421 Columbia Street
421 Columbia Street in Carroll Gardens, Brooklyn, has 4 open HPD violations, and no rent-stabilized units are on its tax bill, as of Oct 26, 2026. StreetSpy grade: D (54/100).
Mixed residential & commercial · 6 units · Built 1931
StreetSpy grade: D (Poor, 54/100)
- 4 open housing violations, none in the most serious class.
- 1 open violation is classified rent-impairing under NY Multiple Dwelling Law section 302-a.
- Had 1 rent-stabilized unit on the 2007 tax bill and none on the latest one; ask how the apartment left stabilization.
More open violations per unit than 5 in 10 Brooklyn buildings this size.
- Repairs: Medium (4 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: Medium (1 open DOB violation), records as of Oct 26, 2026
- Registration: Renewal not yet in city data, records as of Oct 3, 2026
Housing code violations (HPD)
4 open violations: 0 class C (immediately hazardous), 1 class B, 3 class A. 0 issued in the last 12 months. 13 on record. Oldest open violation issued 2015-10-28. Newest violation issued 2025-06-09.
HPD recorded no violation closed here in the last 12 months.
1 open violation is classified rent-impairing under NY Multiple Dwelling Law section 302-a. Section 302-a; NY Courts guidance on getting repairs.
- Class B: Items blocking a hallway or exit (hallway). , 2007 ADM CODE REMOVE ALL ENCUMBRANCES CONSISTING OF HOUSEHOLD ITEMS AT PUBLIC HALL, 1st STORY, issued 2023-01-17. HPD violation 15661932
- Class A: Gas defect. HMC: POST, IN A FORM APPROVED BY THE COMMISSIONER, AND MAINTAIN A NOTICE IN A COMMON AREA OF THE BUILDING REGARDING THE PROCEDURES THAT SHOULD BE FOLLOWED WHEN A GAS LEAK IS SUSPECTED, issued 2023-01-17. HPD violation 15661930
- Class A: Damaged plaster or paint (entrance). ADMIN. CODE: POST AND MAINTAIN A PROPER NOTICE ON WALL OF THE ENTRANCE STORY IN ENGLISH AND SPANISH ON THE AVAILABILITY OF THE AGENCYS HOUSING INFORMATION GUIDE. A SAMPLE NOTICE CAN BE FOUND AT WWW.NYC.GOV/HPD., issued 2023-01-17. HPD violation 15661931
- Class A: Damaged plaster or paint (hallway). ADMIN. CODE: POST AND MAINTAIN A PROPER NOTICE ON WALL OF THE ENTRANCE STORY IN ENGLISH AND SPANISH ON THE AVAILABILITY OF THE AGENCYS HOUSING INFORMATION GUIDE. A SAMPLE NOTICE CAN BE FOUND AT WWW.NYC.GOV/HPD. AT PUBLIC HALL, 1st STORY, issued 2015-10-28. HPD violation 10980946
311 housing complaints
7 in the last 12 months, 11 in 5 years. Most common: Water Leak (3), Door/Window (1), Paint/Plaster (1), Plumbing (1), Unsanitary Condition (1).
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: 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: Owner reported 0 infested units
Buildings department (DOB)
1 open DOB violation. 5 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.
Rent-stabilized units on city tax bills: 0 in 2024, 1 in 2007. Source: DOF tax bills for 2007 and 2024; years with no bill on file are left out.
Owner and management
Owner: 421 COLUMBIA STREET REALTY CORp. Head officer: WILLIAM J MUNKS. Managing agent: WILLIAM J MUNKS. See the full portfolio.
Last HPD registration Aug 26, 2025. Registration on file through Sep 1, 2026; renewal not yet in the city's data.
Tax lot and city IDs
BBL 3005340010, HPD building ID 224310. HPD Online, ACRIS, DOB BIS.
Nearest subway
- Smith-9 Sts (F, G), 12 min walk
- Carroll St (F, G), 12 min walk
- Bergen St (F, G), 20 min walk
How the grade is calculated
| Factor | On record | Points |
|---|---|---|
| Open HPD violations | 4 open (1 class B, 3 class A). 1 rent-impairing | −23 |
| 311 housing complaints (12 mo) | 7 | −20 |
| Bedbug reports (3 yr) | None reported | 0 |
| Executed evictions (3 yr) | None | 0 |
| Housing litigation | No open cases | 0 |
| Open DOB violations | 1 open DOB violation | −3 |
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.