306 Prospect Avenue

306 Prospect Avenue in Windsor Terrace, Brooklyn, has 10 open HPD violations, 2 of them class C, and 3 of 9 units are rent-stabilized, as of Oct 26, 2026. StreetSpy grade: D (62/100).

Multi-family walk-up · 9 units · Built 1931

StreetSpy grade: D (Poor, 62/100)

• 2 immediately hazardous violations open (the class that covers no heat, pests, lead paint and similar).
• No housing complaints to 311 in the last 12 months.
• The owner's bedbug filings report no infested units in the last 3 years.
• 3 of 9 units are rent-stabilized.

More open violations per unit than 6 in 10 Brooklyn buildings this size.

• Repairs: High (10 open, 2 class C), records as of Oct 26, 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 28, 2026
• Safety: Medium (1 open DOB violation), records as of Oct 26, 2026
• Registration: Through Sep 1, 2027, records as of Oct 3, 2026

How the grade works

Housing code violations (HPD)

10 open violations: 2 class C (immediately hazardous), 6 class B, 2 class A. 1 issued in the last 12 months. 22 on record. Oldest open violation issued 2010-02-22. Newest violation issued 2026-05-05.

HPD recorded no violation closed here in the last 12 months.

• Class C: No heat / heating defect (hallway). POST NOTICE, IN FORM APPROVED BY THE DEPARTMENT, STATING THE NAME AND LOCATION OF THE PERSON DESIGNATED BY THE OWNER TO HAVE KEY TO BUILDINGS HEATING SYSTEM WRONG INFORMATION AT PUBLIC HALL, 1st STORY, issued 2022-11-17. HPD violation 15517983
• Class C: Door, lock or intercom defect (entrance). PROPERLY REPAIR THE BROKEN OR DEFECTIVE LOCK AT ENTRANCE DOOR TO BUILDING FROM STREET , 1st STORY, issued 2010-10-04. HPD violation 8628231
• Class B: Missing or broken smoke / CO detector, throughout the apartment, 2nd floor. HMC: REPAIR OR REPLACE THE CARBON MONOXIDE DETECTING DEVICE(S). MISSING IN THE ENTIRE APARTMENT LOCATED AT APT 2B, 2nd STORY, 1st APARTMENT FROM SOUTH AT WEST (apt 2B), issued 2023-01-17. HPD violation 15665123
• Class B: Missing or broken smoke / CO detector, throughout the apartment, 2nd floor. REPAIR OR REPLACE THE SMOKE DETECTOR MISSING IN THE ENTIRE APARTMENT LOCATED AT APT 2B, 2nd STORY, 1st APARTMENT FROM SOUTH AT WEST (apt 2B), issued 2023-01-17. HPD violation 15665124
• Class B: Lighting defect (entrance). PROVIDE ADEQUATE LIGHTING AT OR NEAR THE OUTSIDE OF THE FRONT ENTRANCEWAY OF THE BUILDING AND KEEP SAME BURNING FROM SUNSET EVERY DAY TO SUNRISE ON THE DAY FOLLOWING A MINIMUM OF 100 WATTS OF INCANDESCENT LIGHT REQUIRED. (LIGHT FIXTURE PRESENT), issued 2014-07-01. HPD violation 10293055
• Class B: Mice, throughout the apartment, 3rd floor. SECTION 27-2018 ADMIN. CODE: ABATE THE NUISANCE CONSISTING OF MICE IN THE ENTIRE APARTMENT LOCATED AT APT 3B, 3rd STORY, 1st APARTMENT FROM EAST AT SOUTH (apt 3B), issued 2010-02-22. HPD violation 8290221
• Class B: Roaches, throughout the apartment, 3rd floor. SECTION 27-2018 ADMIN. CODE: ABATE THE NUISANCE CONSISTING OF ROACHES IN THE ENTIRE APARTMENT LOCATED AT APT 3B, 3rd STORY, 1st APARTMENT FROM EAST AT SOUTH (apt 3B), issued 2010-02-22. HPD violation 8290220
• Class B: Missing or broken smoke / CO detector, throughout the apartment, 3rd floor. SECTION 27-2046.1, 2046.2 HMC: PROVIDE AN APPROVED AND OPERATIONAL CARBON MONOXIDE DETECTING DEVICE, INSTALLED IN ACCORDANCE WITH APPLICABLE LAW AND RULES. IN THE ENTIRE APARTMENT LOCATED AT APT 3B, 3rd STORY, 1st APARTMENT FROM EAST AT SOUTH (apt 3B), issued 2010-02-22. HPD violation 8290222

311 housing complaints

0 in the last 12 months, 3 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: No bedbug filing on record for this year
• 2024: No bedbug filing on record for this year
• 2023: Owner reported 0 infested units
• 2022: Owner reported 0 infested units
• 2021: No bedbug filing on record for this year

Buildings department (DOB)

1 open DOB violation. 3 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

3 of 9 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: 3 in 2024, 3 in 2007. Source: DOF tax bills for 2007 and 2024; years with no bill on file are left out.

Owner and management

Owner: BSY Associates LLC. Head officer: Shimon Hecht. Managing agent: Arya Management LLC. See the full portfolio.

Last HPD registration May 29, 2026, valid through Sep 1, 2027.

Tax lot and city IDs

BBL 3008680003, HPD building ID 356145. HPD Online, ACRIS, DOB BIS.

Nearest subway

• Prospect Av (R), 6 min walk
• 15 St-Prospect Park (F, G), 10 min walk
• 7 Av (F, G), 10 min walk

How the grade is calculated

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.