Printed 2026-10-21 from blueflo.tech/b/512-48-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 1905 · 4 stories · 8 apartments · BIN 3012640 · BBL 3007750011
- 27 open immediately hazardous (class C) HPD violations about fire safety and doors and windows and pests and walls, floors and stairs and gas and leaks and mold and structure and facade
- 7 hazardous (class 1) building code violations from 2026 are still open
- 75 open HPD violations about building conditions
- On the state's list of buildings with rent-stabilized apartments (2024 registrations)
- In the Central Sunset Park Historic District: exterior changes need Landmarks Commission approval
- Water service line on record as non-lead (records)
- Outside FEMA's 1% annual-chance flood zone; no mapped stormwater flooding
- No heat or hot water complaints filed last winter
OMG MGMT INC, X. D. YANG & SON LLC, X.D. YANG & SON, LLC
Also reported
2024 – 2026- Pests2 reports2024Pests · Apr 2024 · 1 report (1 complaint)Apr 18, 20242025Pests · Dec 2025 · 1 report (1 complaint)Dec 27, 20252026
- Leaks2 reports20242025Leaks · Dec 2025 · 2 reports (3 complaints)Dec 14, 2025Dec 14, 2025 (2nd)Dec 27, 20252026
- Doors or windows3 reports2024Doors or windows · Apr 2024 · 1 report (1 complaint)Apr 18, 20242025Doors or windows · Dec 2025 · 2 reports (2 complaints)Dec 14, 2025Dec 27, 20252026
- Electrical2 reports2024Electrical · Apr 2024 · 1 report (1 complaint)Apr 18, 20242025Electrical · Sep 2025 · 1 report (1 complaint)Sep 23, 20252026
Show 2 more: Paint or plaster, Unsanitary conditions
- Paint or plaster2 reports2024Paint or plaster · Apr 2024 · 1 report (1 complaint)Apr 18, 20242025Paint or plaster · Dec 2025 · 1 report (1 complaint)Dec 14, 20252026
- Unsanitary conditions2 reports20242025Unsanitary conditions · May 2025 · 1 report (1 complaint)May 8, 2025Unsanitary conditions · Sep 2025 · 1 report (1 complaint)Sep 23, 20252026
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
City records name 10 apartment labels, more than the 8 apartments the city lists for this building, so some are likely the same apartment written differently.
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
Issues on recordLatest accepted inspection Oct 2025, defects reported: yes
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
Fire and safety
Issues on recordShow 9 more
Structure and facade
Issues on recordShow 12 more
In the Central Sunset Park Historic District
- Facade ratingnot requiredNot required: facade inspections apply only to buildings taller than 6 stories
- Sidewalk shed and scaffoldingno recordNo sidewalk shed permits on record
Water and pipes
Issues on record · 2 complaints, 2025Non-Lead (records)
Pests and cleanliness
4 complaints, 2025 · 2 in the past yearElectrical
1 complaint, 2025Flooding
No issues on recordOutside FEMA's 1% annual-chance flood zone: X
What this counts
Effective FIRM zones touching the building footprint
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)
What this counts
Mapped ponding touching the building footprint
Below grade
Rent and tenancy
On the state listOn the state's list of buildings with at least one rent-stabilized apartment (2024 registrations)
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 pipingno recordNo open gas piping filing violations. Inspection results themselves are not published
General condition and all records
83 open: 75 about building conditions — fire safety (15), smoke or CO detectors (12), walls, floors and stairs (11), mold (6); 27 immediately hazardous (class C), 8 about paperwork or notices. Also 34 older records from 2003–2016 never closed. 11 further violations from 2023–2025 were closed. 165 violations on record in all, 2003–2026 — the 128 most recent are listed here
Show 28 more
What this counts
Open HPD violations inspected in the last 10 years; class C = immediately hazardous. Paperwork = failure to file, notify or certify
30 open: 21 about building conditions, 6 about filings or paperwork, 3 older than 10 years
Show 17 more
What this counts
Open DOB, ECB and DOB NOW Safety violations, any date, one per violation. ECB class 1 = hazardous, class 2 = major
3 leaks, 2 doors or windows, 2 mold, 2 unsanitary conditions, 1 electrical, 1 paint or plaster, 1 pests
What this counts
HPD complaints received in the last 2 years; the list below is every complaint on record for the last three years
5 permits since 1990
What this counts
DOB permits issued (DOB NOW and legacy BIS), one per job and work type; excludes sheds
Show 7 more
Nothing on record
- Energynot requiredNot required: energy reporting applies to buildings over 25,000 sq ft
- Elevatorsnot requiredNo elevators registered to this building
Sources
23 datasetsFEMA
- FEMA National Flood Hazard Layer2026-10-20
- OpenFEMA NFIP Redacted Claims (v3)2026-09-09
NYC DCP
- NYC GeoSearch (address directory)2026-10-20
- PLUTO (tax lot data)2026-08-24
NYC DEP
NYC DEP / Mayor's Office
- NYC Stormwater Flood Maps2024-07-03
NYC DOB
- DOB NOW Elevator Safety Compliance2026-10-19
- DOB NOW: Build – Approved Permits2026-10-19
- DOB NOW: Safety Boiler2026-10-19
- DOB NOW: Safety – Facades Compliance Filings2026-10-19
- DOB Permit Issuance (BIS)2026-10-19
- DOB Safety Violations2026-10-19
- DOB Violations2026-10-19
NYC DOB / Mayor's Office
NYC HPD
- Buildings Subject to HPD Jurisdiction2026-08-12
- Housing Maintenance Code Complaints and Problems2026-10-20
- Housing Maintenance Code Violations2026-10-19
- Multiple Dwelling Registrations2026-08-12
- Registration Contacts2026-08-12
NYC OTI
- AddressPoint2026-07-07
- Building Footprints2026-10-19
NYC Rent Guidelines Board / NYS HCR
Each date is when we last checked that dataset, not when the record itself was created.