771 East 9th Street
771 East 9th Street in Flatbush, Brooklyn, has 1 open HPD violation, class C, and 6 of 6 units are rent-stabilized, as of Oct 25, 2026. StreetSpy grade: C (70/100).
Multi-family walk-up · 6 units · Built 1925
StreetSpy grade: C (Fair, 70/100)
- 1 immediately hazardous violation open (the class that covers no heat, pests, lead paint and similar).
- 7 heat or hot water complaints to 311 in the last 12 months.
- The owner's bedbug filings report no infested units in the last 3 years.
- 6 of 6 units are rent-stabilized.
Fewer open violations per unit than 5 in 10 Brooklyn buildings this size.
- Repairs: Low (1 open, 1 class C), records as of Oct 25, 2026
- Heat and hot water: 7 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)
1 open violations: 1 class C (immediately hazardous), 0 class B, 0 class A. 19 issued in the last 12 months. 86 on record. Oldest open violation issued 2025-12-08. Newest violation issued 2026-06-03.
1 closed in the last 90 days. Median 92 days from issue to close for the 18 violations closed in the last 12 months.
- Class C: No heat / heating defect (basement). PROVIDE READY ACCESS TO BUILDINGS HEATING SYSTEM LOCKED DOOR AT CELLAR AT BOILER ROOM, issued 2025-12-08. HPD violation 18483521
311 housing complaints
11 in the last 12 months, 16 in 5 years. Most common: Heat/Hot Water (7), Unsanitary Condition (2), Paint/Plaster (1), Water Leak (1).
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: Owner reported 0 infested units
- 2025: Owner reported 0 infested units
- 2024: Owner reported 0 infested units
- 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. 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
6 of 6 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: 6 in 2024, 6 in 2007. Source: DOF tax bills for 2007 and 2024; years with no bill on file are left out.
Owner and management
Owner: KAI PROPERTIES, LLC. Head officer: YAQI YANG. Managing agent: YAQI YANG. This owner has 3 buildings on record, 0 graded D or F. See the full portfolio.
Last HPD registration Aug 22, 2025. Registration on file through Sep 1, 2026; renewal not yet in the city's data.
Tax lot and city IDs
BBL 3064970060, HPD building ID 241513. HPD Online, ACRIS, DOB BIS.
Nearest subway
- Avenue H (Q), 7 min walk
- Newkirk Plaza (B, Q), 9 min walk
- 18 Av (F), 10 min walk
How the grade is calculated
| Factor | On record | Points |
|---|---|---|
| Open HPD violations | 1 open (1 class C) | −10 |
| 311 housing complaints (12 mo) | 11 | −20 |
| 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 2026-10-27.