Printed 2026-10-21 from blueflo.tech/b/521-41-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 1927 · 4 stories · 41 apartments · BIN 3018012 · BBL 3009170058
- Water service line on record as non-lead (records)
- Boiler inspection filed Jun 2026 with no defects reported
- Outside FEMA's 1% annual-chance flood zone; no mapped stormwater flooding
- No open HPD violations about building conditions from the last 10 years
- No heat or hot water complaints filed last winter
PARK SLOPE HOMES, INC, PARK SLOPE HOMES INC
Heat and hot water
1 complaint, 2024Latest accepted inspection Jun 2026, defects reported: no
What this counts
Accepted annual boiler inspection filings, any date
Latest boiler work permit 2001
What this counts
DOB boiler permits (BIS and DOB NOW); a permit dates work, not the boiler's age
- Heat sourceno recordNo boiler registration or district steam on record
- Heat and hot water complaintsfound0 heat or hot water complaints
Water and pipes
No issues on recordNon-Lead (records)
Pests and cleanliness
1 resolved in 2025Structure and facade
No issues on record- Facade ratingnot requiredNot required: facade inspections apply only to buildings taller than 6 stories
- Sidewalk shed and scaffoldingfoundNo active shed permit
- Landmark statusno recordNot in a historic district on record
Flooding
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
Above grade
Energy
ENERGY STAR score 62 (2024 report)
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
3 open: 3 about filings or paperwork
What this counts
Open DOB, ECB and DOB NOW Safety violations, any date, one per violation. ECB class 1 = hazardous, class 2 = major
1 heat or hot water
What this counts
HPD complaints received in the last 2 years; the list below is every complaint on record for the last three years
9 permits since 1990
What this counts
DOB permits issued (DOB NOW and legacy BIS), one per job and work type; excludes sheds
- HPD violationsfound0 open. 4 further violations from 2023–2025 were closed. 12 violations on record in all, 1983–2025 — the 4 most recent are listed here
Nothing on record
- 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
- Gas pipingno recordNo open gas piping filing violations. Inspection results themselves are not published
- 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.