4123 9th Avenue

4123 9th Avenue in Sunset Park, Brooklyn, has 107 open HPD violations, 28 of them class C, and 39 of 38 units are rent-stabilized, as of Oct 25, 2026. StreetSpy grade: F (35/100).

Multi-family walk-up · 38 units · Built 1916

StreetSpy grade: F (Severe, 35/100)

• 28 immediately hazardous violations open (the class that covers no heat, pests, lead paint and similar).
• 10 open violations are classified rent-impairing under NY Multiple Dwelling Law section 302-a.
• 7 heat or hot water complaints to 311 in the last 12 months.
• 39 of 38 units are rent-stabilized.

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

• Repairs: High (107 open, 28 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

How the grade works

Housing code violations (HPD)

107 open violations: 28 class C (immediately hazardous), 67 class B, 12 class A. 67 issued in the last 12 months. 593 on record. Oldest open violation issued 2008-10-14. Newest violation issued 2026-09-23.

14 closed in the last 90 days. Median 104 days from issue to close for the 22 violations closed in the last 12 months.

10 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: Rats (hallway). 567 (C) § 27-2017, 27-2017.1, 27-2017.4, 27-2017.5, 27-2017.8, 27-2019, 27-2021 HMC: ABATE THE NUISANCE CONSISTING OF EVIDENCE OF RATS AND ALL UNDERLYING CAUSES CREATING THE PEST INFESTATIONS, BY USING INTEGRATED PEST MANAGEMENT (IPM), ELIMINATE ALL BURROW ENTRY AND PASSAGEWAYS, PEST NESTS, HOLES, GAPS OR CRACKS IN WALLS, CEILINGS, FLOORS, FIXING LEAKS AND MANAGING GARBAGE IN PUBLIC AREAS. EVIDENCE FOUND AT ALL YARD, issued 2026-09-23. HPD violation 19233384
• Class C: Rats (hallway). 567 (C) § 27-2017, 27-2017.1, 27-2017.4, 27-2017.5, 27-2017.8, 27-2019, 27-2021 HMC: ABATE THE NUISANCE CONSISTING OF EVIDENCE OF RATS AND ALL UNDERLYING CAUSES CREATING THE PEST INFESTATIONS, BY USING INTEGRATED PEST MANAGEMENT (IPM), ELIMINATE ALL BURROW ENTRY AND PASSAGEWAYS, PEST NESTS, HOLES, GAPS OR CRACKS IN WALLS, CEILINGS, FLOORS, FIXING LEAKS AND MANAGING GARBAGE IN PUBLIC AREAS. EVIDENCE FOUND AT , YARD, issued 2026-09-23. HPD violation 19236068
• Class C: Door, lock or intercom defect (entrance). HMC: PROPERLY REPAIR OR REPLACE THE BROKEN OR DEFECTIVE LOCKING ASSEMBLY AT BUILDING ENTRANCE DOOR . , 1st STORY, issued 2026-09-15. HPD violation 19217321
• Class C: Self-closing door not working, 1st floor. , 27-2007, 27-2041.1 HMC, §238, § 309; § 107 (2) ( C) MDL AND 28 RCNY §25-171: REPLACE OR REPAIR THE SELF-CLOSING DOORS THAT IS MISSING OR DEFECTIVE HINGES IN THE ENTRANCE LOCATED AT APT B3, 1st STORY, 1st APARTMENT FROM EAST AT SOUTH , SECTION ''SOUTH'' (apt B3), issued 2026-06-24. HPD violation 19026718
• Class C: Mice, throughout the apartment, 1st floor. HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF MICE IN THE ENTIRE APARTMENT LOCATED AT APT B5, 1st STORY, 1st APARTMENT FROM WEST AT NORTH (apt B5), issued 2026-04-06. HPD violation 18761272
• Class C: Roaches, throughout the apartment, 1st floor. HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF ROACHES IN THE ENTIRE APARTMENT LOCATED AT APT B5, 1st STORY, 1st APARTMENT FROM WEST AT NORTH (apt B5), issued 2026-04-06. HPD violation 18761275
• Class C: Lead paint hazard, 3rd room from the east, 3rd floor. - CORRECT THE LEAD-BASED PAINT HAZARD - PAINT THAT TESTED POSITIVE FOR LEAD CONTENT AND THAT IS PEELING OR ON A DETERIORATED SUBSURFACE - USING WORK PRACTICES SET FORTH IN 28 RCNY §11-06(B)(2) NORTH WALL IN THE 3rd ROOM FROM EAST LOCATED AT APT B31, 3rd STORY, 2nd APARTMENT FROM SOUTH AT WEST (apt B31), issued 2026-03-23. HPD violation 18733401
• Class C: Mice, throughout the apartment, 3rd floor. HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF MICE IN THE ENTIRE APARTMENT LOCATED AT APT B31, 3rd STORY, 2nd APARTMENT FROM SOUTH AT WEST (apt B31), issued 2026-03-23. HPD violation 18727359

311 housing complaints

43 in the last 12 months, 89 in 5 years. Most common: Water Leak (10), Plumbing (8), Heat/Hot Water (7), Unsanitary Condition (7), Paint/Plaster (6).

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: Owner reported 0 infested units
• 2023: No bedbug filing on record for this year
• 2022: Owner reported 0 infested units
• 2021: Owner reported 0 infested units

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 (1 on record). 0 open HPD cases; 0 harassment findings.

Rent stabilization

39 of 38 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: 39 in 2024, 39 in 2007. Source: DOF tax bills for 2007 and 2024; years with no bill on file are left out.

Owner and management

Owner: CONGREGATION YEHUDA AND MEIR TZVI. Head officer: Harry GOTTLIEB. Managing agent: Yehoshia Sturm. See the full portfolio.

Last HPD registration May 11, 2026. Registration on file through Sep 1, 2026; renewal not yet in the city's data.

Tax lot and city IDs

BBL 3055900001, HPD building ID 135073. HPD Online, ACRIS, DOB BIS.

Nearest subway

• 9 Av (D), 4 min walk
• Fort Hamilton Pkwy (D), 5 min walk
• 50 St (D), 11 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.