440 Prospect Avenue

440 Prospect Avenue in Windsor Terrace, Brooklyn, has 38 open HPD violations, and 4 of 8 units are rent-stabilized, as of Oct 24, 2026. StreetSpy grade: D (55/100).

Multi-family walk-up · 8 units · Built 1935

StreetSpy grade: D (Poor, 55/100)

• 38 open housing violations, none in the most serious class.
• 5 open violations are classified rent-impairing under NY Multiple Dwelling Law section 302-a.
• The head officer on this registration is named on 7 buildings' registrations; 7 graded D or F.
• 4 of 8 units are rent-stabilized; 8 on the 2007 tax bill.

More open violations per unit than 8 in 10 Brooklyn buildings this size.

• Repairs: High (38 open), records as of Oct 24, 2026
• Heat and hot water: No complaints, 12 mo, records as of Oct 23, 2026
• Pests: Clear (Owner reported none, 3 yr), records as of Oct 26, 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

How the grade works

Housing code violations (HPD)

38 open violations: 0 class C (immediately hazardous), 26 class B, 12 class A. 0 issued in the last 12 months. 49 on record. Oldest open violation issued 2003-08-27. Newest violation issued 2025-06-10.

0 closed in the last 90 days. Median 252 days from issue to close for the 1 violations closed in the last 12 months.

5 open violations are classified rent-impairing under NY Multiple Dwelling Law section 302-a. Section 302-a; NY Courts guidance on getting repairs.

• Class B: Fire escape defect. , 2007 ADM CODE AND DEPT. RULES AND REGULATIONS. REMOVE THE ENCUMBRANCE OBSTRUCTING EGRESS FROM FIRE ESCAPES AIR CONDITIONER & AREA RUGS AT FIRE ESCAPE AT FRONT OF BUILDING , 3rd STORY, issued 2023-12-26. HPD violation 16533955
• Class B: Items blocking a hallway or exit (hallway). , 2007 ADM CODE REMOVE ALL ENCUMBRANCES CONSISTING OF BICYCLES & SHOE RACK AT PUBLIC HALL, 3rd STORY, issued 2023-12-22. HPD violation 16533951
• Class B: Items blocking a hallway or exit (hallway). , 2007 ADM CODE REMOVE ALL ENCUMBRANCES CONSISTING OF AIR CONDITIONER, SHOE RACK,BICYCLE & OTHER HOUSEHOLD ITEMS AT PUBLIC HALL, 4th STORY, issued 2023-12-22. HPD violation 16533950
• Class B: Items blocking a hallway or exit (hallway). , 2007 ADM CODE REMOVE ALL ENCUMBRANCES CONSISTING OF DESK, LADDER, CHAIRS & OTHER HOUSEHOLD ITEMS AT PUBLIC HALL, 1st STORY, issued 2023-12-22. HPD violation 16533953
• Class B: Items blocking a hallway or exit (hallway). , 2007 ADM CODE REMOVE ALL ENCUMBRANCES CONSISTING OF SHOE RACK, LADDER & HOUSEHOLD ITEMS AT PUBLIC HALL, 2nd STORY, issued 2023-12-22. HPD violation 16533952
• Class B: Leak or water damage, ceiling, bathroom, 1st floor. , 2027 HMC: PROPERLY REPAIR THE SOURCE AND ABATE THE EVIDENCE OF A WATER LEAK AT CEILING IN THE BATHROOM LOCATED AT APT 1F, 1st STORY, 1st APARTMENT FROM EAST AT SOUTH (apt 1F), issued 2022-08-08. HPD violation 15293202
• Class B: Damaged plaster or paint, ceiling, 1st room from the east, 1st floor. REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN A UNIFORM COLOR AT CEILING IN THE 1st ROOM FROM EAST AT NORTH LOCATED AT APT 1F, 1st STORY, 1st APARTMENT FROM EAST AT SOUTH (apt 1F), issued 2022-08-08. HPD violation 15293206
• Class B: Damaged plaster or paint, ceiling, 1st room from the east, 1st floor. REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN A UNIFORM COLOR AT CEILING IN THE 1st ROOM FROM EAST AT SOUTH LOCATED AT APT 1F, 1st STORY, 1st APARTMENT FROM EAST AT SOUTH (apt 1F), issued 2022-08-08. HPD violation 15293203

311 housing complaints

0 in the last 12 months, 4 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: Owner reported 0 infested units
• 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: No bedbug filing on record for this year
• 2021: No bedbug filing on record for this year

Buildings department (DOB)

No open DOB violations. 0 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

4 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: 4 in 2024, 8 in 2007. Source: DOF tax bills for 2007 and 2024; years with no bill on file are left out.

Owner and management

Owner: ADDA REALTY SERVICES LLC. Head officer: ERIC P NACHIMOVSKY. Managing agent: myriam nachimovsky. This owner has 7 buildings on record, 7 graded D or F. See the full portfolio.

Last HPD registration Aug 28, 2025. Registration on file through Sep 1, 2026; renewal not yet in the city's data.

Tax lot and city IDs

BBL 3008700012, HPD building ID 356253. HPD Online, ACRIS, DOB BIS.

Nearest subway

• 15 St-Prospect Park (F, G), 4 min walk
• 7 Av (F, G), 10 min walk
• Prospect Av (R), 13 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 2026-10-27.