520 East 21st Street

520 East 21st Street in Flatbush, Brooklyn, has 232 open HPD violations, 75 of them class C, and 106 of 102 units are rent-stabilized, as of Oct 25, 2026. StreetSpy grade: F (35/100).

Multi-family elevator · 102 units · Built 1951

StreetSpy grade: F (Severe, 35/100)

• 75 immediately hazardous violations open (the class that covers no heat, pests, lead paint and similar).
• 13 open violations are classified rent-impairing under NY Multiple Dwelling Law section 302-a.
• 48 heat or hot water complaints to 311 in the last 12 months.
• 106 of 102 units are rent-stabilized.

More open violations per unit than 9 in 10 Brooklyn buildings this size.

• Repairs: High (232 open, 75 class C), records as of Oct 25, 2026
• Heat and hot water: 48 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)

232 open violations: 75 class C (immediately hazardous), 134 class B, 23 class A. 210 issued in the last 12 months. 1111 on record. Oldest open violation issued 2015-12-07. Newest violation issued 2026-09-22.

33 closed in the last 90 days. Median 100 days from issue to close for the 158 violations closed in the last 12 months.

13 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: 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 AT COMPACTOR CLOSET DOOR , SOUTH SECTION, AT PUBLIC HALL, 1st STORY, issued 2026-09-22. HPD violation 19235569
• Class C: Missing window guards, throughout the apartment, 1st floor. HMC INSTALL THE MISSING OR REPAIR/REPLACE THE DEFECTIVE WINDOW GUARD(S) IN ACCORDANCE WITH THE SPECIFICATIONS OF THE NEW YORK CITY HEALTH CODE SECTION 24 RCNY CHAPTER 12. WG TO INSTALL = 2, WG TO REPLACE = 0, WG TO REPAIR = 2 IN THE ENTIRE APARTMENT LOCATED AT APT 1L, 1st STORY, 1st APARTMENT FROM NORTH AT EAST , SECTION ''SOUTH'' (apt 1L), issued 2026-09-22. HPD violation 19235544
• Class C: Rats, throughout the apartment, 1st floor. 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 RATS IN THE ENTIRE APARTMENT LOCATED AT APT 1L, 1st STORY, 1st APARTMENT FROM NORTH AT EAST , SECTION ''SOUTH'' (apt 1L), issued 2026-09-22. HPD violation 19235547
• Class C: Self-closing door not working. , 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 LATCH AT COMPACTOR CLOSET, 1st STORY, SECTION AT SOUTH, issued 2026-09-22. HPD violation 19229476
• 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 1R, 1st STORY, 3rd APARTMENT FROM SOUTH AT WEST , SECTION AT SOUTH (apt 1R), issued 2026-09-22. HPD violation 19229466
• 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 1L, 1st STORY, 1st APARTMENT FROM NORTH AT EAST , SECTION ''SOUTH'' (apt 1L), issued 2026-09-22. HPD violation 19235534
• 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 1R, 1st STORY, 3rd APARTMENT FROM SOUTH AT WEST , SECTION AT SOUTH (apt 1R), issued 2026-09-22. HPD violation 19229464
• Class C: Lead paint hazard, 1st door from the south, west wall, foyer, 1st floor. - CORRECT THE LEAD-BASED PAINT HAZARD-PAINT THAT IS PEELING OR ON A DETERIORATED SUBSURFACE AND EITHER TESTED INCONCLUSIVE FOR LEAD CONTENT AT 0.5MG/CM2 OR TESTED POSITIVE FOR LEAD CONTENT ON A METAL OR CERAMIC SUBSTRATE AS SET FORTH IN (28 RCNY §11-07(b)) USING WORK PRACTICES SET FORTH IN 28 RCNY §11-06(b)(2). 1st DOOR FROM SOUTH AT WEST WALL, 1st DOOR FRAME FROM SOUTH AT WEST WALL IN THE FOYER LOCATED AT APT 1L, 1st STORY, 1st APARTMENT FROM NORTH AT EAST , SECTION ''SOUTH'' (apt 1L), issued 2026-09-22. HPD violation 19241159

311 housing complaints

129 in the last 12 months, 436 in 5 years. Most common: Heat/Hot Water (48), Unsanitary Condition (23), Paint/Plaster (17), Water Leak (16), Door/Window (14).

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: No bedbug filing on record for this year
• 2024: No bedbug filing on record for this year
• 2023: Owner reported 0 infested units
• 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. 4 DOB violations on record. Check on DOB BIS.

Evictions and housing court

0 executed evictions in the last 3 years (4 on record). 0 open HPD cases; 0 harassment findings.

Rent stabilization

106 of 102 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: 106 in 2024, 106 in 2007. Source: DOF tax bills for 2007 and 2024; years with no bill on file are left out.

Owner and management

Owner: DITMAS FLATS LLC. Head officer: YECHIEL WEINBERGER. Managing agent: YECHIEL WEINBERGER. This owner has 59 buildings on record, 54 graded D or F. See the full portfolio.

Last HPD registration Aug 24, 2025. Registration on file through Sep 1, 2026; renewal not yet in the city's data.

Tax lot and city IDs

BBL 3051840006, HPD building ID 249571. HPD Online, ACRIS, DOB BIS.

Nearest subway

• Cortelyou Rd (Q), 6 min walk
• Beverley Rd (Q), 7 min walk
• Newkirk Plaza (B, Q), 10 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.