3720 Flatlands Avenue
3720 Flatlands Avenue in Marine Park, Brooklyn, has 14 open HPD violations, 4 of them class C, and 6 of 6 units are rent-stabilized, as of Oct 24, 2026. StreetSpy grade: F (35/100).
Multi-family walk-up · 6 units · Built 1928
StreetSpy grade: F (Severe, 35/100)
- 4 immediately hazardous violations open (the class that covers no heat, pests, lead paint and similar).
- 1 open violation is classified rent-impairing under NY Multiple Dwelling Law section 302-a.
- 6 heat or hot water complaints to 311 in the last 12 months.
- 6 of 6 units are rent-stabilized.
More open violations per unit than 7 in 10 Brooklyn buildings this size.
- Repairs: High (14 open, 4 class C), records as of Oct 24, 2026
- Heat and hot water: 6 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
Housing code violations (HPD)
14 open violations: 4 class C (immediately hazardous), 6 class B, 4 class A. 17 issued in the last 12 months. 23 on record. Oldest open violation issued 2026-07-23. Newest violation issued 2026-08-24.
2 closed in the last 90 days. Median 32 days from issue to close for the 3 violations closed in the last 12 months.
1 open violation is classified rent-impairing under NY Multiple Dwelling Law section 302-a. Section 302-a; NY Courts guidance on getting repairs.
- Class C: No heat / heating defect (basement). HMC: PROPERLY REPAIR OR REPLACE THE BROKEN OR DEFECTIVE BREACHING LEADING TO FLUE STACK AT BOILER ROOM AT CELLAR, issued 2026-08-24. HPD violation 19155727
- Class C: Self-closing door not working (hallway). , 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 LEADING TO CELLAR AT PUBLIC HALL, 1st STORY, issued 2026-08-24. HPD violation 19155726
- 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 21REAR, 1st STORY, 1st APARTMENT FROM EAST AT SOUTH (apt 21REAR), issued 2026-08-24. HPD violation 19155722
- 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 21REAR, 1st STORY, 1st APARTMENT FROM EAST AT SOUTH (apt 21REAR), issued 2026-07-27. HPD violation 19099713
- Class B: Missing or broken smoke / CO detector, throughout the apartment, 1st floor. (B)(1)(A) HMC, § 12-01, § 12-03 RCNY REPAIR, REPLACE OR PROVIDE AN APPROVED AND OPERATIONAL SMOKE DETECTING DEVICE, INSTALLED IN ACCORDANCE WITH DEPARTMENT OF BUILDINGS RULES AND REGULATIONS THAT IS DEFECTIVE IN THE ENTIRE APARTMENT LOCATED AT APT 21REAR, 1st STORY, 1st APARTMENT FROM EAST AT SOUTH (apt 21REAR), issued 2026-08-24. HPD violation 19155723
- Class B: Missing or broken smoke / CO detector, throughout the apartment, 1st floor. (B)(1)(B) HMC, § 12-06, § 12-07, § 12-09 RCNY REPAIR, REPLACE OR PROVIDE AN APPROVED AND OPERATIONAL CARBON MONOXIDE DETECTING DEVICE, INSTALLED IN ACCORDANCE WITH APPLICABLE LAW AND RULES THAT IS DEFECTIVE IN THE ENTIRE APARTMENT LOCATED AT APT 21REAR, 1st STORY, 1st APARTMENT FROM EAST AT SOUTH (apt 21REAR), issued 2026-08-24. HPD violation 19155724
- Class B: Garbage not removed (basement). , 2011, 2012 ADM CODE REMOVE THE ACCUMULATION OF REFUSE AND/OR RUBBISH AND MAINTAIN IN A CLEAN CONDITION THE AT CELLAR, issued 2026-08-24. HPD violation 19155728
- Class B: Items blocking a hallway or exit (hallway). , 2007 ADM CODE REMOVE ALL ENCUMBRANCES CONSISTING OF HOUSE HOLD ITEMS AT PUBLIC HALL, 2nd STORY, issued 2026-07-27. HPD violation 19099715
311 housing complaints
13 in the last 12 months, 13 in 5 years. Most common: Unsanitary Condition (7), Heat/Hot Water (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: Owner reported 0 infested units
- 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)
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
6 of 6 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: 6 in 2024, 6 in 2007. Source: DOF tax bills for 2007 and 2024; years with no bill on file are left out.
Owner and management
Owner: MURIAL LEMBERGER. See the full portfolio.
Last HPD registration Jul 3, 2025. Registration on file through Sep 1, 2026; renewal not yet in the city's data.
Tax lot and city IDs
BBL 3076990045, HPD building ID 293158. HPD Online, ACRIS, DOB BIS.
Nearest subway
- Avenue M (Q), 21 min walk
- Flatbush Av-Brooklyn College (2, 5), 22 min walk
- Kings Hwy (B, Q), 24 min walk
How the grade is calculated
| Factor | On record | Points |
|---|---|---|
| Open HPD violations | 14 open (4 class C, 6 class B, 4 class A). 1 rent-impairing | −45 |
| 311 housing complaints (12 mo) | 13 | −20 |
| Bedbug reports (3 yr) | None reported | 0 |
| Executed evictions (3 yr) | None | 0 |
| Housing litigation | No open cases | 0 |
| Open DOB violations | None | 0 |
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.