heat or hot waterApt 3J class A
2026 Jul
MoldApt 3J class C
2026 Jul
Fire safetyApt 1G class C · closed
2026 May
Walls, floors and stairsApt 4G class B · closed
2026 May
Walls, floors and stairsApt 4G class B · closed
2026 May
LeaksApt 4G class B · closed
2026 Apr
Walls, floors and stairsApt 2B class B · closed
2026 Apr
Other conditionsApt 2B class B · closed
2026 Apr
Other conditionsApt 2B class B · closed
2026 Apr
Walls, floors and stairsApt 2B class B · closed
2026 Apr
Walls, floors and stairsApt 2B class B · closed
2026 Apr
Walls, floors and stairsApt 2B class B · closed
2026 Apr
LeaksApt 2B class B · closed
2026 Mar
Heat or hot waterApt 3H class C · closed
2025 Nov
Doors and windowsApt 3B class C
2025 Nov
Doors and windowsApt 3B class C
2025 Nov
PestsApt 3B class C
2025 Nov
Walls, floors and stairsApt 3B class A · closed
2025 Nov
Walls, floors and stairsApt 3B class A · closed
2025 Nov
Walls, floors and stairsApt 3B class B · closed
2025 Nov
Walls, floors and stairsApt 3B class B · closed
2025 Nov
Doors and windowsApt 3B class B · closed
2025 Nov
Other conditionsApt 3B class B · closed
2025 Nov
Walls, floors and stairsApt 3B class B · closed
2025 Nov
Walls, floors and stairsApt 3B class B · closed
2025 Nov
Walls, floors and stairsApt 3B class A · closed
2025 Nov
Doors and windowsApt 3B class C · closed
2025 Nov
Doors and windowsApt 3B class C · closed
2025 Nov
Doors and windowsApt 3B class B · closed
2025 Oct
MoldApt 3J class B · closed
2025 Oct
Fire safetyApt 3B class C
2025 Jun
Other conditionsApt 3B class B
2025 Jun
Walls, floors and stairsApt 3B class A
2025 Jun
PlumbingApt 3B class B
2023 Jan
PestsApt 1G class C
2012 Jun
Fire safetyApt 3G class B · never closed
Housing Maintenance Code Violations, as of 2026-10-21 · Read these violations in full at HPD Online →
What this counts

Open HPD violations inspected in the last 10 years; class C = immediately hazardous. Paperwork = failure to file, notify or certify

DOB violations

3 open: 1 about building conditions, 2 older than 10 years

DOB Violations, as of 2026-10-21 · Read these violations in full at DOB →
What this counts

Open DOB, ECB and DOB NOW Safety violations, any date, one per violation. ECB class 1 = hazardous, class 2 = major

Resident complaints to the city

21 heat or hot water, 21 paint or plaster, 10 doors or windows, 8 floors or stairs, 8 plumbing, 6 appliances, 6 mold, 4 electrical, 4 general repairs, 3 leaks, 3 pests, 1 safety

2026 Oct
Heat or hot water, plumbingApt 4K
2026 Oct
Plumbing, moldApt 5E
2026 Sep
Heat or hot water
2026 Aug
Paint or plaster, leaksApt 4H
2026 Jul
Appliances, doors or windows, floors or stairs, general repairs, paint or plaster, mold, pestsApt 3B
2026 May
Doors or windows, electrical, floors or stairs, paint or plaster, mold, pestsApt 3B
2026 May
Paint or plaster, plumbing, safety, moldApt 4G
2026 Apr
Paint or plaster, leaksApt 2B
Show 39 more
2026 Mar
Heat or hot water
2026 Feb
Heat or hot water
2026 Jan
Heat or hot water
2026 Jan
Heat or hot water
2025 Dec
Heat or hot water
2025 Nov
Heat or hot water
2025 Nov
Appliances, floors or stairs, paint or plaster, mold, pestsApt 3B
2025 Nov
Heat or hot water
2025 Nov
Heat or hot water
2025 Nov
Heat or hot waterApt 3B
2025 Nov
Doors or windows, floors or stairs, paint or plaster, moldApt 3B
2025 Nov
Heat or hot waterApt 5E
2025 Oct
Heat or hot waterApt 2H
2025 Oct
Floors or stairs, general repairs, paint or plaster, plumbingApt 3J
2025 Oct
Appliances, doors or windows, floors or stairs, paint or plasterApt 3B
2025 Oct
Appliances, doors or windows, paint or plasterApt 3B
2025 Oct
Electrical, floors or stairs, general repairs, paint or plaster, plumbingApt 3J
2025 Sep
Heat or hot waterApt 5B
2025 Aug
AppliancesApt 4J
2025 Jul
Paint or plasterApt 4H
2025 Jul
LeaksApt 4H
2025 Jun
Appliances, electrical, floors or stairs, general repairs, paint or plasterApt 3B
2025 Jan
Heat or hot water
2025 Jan
Heat or hot water
2025 Jan
Heat or hot water
2025 Jan
Heat or hot water
2024 Dec
Heat or hot water, paint or plaster, plumbingApt 2B
2024 Oct
Heat or hot waterApt 5B
2024 Oct
Heat or hot waterApt 5B
2024 Aug
PestsApt 3B
2024 Aug
Paint or plasterApt 3B
2024 Aug
ElectricalApt 3B
2024 Aug
AppliancesApt 3B
2024 May
Plumbing, leaksApt 5G
2024 Mar
Heat or hot waterApt 4B
2024 Mar
Doors or windows, general repairs, leaksApt 4A
2024 Jan
Heat or hot waterApt 1G
2024 Jan
Heat or hot waterApt 2G
2023 Nov
Heat or hot water
Housing Maintenance Code Complaints and Problems, as of 2026-10-21 · See the complaints at HPD Online →
What this counts

HPD complaints received in the last 2 years; the list below is every complaint on record for the last three years

Permit history

15 permits since 1990

DOB NOW: Build – Approved Permits, as of 2026-10-21 · See every permit at DOB →
What this counts

DOB permits issued (DOB NOW and legacy BIS), one per job and work type; excludes sheds

Everything else on record
2026 Oct
Other conditionsApt 5E class B · HPD violation
2026 Aug
Paint or plasterApt 4H complaint
2026 Jul
Smoke or CO detectorsApt 4G class B · HPD violation
2026 Jul
Smoke or CO detectorsApt 4G class B · HPD violation
2026 Jul
Appliances, doors or windows, floors or stairs, general repairs, paint or plasterApt 3B complaint
2026 May
Doors or windows, floors or stairs, paint or plasterApt 3B complaint
Show 19 more
2026 May
Paint or plaster, safetyApt 4G complaint
2026 Apr
Other conditionsApt 2B class B · closed · HPD violation
2026 Apr
Other conditionsApt 2B class B · closed · HPD violation
2026 Apr
Paint or plasterApt 2B complaint
2025 Nov
Other conditionsApt 3B class B · closed · HPD violation
2025 Nov
Appliances, floors or stairs, paint or plasterApt 3B complaint
2025 Nov
Doors or windows, floors or stairs, paint or plasterApt 3B complaint
2025 Oct
Floors or stairs, general repairs, paint or plasterApt 3J complaint
2025 Oct
Appliances, doors or windows, floors or stairs, paint or plasterApt 3B complaint
2025 Oct
Appliances, doors or windows, paint or plasterApt 3B complaint
2025 Oct
Floors or stairs, general repairs, paint or plasterApt 3J complaint
2025 Aug
AppliancesApt 4J complaint
2025 Jul
Paint or plasterApt 4H complaint
2025 Jun
Other conditionsApt 3B class B · HPD violation
2025 Jun
Appliances, floors or stairs, general repairs, paint or plasterApt 3B complaint
2024 Dec
Paint or plasterApt 2B complaint
2024 Aug
Paint or plasterApt 3B complaint
2024 Aug
AppliancesApt 3B complaint
2024 Mar
Doors or windows, general repairsApt 4A complaint
  • Salesno recordNo recorded sale since 2016

Nothing on record

Gasno record
  • Gas pipingno recordNo open gas piping filing violations. Inspection results themselves are not published
ElevatorsNot applicable
  • Elevatorsnot requiredNo elevators registered to this building

Sources

24 datasets

Each date is when we last checked that dataset, not when the record itself was created.

Every row shows the record it came from and the date it was last checked.
These are city records, not an inspection by Blueflo. Every item shows its source and the date it was last checked.
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