Building record from city data · BROOKLYN, NY

204 6 Ave

Printed 2026-10-21 from blueflo.tech/b/204-6-avenue-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).

Also known as 787 Union St, 791 Union St — one building, several doors.

built 1879 · 3 stories · 6 apartments · BIN 3019807 · BBL 3009530051

Worth knowing
City records list the water service line as lead
Source: Lead Service Line Location Coordinates · as of 2026-01-30
Worth knowing
Also on record
Clean in the records
Registered with the city

Dixon Property Management, 791 Union Street LLC

Worth knowing
City records list the water service line as lead
Source: Lead Service Line Location Coordinates · as of 2026-01-30

Apartments named in these records

Apt 1 2Apt 3 1Apt 5 1

3 of this building’s 6 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.

Water and pipes

Issues on record
What has happened here
2017 Apr
Plumbing permit
2000 Jun
Plumbing permit
2000 May
Plumbing permit
1977 Oct
LeaksApt 1 class A · never closed · HPD violation
Water service line

Lead (records)

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

Heat and hot water

Older records on file
What has happened here
2017 Jul
Heating/ventilation permit
1994 Jan
Heating/ventilation permit
1993 Aug
Local Law 62/91 - Boilers never closed · DOB violation
1981 Nov
Heat or hot water class B · never closed · HPD violation
1980 Jan
Heat or hot waterApt 1 class B · never closed · HPD violation
Heat source

Boiler burning ( ), registration current since Sep 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 Nov 2025, 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

Pests and cleanliness

1 complaint, 2025
What has happened here
2025 Aug
PestsApt 3 complaint
2025 Jun
Pests class A · paperwork · closed · HPD violation
2024 Apr
Pests class A · paperwork · closed · HPD violation

Fire and safety

No issues on record
What has happened here
2000 Jun
Fire protection permit

Electrical

Older records on file
What has happened here
1981 Nov
Electrical class A · never closed · HPD violation

Structure and facade

Older records on file
What has happened here
2017 Oct
General construction permit, Construction fence permit
2017 Jul
General construction permit
2015 Apr
General construction permit
1987 Jul
Walls, floors and stairs class A · never closed · HPD violation
1981 Nov
Walls, floors and stairsApt 5 class A · never closed · HPD violation
1981 Nov
Walls, floors and stairs class A · never closed · HPD violation
Show 5 more
1981 Nov
Doors and windows class B · never closed · HPD violation
1981 Nov
Doors and windows class A · never closed · HPD violation
1981 Nov
Structure and facade class A · never closed · HPD violation
1981 Nov
Structure and facade class B · never closed · HPD violation
1981 Nov
Walls, floors and stairs class A · never closed · HPD violation
Landmark statusWhole tax lot

In the Park Slope Historic District Extension II

PLUTO (tax lot data), as of 2026-08-24
  • Facade ratingnot requiredNot required: facade inspections apply only to buildings taller than 6 stories
  • Sidewalk shed and scaffoldingno recordNo sidewalk shed permits on record

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

  • BasementfoundNo basement

Gas

What has happened here
2025 Oct
PL-PER Gas Piping - LL152 DOB violation
Gas piping

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

DOB Safety Violations, as of 2026-10-19
What this counts

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

General condition and all records

DOB violations

2 open: 2 about filings or paperwork

2025 Oct
PL-PER Gas Piping - LL152
1993 Aug
Local Law 62/91 - Boilers never closed
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 pests

2025 Aug
PestsApt 3
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

12 permits since 1990

2017 Oct
General construction permit, Construction fence permit
2017 Jul
Heating/ventilation permit, General construction permit, Plumbing permit
2015 Apr
General construction permit
2000 Jun
Plumbing permit, Fire protection permit
2000 May
Plumbing permit, Heating/ventilation permit
and 7 more at the source
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
2025 Nov
Other conditions class I · paperwork · closed · HPD violation
2024 Nov
Other conditions class I · paperwork · closed · HPD violation
2023 Nov
Other conditions class I · paperwork · closed · HPD violation
1981 Nov
Other conditions class B · never closed · HPD violation
1981 Nov
Other conditions class B · never closed · HPD violation
  • HPD violationsfound0 open. Also 14 older records from 1977–1987 never closed. 5 further violations from 2023–2025 were closed. 30 violations on record in all, 1977–2025 — the 19 most recent are listed here

Nothing on record

Rent and tenancyNot on the state list
  • Rent stabilizationno recordNot on the state's 2024 list. Owners who register late or not at all are missing, so ask HCR about a specific apartment
Energyno record
  • Energynot requiredNot required: energy reporting applies to buildings over 25,000 sq ft
ElevatorsNot applicable
  • Elevatorsnot requiredNo elevators registered to this building

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.