89 Avenue U

89 Avenue U in Gravesend, Brooklyn, has 33 open HPD violations, 3 of them class C, and no rent-stabilized units are on its tax bill, as of Oct 25, 2026. StreetSpy grade: D (60/100).

Mixed residential & commercial · 5 units · Built 1928

StreetSpy grade: D (Poor, 60/100)

• 3 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.
• 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 9 in 10 Brooklyn buildings this size.

• Repairs: High (33 open, 3 class C), 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

How the grade works

Housing code violations (HPD)

33 open violations: 3 class C (immediately hazardous), 19 class B, 11 class A. 0 issued in the last 12 months. 44 on record. Oldest open violation issued 2009-04-16. Newest violation issued 2025-06-06.

0 closed in the last 90 days. Median 955 days from issue to close for the 5 violations closed in the last 12 months.

• Class C: Lead paint hazard, 1st window frame from the east, south wall, 4th room from the north, 3rd floor. - CORRECT THE LEAD-BASED PAINT HAZARD - PRESUMED LEAD PAINT THAT IS PEELING OR ON A DETERIORATED SUBSURFACE USING WORK PRACTICES SET FORTH IN 28 RCNY ?11-06(B)(2) 1st WINDOW FRAME FROM EAST AT SOUTH WALL IN THE 4th ROOM FROM NORTH AT EAST LOCATED AT APT 3F, 3rd STORY, 1st APARTMENT FROM EAST AT SOUTH (apt 3F), issued 2009-09-11. HPD violation 8053380
• Class C: Lead paint hazard, 4th room from the north, 3rd floor. - CORRECT THE LEAD-BASED PAINT HAZARD - PRESUMED LEAD PAINT THAT IS PEELING OR ON A DETERIORATED SUBSURFACE USING WORK PRACTICES SET FORTH IN 28 RCNY ?11-06(B)(2) WEST WALL IN THE 4th ROOM FROM NORTH AT WEST LOCATED AT APT 3F, 3rd STORY, 1st APARTMENT FROM EAST AT SOUTH (apt 3F), issued 2009-09-11. HPD violation 8053379
• Class C: Door, lock or intercom defect (entrance). PROPERLY REPAIR THE BROKEN OR DEFECTIVE LOCK ASSEMBLY AT VESTIBULE DOOR , 1st STORY, issued 2009-08-31. HPD violation 8033693
• Class B: Damaged plaster or paint, bathroom, 2nd floor. REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN A UNIFORM COLOR CEILING IN THE BATHROOM LOCATED AT APT 2R, 2nd STORY, 1st APARTMENT FROM WEST AT NORTH (apt 2R), issued 2010-04-05. HPD violation 8358278
• Class B: Missing or broken smoke / CO detector, throughout the apartment, 2nd 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 2R, 2nd STORY, 1st APARTMENT FROM WEST AT NORTH (apt 2R), issued 2010-04-05. HPD violation 8358108
• Class B: Electrical defect, west wall, 2nd floor. REPLACE WITH NEW THE MISSING ELECTRICAL OUTLET PLATE AT WEST WALL IN THE PRIVATE HALLWAY LOCATED AT APT 2R, 2nd STORY, 1st APARTMENT FROM WEST AT NORTH (apt 2R), issued 2010-04-05. HPD violation 8358260
• Class B: Floor or stair defect (hallway). PROPERLY REPAIR THE BROKEN OR DEFECTIVE STAIR RISER AT 3RD STEP UP FROM LANDING AT PUBLIC HALL STAIRS, 1st STORY, issued 2010-04-05. HPD violation 8358197
• Class B: Door, lock or intercom defect, throughout the apartment, 2nd floor. PROPERLY REPAIR THE BROKEN OR DEFECTIVE INTERCOM SYSTEM AT BUILDING ENTRANCE DOOR IN THE ENTIRE APARTMENT LOCATED AT APT 2R, 2nd STORY, 1st APARTMENT FROM WEST AT NORTH (apt 2R), issued 2010-03-22. HPD violation 8336091

311 housing complaints

0 in the last 12 months, 2 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: Owner reported 0 infested units
• 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)

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

No rent-stabilized units on the tax bill.

Owner and management

Owner: Kathleen Mastellone. Head officer: KATHLEEN V MASTELLONE. Managing agent: KATHLEEN MASTELLONE. See the full portfolio.

Last HPD registration Oct 9, 2025. Registration on file through Sep 1, 2026; renewal not yet in the city's data.

Tax lot and city IDs

BBL 3070960047, HPD building ID 196155. HPD Online, ACRIS, DOB BIS.

Nearest subway

• Avenue U (N), 3 min walk
• 86 St (N), 6 min walk
• 25 Av (D), 6 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.