Building health · MANHATTAN, NY

21 Thompson St

built 1900 · 6 stories · 20 apartments
Also known as 32 Grand St — one building, several doors.

Apartments named in these records

2 of this building’s 20 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.

Flooding

Issues on record
FEMA flood zone

In a FEMA special flood hazard area: AE

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: Deep and contiguous flooding (1 ft+); Moderate storm, 2050 sea levels: Deep and contiguous flooding (1 ft+); Moderate storm, today's sea levels: Deep and contiguous flooding (1 ft+); 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

Older records on file
  • Heat sourceno recordNo boiler registration or district steam on record
  • Boiler inspection filingsno recordNo boiler filings under this building's ID
  • Boiler work permitsno recordNo boiler work permits on record
  • Heat and hot water complaintsfound0 heat or hot water complaints

Water and pipes

No issues on record
What has happened here
Water service lineWhole tax lot

Non-Lead (field inspection)

Lead Service Line Location Coordinates, as of 2026-01-30

Fire and safety

Older records on file

Structure and facade

No issues on record
  • Facade ratingnot requiredNot required: facade inspections apply only to buildings taller than 6 stories
  • Sidewalk shed and scaffoldingfoundNo active shed permit; permits since Mar 2017, last expired Mar 2018
  • Landmark statusno recordNot in a historic district on record

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). Listed under the J-51 tax program, so stabilization can end when the exemption does

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

Gas

Gas piping

Open violation for not filing the periodic gas piping inspection (2025)

DOB Safety Violations, as of 2026-10-18
What this counts

Paperwork violation: the filing is missing, which is not a finding about the pipes

General condition and all records

DOB violations

1 open: 1 about filings or paperwork

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

  • HPD violationsfound0 open. Also 4 older records from 2006–2015 never closed. 27 violations on record in all, 1991–2023 — the 4 most recent are listed here
  • Resident complaints to the cityfoundno complaints. None in the last 2 years, but 1 earlier complaint on record from 2023

Nothing on record

Energyno record
  • Energyno recordNo energy score on record
ElevatorsNot applicable
  • Elevatorsnot requiredNo elevators registered to this building

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.
Report an error · Talk to us · Look up another building
Not an inspection and not a warranty. May not be used for tenant screening — terms of use · privacy.