Building health · MANHATTAN, NY

42 Thayer St

built 1939 · 6 stories · 37 apartments

Apartments named in these records

11 of this building’s 37 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.

Structure and facade

Issues on record

Heat and hot water

Issues on record · 4 complaints, 2026
Heat source

Boiler burning natural gas (Federal FST-70), registration expired since Apr 2023

Clean Air Tracking System (boiler registrations), as of 2026-10-19 · See this building's boiler registrations on NYC Open Data →
Boiler inspection filings

Latest accepted inspection Jun 2026, defects reported: no

DOB NOW: Safety Boiler, as of 2026-10-17 · See the boiler filings at DOB →
What this counts

Accepted annual boiler inspection filings, any date

Heat and hot water complaints

5 heat or hot water complaints

Housing Maintenance Code Complaints and Problems, as of 2026-10-19 · 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 · 3 complaints, 2025–2026 · 2 in the past year

Pests and cleanliness

Issues on record · 2 complaints, 2026

Fire and safety

Issues on record, most recently 2025

Electrical

1 resolved in 2024

Flooding

No issues on record
FEMA flood zone

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

FEMA National Flood Hazard Layer, as of 2026-10-19
What this counts

Effective FIRM zones touching the building footprint

Stormwater flooding

Extreme storm, 2080 sea levels: Not in mapped flooding; 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

Elevators

1 complaint, 2026
What has happened here
Elevators

1 active elevator; latest periodic inspection Jul 2026

DOB NOW Elevator Safety Compliance, as of 2026-10-18 · See this building's elevators on NYC Open Data →
What this counts

Active elevator devices registered to this building ID

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 47 (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

60 open: 60 about building conditions — walls, floors and stairs (16), leaks (11), mold (11), heat or hot water (6); 11 immediately hazardous (class C). Also 3 older records from 2011 never closed. 14 further violations from 2023–2026 were closed. 143 violations on record in all, 1993–2026 — the 77 most recent are listed here

2026 May
MoldApt 2B class C
2026 May
Walls, floors and stairsApt 2B class B · closed
2026 May
Doors and windowsApt 2B class B · closed
2026 May
Doors and windowsApt 2B class B · closed
2026 May
LeaksApt 2B class B · closed
2026 May
MoldApt 2B class C
2026 May
MoldApt 2B class B
2026 May
Doors and windowsApt 2B class B
Show 31 more
2026 May
Walls, floors and stairsApt 2B class B
2026 May
LeaksApt 2B class B
2026 Feb
Heat or hot waterApt 1F class C
2026 Feb
Heat or hot waterApt 2D class C
2026 Feb
Heat or hot waterApt 2D class C
2026 Feb
Heat or hot water class C · closed
2026 Feb
Heat or hot waterApt 4C class C
2026 Jan
Heat or hot waterApt 3C class C
2026 Jan
Heat or hot waterApt 3C class C
2025 Jun
Walls, floors and stairsApt 4F class A
2025 Jun
Fire safety class A
2025 Jun
Walls, floors and stairs class A · closed
2025 Jun
Fire safety class B · closed
2025 Jun
Leaks class B · closed
2024 Sep
MoldApt 2D class B
2024 Sep
Doors and windowsApt 2D class B
2024 Sep
PlumbingApt 2D class B
2024 Sep
MoldApt 2D class B
2024 Sep
PestsApt 4D class C
2024 Sep
Walls, floors and stairsApt 4D class B
2024 Sep
LeaksApt 4D class B
2024 Sep
Electrical class A · closed
2024 Sep
Walls, floors and stairsApt 4D class B · closed
2024 Sep
Walls, floors and stairsApt 4D class B · closed
2024 Apr
Smoke or CO detectorsApt 6A class B
2024 Apr
Smoke or CO detectorsApt 6A class B
2024 Apr
LeaksApt 6A class B
2024 Apr
LeaksApt 6A class B
2023 Nov
Walls, floors and stairsApt 4A class A · closed
2023 Nov
MoldApt 4A class A · closed
2023 Nov
MoldApt 4A class A · closed
and 24 more at the source
Housing Maintenance Code Violations, as of 2026-10-19 · 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, 1 about filings or paperwork, 1 older than 10 years

DOB Violations, as of 2026-10-18 · 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

Permit history

1 permits since 1990

DOB NOW: Build – Approved Permits, as of 2026-10-17 · See every permit at DOB →
What this counts

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

Nothing on record

Gasno record
  • Gas pipingno recordNo open gas piping filing violations. Inspection results themselves are not published

Sources

23 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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Not an inspection and not a warranty. May not be used for tenant screening — terms of use · privacy.