Building record from city data · BROOKLYN, NY

1635 Union St

Printed 2026-10-21 from blueflo.tech/b/1635-union-street-brooklyn, where it is kept current. These are city records, not an inspection by Blueflo. Every item shows its source and the date it was last checked. Not a warranty. May not be used for tenant screening (terms of use).

built 1922 · 4 stories · 30 apartments · BIN 3037536 · BBL 3013950068

Worth knowing
18 open immediately hazardous (class C) HPD violations about pests and doors and windows and lead-based paint and mold
Source: Housing Maintenance Code Violations · as of 2026-10-19
Worth knowing
Also on record
Clean in the records
Registered with the city

1635 UNION STREET REALTY LLC

Worth knowing
18 open immediately hazardous (class C) HPD violations about pests and doors and windows and lead-based paint and mold
Source: Housing Maintenance Code Violations · as of 2026-10-19

Apartments named in these records

6 of this building’s 30 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.

Heat and hot water

Older records on file
Heat source

Boiler burning No. 2 oil (Rockmills MP-60), registration current since Jun 2026

Clean Air Tracking System (boiler registrations), as of 2026-10-20 · See this building's boiler registrations on NYC Open Data →
Boiler inspection filings

Latest accepted inspection Apr 2026, defects reported: no

DOB NOW: Safety Boiler, as of 2026-10-19 · See the boiler filings at DOB →
What this counts

Accepted annual boiler inspection filings, any date

  • Boiler work permitsno recordNo boiler work permits on record
  • Heat and hot water complaintsfound0 heat or hot water complaints

Water and pipes

Issues on record, most recently 2023
Water service line

Non-Lead (records)

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

Pests and cleanliness

Issues on record, most recently 2023

Fire and safety

Issues on record, most recently 2022

Electrical

1 complaint, 2026

Structure and facade

Issues on record, most recently 2023

Flooding

No issues on record
FEMA flood zone

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

FEMA National Flood Hazard Layer, as of 2026-10-20
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

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 49 (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

66 open: 48 about building conditions — walls, floors and stairs (16), pests (9), doors and windows (8), fire safety (5); 18 immediately hazardous (class C), 18 about paperwork or notices. 12 further violations from 2023–2026 were closed. 985 violations on record in all, 2000–2026 — the 78 most recent are listed here

2026 Jun
Fire safety class B · closed
2026 May
Pests class A · paperwork
2025 Jun
Pests class A · paperwork · closed
2024 Apr
Pests class A · paperwork · closed
2023 Dec
Walls, floors and stairsApt D1 class B
2023 Dec
Walls, floors and stairsApt D1 class B
2023 Dec
Walls, floors and stairsApt D1 class A
2023 Dec
Walls, floors and stairsApt D1 class B
Show 29 more
2023 Dec
Doors and windowsApt D1 class A
2023 Dec
Walls, floors and stairsApt D1 class B
2023 Dec
Walls, floors and stairsApt D1 class B
2023 Dec
Walls, floors and stairsApt D1 class A
2023 Dec
Lead-based paintApt D1 class C · closed
2023 Dec
Lead-based paintApt D1 class C · closed
2023 Dec
Lead-based paintApt D1 class C · closed
2023 Dec
Lead-based paintApt D1 class C · closed
2023 Dec
Lead-based paintApt D1 class C · closed
2023 Dec
Lead-based paintApt D1 class C · closed
2023 Dec
Lead-based paintApt D1 class C · closed
2023 Dec
Lead-based paintApt D1 class C · closed
2023 Dec
PestsApt D1 class C · closed
2023 Mar
Doors and windowsApt D6 class B
2023 Mar
Walls, floors and stairsApt D6 class B
2023 Mar
LeaksApt D6 class B
2023 Mar
Doors and windowsApt D6 class C
2023 Mar
MoldApt D6 class C
2022 Sep
Lead-based paintApt A6 class C
2022 Sep
Lead-based paintApt A6 class C
2022 Sep
Walls, floors and stairsApt A6 class A
2022 Sep
Walls, floors and stairsApt A6 class B
2022 Sep
Walls, floors and stairsApt A6 class B
2022 Sep
Walls, floors and stairsApt A6 class B
2022 Jul
PestsApt B7 class C
2022 Jul
MoldApt B1 class B
2022 Jun
PlumbingApt D6 class A
2022 May
MoldApt D6 class C
2022 May
Doors and windowsApt D6 class B
and 29 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

5 open: 3 about building conditions, 2 about filings or paperwork

DOB Violations, as of 2026-10-19 · 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

1 electrical

Housing Maintenance Code Complaints and Problems, as of 2026-10-20 · 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

4 permits since 1990

DOB NOW: Build – Approved Permits, as of 2026-10-19 · 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
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.