521 Throop Avenue
521 Throop Avenue in Bed-Stuy, Brooklyn, has 32 open HPD violations, and no rent-stabilized units are on its tax bill, as of Oct 26, 2026. StreetSpy grade: D (60/100).
Multi-family walk-up · 4 units · Built 1905
StreetSpy grade: D (Poor, 60/100)
- 32 open housing violations, none in the most serious class.
- 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 (32 open), records as of Oct 26, 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 28, 2026
- Safety: Clear (No open DOB violations), records as of Oct 26, 2026
- Registration: Renewal not yet in city data, records as of Oct 3, 2026
Housing code violations (HPD)
32 open violations: 0 class C (immediately hazardous), 22 class B, 10 class A. 0 issued in the last 12 months. 43 on record. Oldest open violation issued 2012-02-15. Newest violation issued 2025-06-11.
HPD recorded no violation closed here in the last 12 months.
- Class B: Damaged plaster or paint, 4th floor. REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN A UNIFORM COLOR AT ALL WALLS AND CEILING INSIDE CLOSET IN THE PRIVATE HALLWAY LOCATED AT APT 4, 4th STORY, APARTMENT AT EAST (apt 4), issued 2012-03-29. HPD violation 9379532
- Class B: Fire escape defect, kitchen, 4th floor. SECTION 27-2005, 2007 ADM CODE FIRE EGRESS DEFECTIVE. REMOVE OBSTRUCTING BARS OR UNLAWFUL GATES FROM WINDOW TO FIRE ESCAPE OR PROVIDE APPROVED TYPE GATE .. IN THE KITCHEN LOCATED AT APT 4, 4th STORY, APARTMENT AT EAST (apt 4), issued 2012-03-29. HPD violation 9379533
- Class B: Broken window or sash, 4th room from the east, 4th floor. PROPERLY REPAIR THE BROKEN OR DEFECTIVE LOWER SASH COUNTER BALANCES AT SOUTH AND CENTRAL WINDOWS IN THE 4th ROOM FROM EAST AT NORTH LOCATED AT APT 4, 4th STORY, APARTMENT AT EAST (apt 4), issued 2012-03-27. HPD violation 9379529
- Class B: Missing or broken smoke / CO detector, 4th floor. REPAIR OR REPLACE THE SMOKE DETECTOR DEFECTIVE LOCATED AT APT 4, 4th STORY, APARTMENT AT EAST (apt 4), issued 2012-03-27. HPD violation 9379522
- Class B: Damaged plaster or paint, ceiling, 2nd room from the east, 4th floor. REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN A UNIFORM COLOR AT CEILING IN THE 2nd ROOM FROM EAST AT NORTH LOCATED AT APT 4, 4th STORY, APARTMENT AT EAST (apt 4), issued 2012-03-27. HPD violation 9379519
- Class B: Broken window or sash, kitchen, 4th floor. PROPERLY REPAIR THE BROKEN OR DEFECTIVE LOWER SASH COUNTER BALANCE AT EAST WINDOW IN THE KITCHEN LOCATED AT APT 4, 4th STORY, APARTMENT AT EAST (apt 4), issued 2012-03-27. HPD violation 9379526
- Class B: Door, lock or intercom defect, 4th floor. PROPERLY REPAIR THE BROKEN OR DEFECTIVE INTERCOMMUNICATION SYSTEM LOCATED AT APT 4, 4th STORY, APARTMENT AT EAST (apt 4), issued 2012-03-27. HPD violation 9379520
- Class B: Missing or broken smoke / CO detector, 4th 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. LOCATED AT APT 4, 4th STORY, APARTMENT AT EAST (apt 4), issued 2012-03-27. HPD violation 9379521
311 housing complaints
0 in the last 12 months, 0 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: Owner reported 0 infested units
- 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: ESTELLE DEAN. Managing agent: ESTELLE NICHOLS. See the full portfolio.
Last HPD registration Sep 16, 2025. Registration on file through Sep 1, 2026; renewal not yet in the city's data.
Tax lot and city IDs
BBL 3018310002, HPD building ID 381228. HPD Online, ACRIS, DOB BIS.
Nearest subway
- Kingston-Throop Avs (C), 6 min walk
- Nostrand Av (A, C), 11 min walk
- Utica Av (A, C), 13 min walk
How the grade is calculated
| Factor | On record | Points |
|---|---|---|
| Open HPD violations | 32 open (22 class B, 10 class A) | −40 |
| 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 |
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.