81 Underhill Avenue

81 Underhill Avenue in Prospect Heights, Brooklyn, has 47 open HPD violations, 25 of them class C, and 16 of 8 units are rent-stabilized, as of Oct 25, 2026. StreetSpy grade: F (22/100).

Co-op · Multi-family walk-up · 8 units · Built 1931

A cooperative: apartments are owned as shares, so a rental here is a sublet that usually needs board approval and may be limited to one or two years. Co-op units are not rent-stabilized.

StreetSpy grade: F (Severe, 22/100)

• 25 immediately hazardous violations open (the class that covers no heat, pests, lead paint and similar).
• 2 open violations are classified rent-impairing under NY Multiple Dwelling Law section 302-a.
• 1 eviction carried out by marshals in the last 3 years.
• 16 of 8 units are rent-stabilized.

• Repairs: High (47 open, 25 class C), records as of Oct 25, 2026
• Heat and hot water: 2 complaints, 12 mo, records as of Oct 25, 2026
• Pests: Clear (Owner reported none, 3 yr), records as of Oct 27, 2026
• Safety: Medium (1 open DOB violation), 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)

47 open violations: 25 class C (immediately hazardous), 18 class B, 4 class A. 5 issued in the last 12 months. 238 on record. Oldest open violation issued 2013-01-11. Newest violation issued 2026-05-07.

0 closed in the last 90 days. Median 77 days from issue to close for the 4 violations closed in the last 12 months.

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

• Class C: Leak or water damage, ceiling, 1st room from the east, 3rd floor. , 2027 HMC: PROPERLY REPAIR THE SOURCE AND ABATE THE EVIDENCE OF A WATER LEAK WATER LEAK AT CEILING IN THE 1st ROOM FROM EAST LOCATED AT APT 3R, 3rd STORY, 1st APARTMENT FROM SOUTH AT WEST (apt 3R), issued 2025-02-26. HPD violation 17709537
• Class C: No heat / heating defect, 4th room from the east, 3rd floor. HMC: PROPERLY REPAIR OR REPLACE THE BROKEN OR DEFECTIVE RADIATOR AIR VALVE AND SHUTOFF RELEASING WATER IN THE 4th ROOM FROM EAST LOCATED AT APT 3R, 3rd STORY, 2nd APARTMENT FROM EAST AT SOUTH (apt 3R), issued 2025-02-18. HPD violation 17696719
• Class C: No heat / heating defect, kitchen, 1st floor. HMC: PROPERLY REPAIR OR REPLACE THE BROKEN OR DEFECTIVE RADIATOR AIR VALVE AND SHUTOFF RELEASING WATER IN THE KITCHEN LOCATED AT APT 1R, 1st STORY, 2nd APARTMENT FROM EAST AT SOUTH (apt 1R), issued 2025-02-18. HPD violation 17696702
• Class C: No heat / heating defect, kitchen, 3rd floor. HMC: PROPERLY REPAIR OR REPLACE THE BROKEN OR DEFECTIVE RADIATOR AIR VALVE RELEASING WATER IN THE KITCHEN LOCATED AT APT 3L, 3rd STORY, 1st APARTMENT FROM WEST AT NORTH (apt 3L), issued 2025-02-18. HPD violation 17696705
• Class C: No heat / heating defect, 1st room from the east, 1st floor. HMC: PROPERLY REPAIR OR REPLACE THE BROKEN OR DEFECTIVE RADIATOR AIR VALVE AND SHUTOFF RELEASING WATER IN THE 1st ROOM FROM EAST LOCATED AT APT 1R, 1st STORY, 2nd APARTMENT FROM EAST AT SOUTH (apt 1R), issued 2025-02-18. HPD violation 17696699
• Class C: & 309 M/D LAW ABATE THE NUISANCE CONSISTING OF HOTWATER EXCEEDING THE MAXIMUM ALLOWABLE TEMPERATURE OF 130 DEGREES IN THE ENTIRE APARTMENT LOCATED AT APT 1R, 1st STORY, 2nd APARTMENT FROM EAST AT SOUTH (apt 1R), issued 2025-02-18. HPD violation 17696704
• Class C: No heat / heating defect, 5th room from the east, 1st floor. HMC: PROPERLY REPAIR OR REPLACE THE BROKEN OR DEFECTIVE RADIATOR AIR VALVE AND SHUTOFF RELEASING WATER IN THE 5th ROOM FROM EAST LOCATED AT APT 1R, 1st STORY, 2nd APARTMENT FROM EAST AT SOUTH (apt 1R), issued 2025-02-18. HPD violation 17696703
• Class C: Leak or water damage, ceiling, 1st room from the east, 3rd floor. , 2027 HMC: PROPERLY REPAIR THE SOURCE AND ABATE THE EVIDENCE OF A WATER LEAK AT CEILING INTERIOR OF CLOSET AT NORTH WLL IN THE 1st ROOM FROM EAST LOCATED AT APT 3R, 3rd STORY, 2nd APARTMENT FROM EAST AT SOUTH (apt 3R), issued 2025-02-18. HPD violation 17696716

311 housing complaints

7 in the last 12 months, 87 in 5 years. Most common: Door/Window (2), Heat/Hot Water (2), Plumbing (2), Unsanitary Condition (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: No bedbug filing on record for this year
• 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)

1 open DOB violation, a Local Law violation issued before 2000. 1 DOB violation on record. Check on DOB BIS.

Evictions and housing court

1 executed evictions in the last 3 years (1 on record). 0 open HPD cases; 0 harassment findings.

Rent stabilization

16 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).

Owner and management

Owner: UNDERHILL AVENUE REALTY LLC. Head officer: MEYER GUTNICK. Managing agent: MEYER GUTNICK. This owner has 2 buildings on record, 1 graded D or F. See the full portfolio.

Last HPD registration Oct 22, 2025. Registration on file through Sep 1, 2026; renewal not yet in the city's data.

Tax lot and city IDs

BBL 3011460004, HPD building ID 382881. HPD Online, ACRIS, DOB BIS.

Nearest subway

• Clinton-Washington Avs (C), 7 min walk
• Grand Army Plaza (2, 3), 7 min walk
• 7 Av (B, Q), 8 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.