Building record from city data · BROOKLYN, NY

1646 Union St

Printed 2026-10-21 from blueflo.tech/b/1646-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 1920 · 4 stories · 23 apartments · BIN 3037732 · BBL 3014010039

Worth knowing
10 open immediately hazardous (class C) HPD violations about pests and heat or hot water
Source: Housing Maintenance Code Violations · as of 2026-10-19
Worth knowing
Also on record
Clean in the records
Registered with the city

RENAISSANCE REALTY GROUP LLC, 1646 UNION LLC

Leaks: 7 reports to the city since 2024
2024Leaks · Jul 2024 · 1 report (1 complaint)Jul 15, 2024Leaks · Sep 2024 · 1 report (1 complaint)Sep 11, 2024
2025Leaks · Dec 2025 · 1 report (2 complaints)Dec 29, 2025Dec 29, 2025 (2nd)
2026Leaks · Feb 2026 · 1 report (1 complaint)Feb 18, 2026Leaks · Mar 2026 · 1 report (1 complaint)Mar 5, 2026Leaks · Jun 2026 · 1 report (1 complaint)Jun 23, 2026Leaks · Jul 2026 · 1 report (1 complaint)Jul 8, 2026
Source: HPD Complaints and Problems · as of 2026-10-21

Also reported

2024 – 2026

A filled month had a report to HPD; darker means more than one, and the past year is brightest. Tap one to read it. Complaints within a week count as one report. Records list complaints filed, not conditions found.

Apartments named in these records

Apt 1B 5Apt 1D 33Apt 1E 3Apt 2A 1Apt 2C 1Apt 2D 1Apt 2F 18Apt 3B 1Apt 3C 1Apt 4E 40

10 of this building’s 23 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
What has happened here
2026 Aug
Walls, floors and stairsApt 1D class B · HPD violation
2026 Jul
Walls, floors and stairsApt 1D class B · HPD violation
2026 Jun
Doors and windowsApt 1D class B · HPD violation
2026 Jun
Walls, floors and stairsApt 1D class C · closed · HPD violation
2026 Jun
Walls, floors and stairsApt 4E class B · HPD violation
2026 Jun
Walls, floors and stairsApt 4E class B · HPD violation
Show 14 more
2026 Jun
Walls, floors and stairsApt 4E class B · HPD violation
2026 Jun
Doors and windowsApt 4E class B · HPD violation
2026 Jun
Walls, floors and stairsApt 4E class B · HPD violation
2026 Jun
Doors and windowsApt 4E class B · HPD violation
2026 Jun
Walls, floors and stairsApt 4E class B · HPD violation
2026 May
Walls, floors and stairsApt 4E class B · HPD violation
2026 May
Doors and windowsApt 4E class B · HPD violation
2026 May
Walls, floors and stairsApt 4E class A · HPD violation
2026 May
Doors and windows class B · HPD violation
2026 May
Doors and windowsApt 4E class B · HPD violation
2024 Jan
Walls, floors and stairsApt 2F class B · closed · HPD violation
2023 Dec
Doors and windowsApt 2F class B · closed · HPD violation
2023 Jun
General construction permit
2022 Jul
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 May 2023, last expired May 2024
  • Landmark statusno recordNot in a historic district on record

Heat and hot water

3 complaints, 2024–2025 · 1 in the past year
What has happened here
2025 Oct
Heat or hot waterApt 4E complaint
2025 Jan
Heat or hot waterApt 4E complaint
2024 Dec
Heat or hot waterApt 1D complaint
2024 Apr
Heat or hot waterApt 2F class C · closed · HPD violation
2024 Apr
Heat or hot waterApt 3C complaint
2024 Apr
Heat or hot waterApt 2D complaint
Show 6 more
2024 Apr
Heat or hot waterApt 2F complaint
2024 Jan
Heat or hot waterApt 4E complaint
2024 Jan
Heat or hot waterApt 4E complaint
2023 Oct
Heat or hot water class C · closed · HPD violation
2023 Oct
Heat or hot waterApt 2A class C · closed · HPD violation
2023 Oct
Heat or hot water complaint
Heat source

Boiler burning natural gas (Laars PH-0400), registration current since Dec 2025

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 Sep 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 permits

Latest boiler work permit 2020

DOB Permit Issuance (BIS), as of 2026-10-19
What this counts

DOB boiler permits (BIS and DOB NOW); a permit dates work, not the boiler's age

Heat and hot water complaints

2 heat or hot water complaints

Housing Maintenance Code Complaints and Problems, as of 2026-10-20 · See the complaints at HPD Online →
What this counts

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

Water and pipes

Issues on record · 6 complaints, 2025–2026
What has happened here
2026 Jul
LeaksApt 1D complaint
2026 Jun
LeaksApt 1D class B · HPD violation
2026 Jun
LeaksApt 1D complaint
2026 Apr
PlumbingApt 1D complaint
2026 Mar
Plumbing, leaksApt 1D complaint
2026 Feb
LeaksApt 1B complaint
Show 8 more
2026 Feb
Plumbing permit
2025 Dec
LeaksApt 1D complaint
2024 Sep
LeaksApt 1E complaint
2024 Jul
LeaksApt 3B complaint
2024 Apr
PlumbingApt 2F complaint
2024 Jan
LeaksApt 2F class B · closed · HPD violation
2023 Nov
LeaksApt 2F complaint
2020 Jan
Plumbing permit
Water service line

Non-Lead (records)

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

Pests and cleanliness

Issues on record · 8 complaints, 2025–2026 · 6 in the past year
What has happened here
2026 Aug
PestsApt 1D class C · HPD violation
2026 Aug
MoldApt 1D class A · HPD violation
2026 Aug
MoldApt 1D complaint
2026 Jul
PestsApt 1D class C · HPD violation
2026 Jul
Mold, pestsApt 1D complaint
2026 Jun
PestsApt 1D class C · HPD violation
Show 20 more
2026 Jun
MoldApt 1D class C · closed · HPD violation
2026 Jun
MoldApt 1D complaint
2026 Jun
MoldApt 4E class B · HPD violation
2026 Jun
MoldApt 4E class A · closed · HPD violation
2026 May
MoldApt 4E class B · HPD violation
2026 May
MoldApt 4E complaint
2026 May
MoldApt 4E class B · HPD violation
2026 May
MoldApt 4E class A · closed · HPD violation
2026 May
MoldApt 1D class C · closed · HPD violation
2026 May
MoldApt 1D class B · closed · HPD violation
2026 May
Pests class A · paperwork · closed · HPD violation
2026 Apr
PestsApt 1D complaint
2026 Mar
MoldApt 1D class A · closed · HPD violation
2026 Mar
MoldApt 1D complaint
2025 Sep
PestsApt 1B class C · closed · HPD violation
2025 Sep
PestsApt 1B class C · closed · HPD violation
2025 Sep
PestsApt 1B complaint
2025 Feb
PestsApt 2C complaint
2024 Sep
MoldApt 1E complaint
2023 Oct
PestsApt 1B class C · closed · HPD violation

Fire and safety

2 resolved since 2024
What has happened here
2025 Jan
Fire safetyApt 4E class B · closed · HPD violation
2024 Jan
Fire safetyApt 2F class C · closed · HPD violation

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

Elevators

Issues on record, most recently 2025
What has happened here
2025 Oct
VT-CAT1-CO Elevators DOB violation
2025 Jul
Elevators class - 1 · DOB violation
Elevators

1 active elevator; latest periodic inspection May 2025

DOB NOW Elevator Safety Compliance, as of 2026-10-19 · 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

General condition and all records

HPD violations

51 open: 49 about building conditions — walls, floors and stairs (19), pests (9), doors and windows (8), mold (5); 10 immediately hazardous (class C), 2 about paperwork or notices. Also 1 older record from 1991 never closed. 21 further violations from 2023–2026 were closed. 695 violations on record in all, 1989–2026 — the 73 most recent are listed here

2026 Aug
PestsApt 1D class C
2026 Aug
Walls, floors and stairsApt 1D class B
2026 Aug
MoldApt 1D class A
2026 Jul
Walls, floors and stairsApt 1D class B
2026 Jul
PestsApt 1D class C
2026 Jun
Doors and windowsApt 1D class B
2026 Jun
PestsApt 1D class C
2026 Jun
LeaksApt 1D class B
Show 38 more
2026 Jun
Walls, floors and stairsApt 1D class C · closed
2026 Jun
MoldApt 1D class C · closed
2026 Jun
Walls, floors and stairsApt 4E class B
2026 Jun
Walls, floors and stairsApt 4E class B
2026 Jun
Walls, floors and stairsApt 4E class B
2026 Jun
Doors and windowsApt 4E class B
2026 Jun
MoldApt 4E class B
2026 Jun
Other conditions class A
2026 Jun
Walls, floors and stairsApt 4E class B
2026 Jun
Doors and windowsApt 4E class B
2026 Jun
Walls, floors and stairsApt 4E class B
2026 Jun
MoldApt 4E class A · closed
2026 May
Walls, floors and stairsApt 4E class B
2026 May
Doors and windowsApt 4E class B
2026 May
MoldApt 4E class B
2026 May
Walls, floors and stairsApt 4E class A
2026 May
MoldApt 4E class B
2026 May
Doors and windows class B
2026 May
Doors and windowsApt 4E class B
2026 May
MoldApt 4E class A · closed
2026 May
Smoke or CO detectorsApt 1D class B
2026 May
MoldApt 1D class C · closed
2026 May
MoldApt 1D class B · closed
2026 May
Pests class A · paperwork · closed
2026 Mar
MoldApt 1D class A · closed
2025 Sep
PestsApt 1B class C · closed
2025 Sep
PestsApt 1B class C · closed
2025 Jan
Fire safetyApt 4E class B · closed
2024 Apr
Heat or hot waterApt 2F class C · closed
2024 Jan
Walls, floors and stairsApt 2F class B · closed
2024 Jan
LeaksApt 2F class B · closed
2024 Jan
Smoke or CO detectorsApt 2F class B · closed
2024 Jan
Smoke or CO detectorsApt 2F class B · closed
2024 Jan
Fire safetyApt 2F class C · closed
2023 Dec
Doors and windowsApt 2F class B · closed
2023 Oct
Heat or hot water class C · closed
2023 Oct
Heat or hot waterApt 2A class C · closed
2023 Oct
PestsApt 1B class C · closed
and 6 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

2 open: 1 about building conditions, 1 about filings or paperwork

2025 Oct
VT-CAT1-CO Elevators
2025 Jul
Elevators class - 1
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

9 general repairs, 7 paint or plaster, 6 leaks, 5 mold, 4 doors or windows, 4 pests, 3 heat or hot water, 2 floors or stairs, 2 plumbing, 1 safety

2026 Aug
Paint or plaster, moldApt 1D
2026 Jul
Paint or plaster, mold, pests, leaksApt 1D
2026 Jun
Paint or plaster, mold, leaksApt 1D
2026 Jun
Floors or stairs, general repairs, paint or plasterApt 4E
2026 May
Doors or windows, floors or stairs, general repairs, paint or plaster, moldApt 4E
2026 Apr
General repairsApt 4E
2026 Apr
Paint or plasterApt 4E
2026 Apr
General repairsApt 4E
Show 30 more
2026 Apr
General repairsApt 4E
2026 Apr
Plumbing, pestsApt 1D
2026 Mar
Doors or windows, paint or plaster, plumbing, mold, leaksApt 1D
2026 Mar
General repairsApt 4E
2026 Feb
LeaksApt 1B
2026 Feb
General repairsApt 4E
2026 Feb
General repairsApt 4E
2026 Feb
General repairsApt 4E
2025 Dec
LeaksApt 1D
2025 Oct
Heat or hot waterApt 4E
2025 Sep
PestsApt 1B
2025 Mar
Doors or windows, safetyApt 4E
2025 Feb
PestsApt 2C
2025 Jan
Doors or windowsApt 4E
2025 Jan
Heat or hot waterApt 4E
2024 Dec
Heat or hot waterApt 1D
2024 Sep
Paint or plaster, mold, leaksApt 1E
2024 Jul
LeaksApt 3B
2024 Apr
Heat or hot waterApt 3C
2024 Apr
Heat or hot waterApt 2D
2024 Apr
Doors or windows, heat or hot water, plumbingApt 2F
2024 Jan
Heat or hot waterApt 4E
2024 Jan
Doors or windowsApt 2F
2024 Jan
Heat or hot waterApt 4E
2024 Jan
Doors or windows, paint or plasterApt 2F
2023 Dec
Paint or plasterApt 2F
2023 Dec
Doors or windowsApt 2F
2023 Nov
Doors or windowsApt 2F
2023 Nov
LeaksApt 2F
2023 Oct
Heat or hot water
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

6 permits since 1990

2026 Feb
Plumbing permit
2023 Jun
General construction permit
2023 May
Supported scaffold permit
2022 Jul
General construction permit
2020 Jan
Plumbing permit
2020 Jan
Boiler equipment permit
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

Everything else on record
2026 Aug
Paint or plasterApt 1D complaint
2026 Jul
Paint or plasterApt 1D complaint
2026 Jun
Paint or plasterApt 1D complaint
2026 Jun
Floors or stairs, general repairs, paint or plasterApt 4E complaint
2026 Jun
Other conditions class A · HPD violation
2026 May
Doors or windows, floors or stairs, general repairs, paint or plasterApt 4E complaint
Show 23 more
2026 May
Smoke or CO detectorsApt 1D class B · HPD violation
2026 Apr
General repairsApt 4E complaint
2026 Apr
Paint or plasterApt 4E complaint
2026 Apr
General repairsApt 4E complaint
2026 Apr
General repairsApt 4E complaint
2026 Mar
Doors or windows, paint or plasterApt 1D complaint
2026 Mar
General repairsApt 4E complaint
2026 Feb
General repairsApt 4E complaint
2026 Feb
General repairsApt 4E complaint
2026 Feb
General repairsApt 4E complaint
2025 Mar
Doors or windows, safetyApt 4E complaint
2025 Jan
Doors or windowsApt 4E complaint
2024 Sep
Paint or plasterApt 1E complaint
2024 Apr
Doors or windowsApt 2F complaint
2024 Jan
Doors or windowsApt 2F complaint
2024 Jan
Smoke or CO detectorsApt 2F class B · closed · HPD violation
2024 Jan
Smoke or CO detectorsApt 2F class B · closed · HPD violation
2024 Jan
Doors or windows, paint or plasterApt 2F complaint
2023 Dec
Paint or plasterApt 2F complaint
2023 Dec
Doors or windowsApt 2F complaint
2023 Nov
Doors or windowsApt 2F complaint
2023 May
Supported scaffold permit
2020 Jan
Boiler equipment permit

Nothing on record

Gasno record
  • Gas pipingno recordNo open gas piping filing violations. Inspection results themselves are not published
Energyno record
  • Energynot requiredNot required: energy reporting applies to buildings over 25,000 sq ft

Sources

23 datasets

FEMA

NYC DCP

NYC DEP

NYC DEP / Mayor's Office

NYC DOB

NYC DOB / Mayor's Office

NYC HPD

NYC OTI

NYC Rent Guidelines Board / NYS HCR

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