621 Lefferts Avenue

621 Lefferts Avenue in Crown Heights, Brooklyn, has 96 open HPD violations, 41 of them class C, and no rent-stabilized units are on its tax bill, as of Oct 24, 2026. StreetSpy grade: D (54/100).

Mixed residential & commercial · 122 units · Built 1926

StreetSpy grade: D (Poor, 54/100)

• 41 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.
• 32 heat or hot water complaints to 311 in the last 12 months.

More open violations per unit than 7 in 10 Brooklyn buildings this size.

• Repairs: High (96 open, 41 class C), records as of Oct 24, 2026
• Heat and hot water: 32 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: Through Sep 1, 2027, records as of Oct 3, 2026

How the grade works

Housing code violations (HPD)

96 open violations: 41 class C (immediately hazardous), 42 class B, 13 class A. 90 issued in the last 12 months. 855 on record. Oldest open violation issued 1998-01-20. Newest violation issued 2026-09-14.

23 closed in the last 90 days. Median 556 days from issue to close for the 213 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: Self-closing door not working, 3rd floor. , 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 SET IN THE ENTRANCE LOCATED AT APT C12, 3rd STORY, 2nd APARTMENT FROM WEST AT NORTH (apt C12), issued 2026-09-14. HPD violation 19208474
• Class C: Gas defect, kitchen, 3rd floor. PROVIDE AN ADEQUATE SUPPLY OF GAS TO THE FIXTURES NO GAS AT RANGE IN THE KITCHEN LOCATED AT APT C12, 3rd STORY, 2nd APARTMENT FROM WEST AT NORTH (apt C12), issued 2026-09-14. HPD violation 19208472
• Class C: Gas defect, kitchen, 3rd floor. PROVIDE AN ADEQUATE SUPPLY OF GAS TO THE FIXTURES AT RANGE IN THE KITCHEN LOCATED AT APT C12, 3rd STORY, 2nd APARTMENT FROM WEST AT NORTH , SECTION ''CENTER'' (apt C12), issued 2026-07-01. HPD violation 19043210
• Class C: Mice, throughout the apartment, 5th floor. HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF MICE IN THE ENTIRE APARTMENT LOCATED AT APT E9, 5th STORY, 5th APARTMENT FROM WEST AT NORTH (apt E9), issued 2026-06-29. HPD violation 19033426
• Class C: Lead paint hazard, 3rd room from the north, 5th floor. - CORRECT THE LEAD-BASED PAINT HAZARD - PAINT THAT TESTED POSITIVE FOR LEAD CONTENT AND THAT IS PEELING OR ON A DETERIORATED SUBSURFACE - USING WORK PRACTICES SET FORTH IN 28 RCNY §11-06(B)(2) SOUTH WALL, WEST WALL IN THE 3rd ROOM FROM NORTH LOCATED AT APT E9, 5th STORY, 8th APARTMENT FROM WEST AT NORTH (apt E9), issued 2026-06-29. HPD violation 19042231
• Class C: Lead paint hazard, west wall, foyer, 5th floor. - CORRECT THE LEAD-BASED PAINT HAZARD - PAINT THAT TESTED POSITIVE FOR LEAD CONTENT AND THAT IS PEELING OR ON A DETERIORATED SUBSURFACE - USING WORK PRACTICES SET FORTH IN 28 RCNY §11-06(B)(2) BASEBOARD AT WEST WALL, WEST WALL IN THE FOYER LOCATED AT APT E9, 5th STORY, 8th APARTMENT FROM WEST AT NORTH (apt E9), issued 2026-06-29. HPD violation 19042230
• Class C: Lead paint hazard, 1st window frame from the north, east wall, 3rd room from the north, 5th 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 WINDOW FRAME FROM NORTH AT EAST WALL IN THE 3rd ROOM FROM NORTH LOCATED AT APT E9, 5th STORY, 8th APARTMENT FROM WEST AT NORTH (apt E9), issued 2026-06-29. HPD violation 19042232
• Class C: Lead paint hazard, 1st closet from the south, west wall, 5th floor. - CORRECT THE LEAD-BASED PAINT HAZARD - PAINT THAT TESTED POSITIVE FOR LEAD CONTENT AND THAT IS PEELING OR ON A DETERIORATED SUBSURFACE - USING WORK PRACTICES SET FORTH IN 28 RCNY §11-06(B)(2) 1st CLOSET FROM SOUTH AT WEST WALL DOOR, 2nd CLOSET FROM SOUTH AT WEST WALL DOOR, WEST WALL IN THE 1st PRIVATE HALLWAY FROM NORTH LOCATED AT APT E9, 5th STORY, 8th APARTMENT FROM WEST AT NORTH (apt E9), issued 2026-06-29. HPD violation 19042233

311 housing complaints

55 in the last 12 months, 281 in 5 years. Most common: Heat/Hot Water (32), Door/Window (7), Paint/Plaster (6), Plumbing (5), Unsanitary Condition (5).

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 3 infested, 3 treated, 0 re-infested

Buildings department (DOB)

No open DOB violations. 6 DOB violations on record. Check on DOB BIS.

Evictions and housing court

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

Rent stabilization

No rent-stabilized units on the tax bill.

Owner and management

Owner: M & M CROWN REALTY, LLC. Head officer: MICHAEL NIAMONITAKIS. Managing agent: MERIDIAN PROPERTIES LLC. This owner has 91 buildings on record, 60 graded D or F. See the full portfolio.

Last HPD registration Jul 23, 2026, valid through Sep 1, 2027.

Tax lot and city IDs

BBL 3013260045, HPD building ID 323600. HPD Online, ACRIS, DOB BIS.

Nearest subway

• Kingston Av (3), 9 min walk
• Sterling St (2, 5), 11 min walk
• Crown Hts-Utica Av (3, 4), 11 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.