311 20th Street
311 20th Street in Sunset Park, Brooklyn, has 42 open HPD violations, and its rent-stabilization status could not be verified, as of Oct 25, 2026. StreetSpy grade: F (49/100).
Multi-family walk-up · 3 units · Built 1910
StreetSpy grade: F (Severe, 49/100)
- 140 open HPD violations per 10 units, about 14 per apartment. The grade is F for that alone.
- 42 open housing violations, none in the most serious class.
- 5 open violations are classified rent-impairing under NY Multiple Dwelling Law section 302-a.
More open violations per unit than 9 in 10 Brooklyn buildings this size.
- Repairs: Grade capped at F (42 open), records as of Oct 25, 2026
- Heat and hot water: No complaints, 12 mo, records as of Oct 25, 2026
- Pests: Clear (No bedbug filing, 3 yr), records as of Oct 27, 2026
- Safety: Clear (No open DOB violations), records as of Oct 23, 2026
- Registration: Expired Sep 30, 1994, records as of Oct 14, 2026
Housing code violations (HPD)
42 open violations: 0 class C (immediately hazardous), 20 class B, 10 class A, 12 class I (HPD orders such as lead paint or heat orders, not a hazard class). 1 issued in the last 12 months. 45 on record. Oldest open violation issued 2009-10-14. Newest violation issued 2026-05-01.
HPD recorded no violation closed here 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: Roof defect (hallway). SECTION 27-2005, 2007 ADM CODE REMOVE ALL ENCUMBRANCES CONSISTING OF ATHLETIC TRAINING EQUIPTMENT MACHINES AROUND SCUTTLE RECESS LADDER OBSTRUCTING EGRESS TO THE ROOF AT PUBLIC HALL, 3rd STORY, issued 2009-10-14. HPD violation 3577790
- Class B: Leak or water damage, living room, 3rd floor. REPAIR THE ROOF SO THAT IT WILL NOT LEAK .. IN THE 2nd LIVING ROOM FROM SOUTH LOCATED AT APT 3, 3rd STORY, 1st APARTMENT FROM WEST AT NORTH (apt 3), issued 2009-10-14. HPD violation 3577854
- Class B: Items blocking a hallway or exit. D26-10.01, 10.05 ADM CODE REMOVE ALL ENCUMBRANCES CONSISTING OF 3 STY PUB HALL HOUSEHOLD ITEMS., issued 2009-10-14. HPD violation 1010897
- Class B: Lighting defect (entrance). PROVIDE ADEQUATE LIGHTING AT OR NEAR THE OUTSIDE OF THE FRONT ENTRANCEWAY OF THE BUILDING AND KEEP SAME BURNING FROM SUNSET EVERY DAY TO SUNRISE ON THE DAY FOLLOWING 100 WATTS REQUIRED, issued 2009-10-14. HPD violation 4725835
- Class B: Leak or water damage, kitchen. D26-16.01 ADM CODE REPAIR THE LEAKY AND/OR DEFECTIVE FAUCETS KITCHEN SINK OF 3 STY APT., issued 2009-10-14. HPD violation 1010902
- Class B: Self-closing door not working, 3rd floor. ARRANGE AND MAKE SELF-CLOSING THE DOORS .. IN THE ENTRANCE LOCATED AT APT 3, 3rd STORY, 1st APARTMENT FROM WEST AT NORTH (apt 3), issued 2009-10-14. HPD violation 3577817
- Class B: Leak or water damage, bathroom, 3rd floor. REPAIR THE LEAKY AND/OR DEFECTIVE FAUCETS WASH BASIN IN THE BATHROOM LOCATED AT APT 3, 3rd STORY, 1st APARTMENT FROM WEST AT NORTH (apt 3), issued 2009-10-14. HPD violation 3577674
- Class B: Lighting defect (entrance). D26-19.07 ADM CODE PROVIDE ADEQUATE LIGHTING AT OR NEAR THE OUTSIDE OF THE FRONT ENTRANCEWAY OF THE BUILDING AND KEEP SAME BURNING FROM SUNSET EVERY DAY TO SUNRISE ON THE DAY FOLLOWING 50 WATTS FRONT., issued 2009-10-14. HPD violation 1010901
311 housing complaints
0 in the last 12 months, 0 in 5 years.
Bedbugs
No bedbug filing on record for the last 3 years. 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: 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
Stabilization status could not be verified.
Owner and management
Owner: DIAZ, ADA L. See the full portfolio.
Last HPD registration Apr 1, 1993. HPD registration expired Sep 30, 1994 and had not been renewed as of Oct 14, 2026. Buildings with 3+ units must register with HPD every year.
Tax lot and city IDs
BBL 3008860080, HPD building ID 145067. HPD Online, ACRIS, DOB BIS.
Nearest subway
- Prospect Av (R), 7 min walk
- 25 St (R), 8 min walk
- 15 St-Prospect Park (F, G), 11 min walk
How the grade is calculated
| Factor | On record | Points |
|---|---|---|
| Open HPD violations | 42 open (20 class B, 10 class A, 12 class I). 5 rent-impairing | −45 |
| 311 housing complaints (12 mo) | None | 0 |
| Bedbug reports (3 yr) | None reported | 0 |
| Executed evictions (3 yr) | None | 0 |
| Housing litigation | No open cases | 0 |
| Open DOB violations | None | 0 |
| Density cap | 140 per 10 units (about 14 per apartment). Grade capped at F: 100 or more open HPD violations per 10 units. | −6 |
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.