451 7th Avenue
451 7th Avenue in Windsor Terrace, Brooklyn, has 9 open HPD violations, and 2 of 8 units are rent-stabilized, as of Oct 25, 2026. StreetSpy grade: C (73/100).
Mixed residential & commercial · 8 units · Built 1921
StreetSpy grade: C (Fair, 73/100)
- 9 open housing violations, none in the most serious class.
- The head officer on this registration is named on 16 buildings' registrations; 8 graded D or F.
- No housing complaints to 311 in the last 12 months.
- 2 of 8 units are rent-stabilized; 5 on the 2007 tax bill.
More open violations per unit than 6 in 10 Brooklyn buildings this size.
- Repairs: Medium (9 open), records as of Oct 25, 2026
- Heat and hot water: No complaints, 12 mo, records as of Oct 25, 2026
- Pests: Clear (Owner reported none, 3 yr), records as of Oct 27, 2026
- Safety: Clear (No open DOB violations), records as of Oct 23, 2026
- Registration: Renewal not yet in city data, records as of Oct 3, 2026
Housing code violations (HPD)
9 open violations: 0 class C (immediately hazardous), 4 class B, 5 class A. 0 issued in the last 12 months. 10 on record. Oldest open violation issued 2005-07-14. Newest violation issued 2025-06-05.
HPD recorded no violation closed here in the last 12 months.
- Class B: No heat / heating defect (basement). D26-10.01, 10.05 ADM CODE ARRANGE AND MAKE SELF-CLOSING THE DOORS ENTRANCE TO BOILER ROOM CELLAR, issued 2008-06-05. HPD violation 968944
- Class B: Floor or stair defect, bathroom. D26-10.01 ADM CODE PROPERLY REPAIR WITH SIMILAR MATERIAL THE BROKEN OR DEFECTIVE CERAMIC TILE FLOOR 3 STY EAST APT 3L BATHROOM. LOCATED AT APT 3L (apt 3L), issued 2008-06-05. HPD violation 968950
- Class B: Broken window or sash. PROPERLY REPAIR THE BROKEN OR DEFECTIVE AND OR MAKE OPENABLE LOWER SASHES ALL INTERIOR WINDOW TO AIR SHAFT 3 STY NORTH APT 3L. LOCATED AT APT 3L (apt 3L), issued 2005-07-14. HPD violation 968961
- Class B: Missing or broken smoke / CO detector. REPAIR OR REPLACE THE SMOKE DETECTOR DEFECTIVE 2 STY NORTHWEST APT 2RMCNEILL , SECTION '' '' (apt 2RMCNE), issued 2005-07-14. HPD violation 968977
- Class A: Damaged plaster or paint. D26-10.01 ADM CODE REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN A UNIFORM COLOR CEILING 4 STY EAST APT 4L FRONT ROOM. LOCATED AT APT 4L (apt 4L), issued 2008-06-05. HPD violation 968952
- Class A: Door, lock or intercom defect. SECTION 300 M/D LAW FILE PLANS AND APPLICATION AND LEGALIZE THE FOLLOWING ALTERATION OR RESTORE TO THE LEGAL CONDITION EXISTING PRIOR TO THE MAKING OF SAID ALTERATION OPENING IN WOOD FLOOR WITH DOOR 3 ROOM FROM FRONT 2 STY SOUTH APT 2R. , SECTION '' '' (apt 2R), issued 2008-06-05. HPD violation 968941
- Class A: Damaged plaster or paint (basement). D26-10.01 ADM CODE PROPERLY REPAIR WITH SIMILAR MATERIAL THE BROKEN OR DEFECTIVE METAL CEILING CELLAR REAR., issued 2008-06-05. HPD violation 968945
- Class A: Damaged plaster or paint, bathroom. SECTION 300 M/D LAW FILE PLANS AND APPLICATION AND LEGALIZE THE FOLLOWING ALTERATION OR RESTORE TO THE LEGAL CONDITION EXISTING PRIOR TO THE MAKING OF SAID ALTERATION WOOD WALL INSTALLED BATHROOM WINDOW AIR SHAFT OBSTRUCTING LIGHT & VENTILATION 2 STY SOUTH APT 2R. , SECTION '' '' (apt 2R), issued 2008-06-05. HPD violation 968940
311 housing complaints
0 in the last 12 months, 0 in 5 years.
Bedbugs
The owner reported 0 infested units in the last 3 years of filings. 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: Owner reported 0 infested units
- 2024: No bedbug filing on record for this year
- 2023: Owner reported 0 infested units
- 2022: Owner reported 0 infested units
- 2021: Owner reported 0 infested units
Buildings department (DOB)
No open DOB violations. 1 DOB violation 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
2 of 8 units rent-stabilized as of 2024. Stabilized renewals: 0% for one year and 0% for two years under RGB Order #58 (Oct 1, 2026 to Sep 30, 2027).
Rent-stabilized units on city tax bills: 2 in 2024, 5 in 2007. Source: DOF tax bills for 2007 and 2024; years with no bill on file are left out.
Owner and management
Owner: SLOPE AVENUE ASSOCIATION, LLC. Head officer: JEFFREY D GRONER. Managing agent: JEANS MANAGEMENT, LLC. This owner has 16 buildings on record, 8 graded D or F. See the full portfolio.
Last HPD registration Oct 30, 2025. Registration on file through Sep 1, 2026; renewal not yet in the city's data.
Tax lot and city IDs
BBL 3011040003, HPD building ID 133230. HPD Online, ACRIS, DOB BIS.
Nearest subway
- 15 St-Prospect Park (F, G), 6 min walk
- 7 Av (F, G), 7 min walk
- Prospect Av (R), 9 min walk
How the grade is calculated
| Factor | On record | Points |
|---|---|---|
| Open HPD violations | 9 open (4 class B, 5 class A) | −27 |
| 311 housing complaints (12 mo) | None | 0 |
| Bedbug reports (3 yr) | None reported | 0 |
| Executed evictions (3 yr) | None | 0 |
| Housing litigation | No open cases | 0 |
| Open DOB violations | None | 0 |
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.