Building health · BROOKLYN, NY

72 Ralph Ave

built 1931 · 3 stories · 4 apartments
Also known as 850 Madison St — one building, several doors.

Apartments named in these records

4 of this building’s 4 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

Heat and hot water

Issues on record, most recently 2023
What has happened here
2023 Jun
Low Pressure Boiler DOB violation
2023 Jun
Low Pressure Boiler DOB violation
2023 Jun
Low Pressure Boiler DOB violation
2023 Jun
Low Pressure Boiler DOB violation
2023 Apr
Low Pressure Boiler DOB violation
2019 Nov
Low Pressure Boiler DOB violation
Show 24 more
2014 Dec
Heating/ventilation permit
2013 Mar
Low Pressure Boiler never closed · DOB violation
2012 Jul
Heating/ventilation permit
2011 Dec
Low Pressure Boiler never closed · DOB violation
2009 Dec
Low Pressure Boiler never closed · DOB violation
2006 Jan
Local Law 62/91 - Boilers never closed · DOB violation
2005 Jan
Local Law 62/91 - Boilers never closed · DOB violation
2004 Feb
Local Law 62/91 - Boilers never closed · DOB violation
2003 Mar
Local Law 62/91 - Boilers never closed · DOB violation
2002 Mar
Local Law 62/91 - Boilers never closed · DOB violation
2001 Feb
Local Law 62/91 - Boilers never closed · DOB violation
2000 Feb
Local Law 62/91 - Boilers never closed · DOB violation
1999 Mar
Local Law 62/91 - Boilers never closed · DOB violation
1998 May
Local Law 62/91 - Boilers never closed · DOB violation
1997 Sep
Local Law 62/91 - Boilers never closed · DOB violation
1997 Feb
Local Law 62/91 - Boilers never closed · DOB violation
1995 Aug
Local Law 62/91 - Boilers never closed · DOB violation
1994 Jun
Local Law 62/91 - Boilers never closed · DOB violation
1993 Aug
Local Law 62/91 - Boilers never closed · DOB violation
1993 Jun
Local Law 62/91 - Boilers never closed · DOB violation
1991 Dec
Heat or hot water class C · never closed · HPD violation
1991 Dec
Heat or hot water class C · paperwork · never closed · HPD violation
1991 Dec
Heat or hot waterApt 1R class C · never closed · HPD violation
1991 Dec
Heat or hot waterApt 3R class C · never closed · HPD violation
Boiler inspection filings

Latest accepted inspection Jun 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

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

Pests and cleanliness

Older records on file

Fire and safety

Older records on file

Electrical

Older records on file

Structure and facade

Older records on file

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: Nuisance flooding (4 in. to 1 ft); 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

  • Basementno recordUnknown

General condition and all records

HPD violations

1 open: 1 about paperwork or notices. Also 46 older records from 1983–2001 never closed. 3 further violations from 2024–2025 were closed. 60 violations on record in all, 1983–2026 — the 50 most recent are listed here

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

Permit history

8 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

  • Resident complaints to the cityfoundno complaints

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
ElevatorsNot applicable
  • Elevatorsnot requiredNo elevators registered to this building
Rent and tenancyNot applicable
  • Rent stabilizationnot requiredNot on the state's list. Rent stabilization generally applies to buildings with 6 or more apartments

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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