324 21st Street

324 21st Street in Sunset Park, Brooklyn, has 41 open HPD violations, 2 of them class C, and no rent-stabilized units are on its tax bill, as of Oct 26, 2026. StreetSpy grade: F (35/100).

Multi-family walk-up · 4 units · Built 1931

StreetSpy grade: F (Severe, 35/100)

• 2 immediately hazardous violations open (the class that covers no heat, pests, lead paint and similar).
• 4 open violations are classified rent-impairing under NY Multiple Dwelling Law section 302-a.
• 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 (41 open, 2 class C), records as of Oct 26, 2026
• Heat and hot water: 2 complaints, 12 mo, records as of Oct 25, 2026
• Pests: Clear (No bedbug filing, 3 yr), records as of Oct 28, 2026
• Safety: Clear (No open DOB violations), records as of Oct 26, 2026
• Registration: Expired Sep 1, 2025, records as of Oct 3, 2026

How the grade works

Housing code violations (HPD)

41 open violations: 2 class C (immediately hazardous), 17 class B, 21 class A, 1 class I (HPD orders such as lead paint or heat orders, not a hazard class). 5 issued in the last 12 months. 56 on record. Oldest open violation issued 2013-12-11. Newest violation issued 2026-05-01.

HPD recorded no violation closed here in the last 12 months.

4 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: No hot water, throughout the apartment, 3rd floor. & 309 M/D LAW ABATE THE NUISANCE CONSISTING OF HOT WATER EXCEEDING ALLOWABLE MAXIMUM TEMPERATURE OF 130 DEGREES AT ALL HOT WATER FIXTURES AT ENTIRE APARTMENT AT APARTMENT 3, 3RD STORY IN THE ENTIRE APARTMENT LOCATED AT APT 3, 3rd STORY, 1st APARTMENT FROM WEST AT NORTH (apt 3), issued 2024-10-23. HPD violation 17363699
• 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 HINGES IN THE ENTRANCE LOCATED AT APT 3, 3rd STORY, 1st APARTMENT FROM WEST AT NORTH (apt 3), issued 2024-10-23. HPD violation 17363700
• Class B: Damaged plaster or paint, ceiling, 2nd room from the north, 2nd floor. REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN A UNIFORM COLOR AT CEILING IN THE 2nd ROOM FROM NORTH LOCATED AT APT 2, 2nd STORY, 1st APARTMENT FROM SOUTH AT WEST (apt 2), issued 2025-12-01. HPD violation 18441383
• Class B: No heat / heating defect, ceiling, 2nd room from the north, 2nd floor. REPLACE WITH NEW THE MISSING HEAT RISER ESCUTCHEON PLATE AT CEILING AT WEST IN THE 2nd ROOM FROM NORTH LOCATED AT APT 2, 2nd STORY, 1st APARTMENT FROM SOUTH AT WEST (apt 2), issued 2025-12-01. HPD violation 18441384
• Class B: Damaged plaster or paint, ceiling, bathroom, 2nd floor. REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN A UNIFORM COLOR AT CEILING IN THE BATHROOM LOCATED AT APT 2, 2nd STORY, 1st APARTMENT FROM SOUTH AT WEST (apt 2), issued 2025-12-01. HPD violation 18441382
• Class B: Damaged plaster or paint, east wall, 2nd floor. HMC: PROPERLY REPAIR OR REPLACE THE BROKEN OR DEFECTIVE BELL BUZZER/INTERCOM SYSTEM FROM MAIN INTERCOM AT BUILDING ENTRANCE TO APARTMENT INTERCOM SYSTEM AT EAST WALL IN THE ENTRANCE LOCATED AT APT 2, 2nd STORY, 1st APARTMENT FROM SOUTH AT WEST (apt 2), issued 2025-12-01. HPD violation 18441381
• Class B: Items blocking a hallway or exit (hallway). , 2007 ADM CODE REMOVE ALL ENCUMBRANCES CONSISTING OF HOUSEHOLD ARTICLES AT PUBLIC HALL, 1st STORY, issued 2025-04-17. HPD violation 17829018
• Class B: Items blocking a hallway or exit (hallway). , 2007 ADM CODE REMOVE ALL ENCUMBRANCES CONSISTING OF HOUSEHOLD ITEMS LEADING TO SCUTTLE LADDER AT PUBLIC HALL, 4th STORY, issued 2024-10-28. HPD violation 17366137

311 housing complaints

3 in the last 12 months, 23 in 5 years. Most common: Heat/Hot Water (2), Paint/Plaster (1).

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

No rent-stabilized units on the tax bill.

Owner and management

Owner: 324 21 ST LLC. Head officer: KATERINA MOUTZOUROULIA. Managing agent: KATERINA MOUTZOUROULIA. See the full portfolio.

Last HPD registration Jul 17, 2024. HPD registration expired Sep 1, 2025 and had not been renewed as of Oct 3, 2026. Buildings with 3+ units must register with HPD every year.

Tax lot and city IDs

BBL 3008980021, HPD building ID 145604. HPD Online, ACRIS, DOB BIS.

Nearest subway

• 25 St (R), 8 min walk
• Prospect Av (R), 9 min walk
• 15 St-Prospect Park (F, G), 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 2026-10-28.