504 Flatbush Avenue
504 Flatbush Avenue in Prospect Lefferts Gardens, Brooklyn, has 25 open HPD violations, 4 of them class C, and no rent-stabilized units are on its tax bill, as of Oct 26, 2026. StreetSpy grade: F (47/100).
Mixed residential & commercial · 5 units · Built 1925
StreetSpy grade: F (Severe, 47/100)
- 4 immediately hazardous violations open (the class that covers no heat, pests, lead paint and similar).
- No rent-stabilized units on the tax bill. Increases aren't capped by stabilization, though Good Cause Eviction may still limit them.
More open violations per unit than 8 in 10 Brooklyn buildings this size.
- Repairs: High (25 open, 4 class C), records as of Oct 26, 2026
- Heat and hot water: 1 complaint, 12 mo, records as of Oct 25, 2026
- Pests: Clear (No bedbug filing, 3 yr), records as of Oct 28, 2026
- Safety: High (2 open DOB violations), records as of Oct 26, 2026
- Registration: Expired Nov 1, 2020, records as of Oct 3, 2026
Housing code violations (HPD)
25 open violations: 4 class C (immediately hazardous), 5 class B, 16 class A. 2 issued in the last 12 months. 42 on record. Oldest open violation issued 2011-11-25. Newest violation issued 2026-05-07.
HPD recorded no violation closed here in the last 12 months.
- Class C: Mice, throughout the apartment, 3rd floor. HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF MICE IN THE ENTIRE APARTMENT LOCATED AT APT 3F, 3rd STORY, 1st APARTMENT FROM WEST AT NORTH (apt 3F), issued 2022-10-28. HPD violation 15450613
- Class C: No heat / heating defect (hallway). PROVIDE READY ACCESS TO BUILDINGS HEATING SYSTEM DOOR LOCKED. FROM 1ST STORY PUBLIC HALL TO CELLAR AT BOILER ROOM, issued 2022-10-28. HPD violation 15450610
- Class C: Self-closing door not working, 3rd floor. , 27-2007, 27-2041.1 HMC: REPLACE OR REPAIR THE SELF-CLOSING DOORS THAT IS MISSING OR DEFECTIVE .. IN THE ENTRANCE LOCATED AT APT 3F, 3rd STORY, 1st APARTMENT FROM WEST AT NORTH (apt 3F), issued 2022-10-28. HPD violation 15450614
- Class C: Self-closing door not working, 3rd floor. , 27-2007, 27-2041.1 HMC: REPLACE OR REPAIR THE SELF-CLOSING DOORS THAT IS MISSING OR DEFECTIVE IN THE ENTRANCE LOCATED AT APT 3F, 3rd STORY, 1st APARTMENT FROM WEST AT NORTH (apt 3F), issued 2022-06-09. HPD violation 15195973
- Class B: Missing or broken smoke / CO detector, throughout the apartment, 3rd floor. REPAIR OR REPLACE THE SMOKE DETECTOR DEFECTIVE IN THE ENTIRE APARTMENT LOCATED AT APT 3F, 3rd STORY, 1st APARTMENT FROM WEST AT NORTH (apt 3F), issued 2022-10-28. HPD violation 15450611
- Class B: Missing or broken smoke / CO detector, throughout the apartment, 3rd floor. HMC: REPAIR OR REPLACE THE CARBON MONOXIDE DETECTING DEVICE(S). DEFECTIVE IN THE ENTIRE APARTMENT LOCATED AT APT 3F, 3rd STORY, 1st APARTMENT FROM WEST AT NORTH (apt 3F), issued 2022-10-28. HPD violation 15450612
- Class B: Damaged plaster or paint, ceiling, kitchen, 3rd floor. REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN A UNIFORM COLOR THE CEILING IN THE KITCHEN LOCATED AT APT 3F, 3rd STORY, 1st APARTMENT FROM WEST AT NORTH (apt 3F), issued 2022-06-09. HPD violation 15195970
- Class B: Missing or broken smoke / CO detector, throughout the apartment, 3rd floor. REPAIR OR REPLACE THE SMOKE DETECTOR DEFECTIVE IN THE ENTIRE APARTMENT LOCATED AT APT 3F, 3rd STORY, 1st APARTMENT FROM WEST AT NORTH (apt 3F), issued 2022-06-09. HPD violation 15195972
311 housing complaints
1 in the last 12 months, 5 in 5 years. Most common: Heat/Hot Water (1).
Bedbugs
No bedbug filing on record for the last 3 years. HPD's bedbug filings are self-reported by the owner once a year; HPD does not inspect to confirm them.
- 2026: No bedbug filing on record for this year
- 2025: No bedbug filing on record for this year
- 2024: No bedbug filing on record for this year
- 2023: No bedbug filing on record for this year
- 2022: No bedbug filing on record for this year
- 2021: No bedbug filing on record for this year
Buildings department (DOB)
2 open DOB violations. 2 DOB violations on record. Check on DOB BIS.
Evictions and housing court
0 executed evictions in the last 3 years (0 on record). 0 open HPD cases; 0 harassment findings.
Rent stabilization
No rent-stabilized units on the tax bill.
Owner and management
Owner: 504 FLATBUSH AVE INC. Head officer: JOHN BARRETT. Managing agent: JOHN BARRETT. See the full portfolio.
Last HPD registration Oct 15, 2019. HPD registration expired Nov 1, 2020 and had not been renewed as of Oct 3, 2026. Buildings with 3+ units must register with HPD every year.
Tax lot and city IDs
BBL 3050240051, HPD building ID 808289. HPD Online, ACRIS, DOB BIS.
Nearest subway
- Prospect Park (B, Q, S), 1 min walk
- Parkside Av (Q), 9 min walk
- Sterling St (2, 5), 12 min walk
How the grade is calculated
| Factor | On record | Points |
|---|---|---|
| Open HPD violations | 25 open (4 class C, 5 class B, 16 class A) | −40 |
| 311 housing complaints (12 mo) | 1 | −8 |
| Bedbug reports (3 yr) | None reported | 0 |
| Executed evictions (3 yr) | None | 0 |
| Housing litigation | No open cases | 0 |
| Open DOB violations | 2 open DOB violations | −5 |
Sources: NYC HPD Housing Maintenance Code Violations, NYC 311 Service Requests, NYC HPD Bedbug Reporting, NYC Marshal Evictions (DOI), NYC HPD Housing Litigations, NYC DOB Violations, NYC DOF tax bills (via JustFix Who Owns What portfolio API, v2), NYC HPD Property Registration. Methodology. Report generated 2026-10-28.