50 East 21st Street

50 East 21st Street in Flatbush, Brooklyn, has 59 open HPD violations, 20 of them class C, and 59 of 59 units are rent-stabilized, as of Oct 24, 2026. StreetSpy grade: F (46/100).

Multi-family elevator · 59 units · Built 1936

StreetSpy grade: F (Severe, 46/100)

• 20 immediately hazardous violations open (the class that covers no heat, pests, lead paint and similar).
• 3 open violations are classified rent-impairing under NY Multiple Dwelling Law section 302-a.
• 19 heat or hot water complaints to 311 in the last 12 months.
• 59 of 59 units are rent-stabilized.

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

• Repairs: High (59 open, 20 class C), records as of Oct 24, 2026
• Heat and hot water: 19 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

How the grade works

Housing code violations (HPD)

59 open violations: 20 class C (immediately hazardous), 32 class B, 7 class A. 58 issued in the last 12 months. 571 on record. Oldest open violation issued 1994-07-19. Newest violation issued 2026-09-08.

26 closed in the last 90 days. Median 60 days from issue to close for the 38 violations closed in the last 12 months.

3 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: Roaches, throughout the apartment, 4th floor. HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF ROACHES IN THE ENTIRE APARTMENT LOCATED AT APT 4E, 4th STORY, 1st APARTMENT FROM NORTH AT EAST (apt 4E), issued 2026-09-08. HPD violation 19190336
• Class C: Mice, throughout the apartment, 6th floor. HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF MICE IN THE ENTIRE APARTMENT LOCATED AT APT 6A, 6th STORY, 2nd APARTMENT FROM SOUTH AT WEST (apt 6A), issued 2026-08-18. HPD violation 19139504
• Class C: Roaches, throughout the apartment, 6th floor. HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF ROACHES IN THE ENTIRE APARTMENT LOCATED AT APT 6A, 6th STORY, 2nd APARTMENT FROM SOUTH AT WEST (apt 6A), issued 2026-08-18. HPD violation 19139505
• 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 SOUTH FIRE PASSAGEWAY, issued 2026-08-10. HPD violation 19132196
• Class C: Roaches, throughout the apartment, 4th floor. HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF ROACHES IN THE ENTIRE APARTMENT LOCATED AT APT 4E, 4th STORY, 1st APARTMENT FROM NORTH AT EAST (apt 4E), issued 2026-07-23. HPD violation 19087086
• Class C: Fire escape defect, 3rd room from the north, 4th floor. & 309 M/D LAW ABATE THE NUISANCE CONSISTING OF KEY OPERATED LOCK AT DOOR LEADING TO FIRE ESCAPE IN THE 3rd ROOM FROM NORTH AT EAST LOCATED AT APT 4E, 4th STORY, 1st APARTMENT FROM NORTH AT EAST (apt 4E), issued 2026-07-23. HPD violation 19087088
• Class C: Mice, throughout the apartment, 4th floor. HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF MICE IN THE ENTIRE APARTMENT LOCATED AT APT 4E, 4th STORY, 1st APARTMENT FROM NORTH AT EAST (apt 4E), issued 2026-07-07. HPD violation 19046338
• Class C: Roaches, throughout the apartment, 4th floor. HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF ROACHES IN THE ENTIRE APARTMENT LOCATED AT APT 4E, 4th STORY, 1st APARTMENT FROM NORTH AT EAST (apt 4E), issued 2026-07-07. HPD violation 19046337

311 housing complaints

30 in the last 12 months, 185 in 5 years. Most common: Heat/Hot Water (19), Unsanitary Condition (11).

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)

No open DOB violations. 3 DOB violations on record. Check on DOB BIS.

Evictions and housing court

0 executed evictions in the last 3 years (2 on record). 0 open HPD cases; 0 harassment findings.

Rent stabilization

59 of 59 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: 59 in 2024, 59 in 2007. Source: DOF tax bills for 2007 and 2024; years with no bill on file are left out.

Owner and management

Owner: Prospect 21, LLC. Head officer: Scott Silverman. Managing agent: Bronstein Properties LLC. This owner has 84 buildings on record, 39 graded D or F. See the full portfolio.

Last HPD registration Aug 20, 2025. Registration on file through Sep 1, 2026; renewal not yet in the city's data.

Tax lot and city IDs

BBL 3050620051, HPD building ID 249569. HPD Online, ACRIS, DOB BIS.

Nearest subway

• Parkside Av (Q), 3 min walk
• Church Av (B, Q), 4 min walk
• Prospect Park (B, Q, S), 12 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 2026-10-27.