473 Warren Street
473 Warren Street in Carroll Gardens, Brooklyn, has 27 open HPD violations, 3 of them class C, and no rent-stabilized units are on its tax bill, as of Oct 26, 2026. StreetSpy grade: F (45/100).
Multi-family walk-up · 6 units · Built 1900
StreetSpy grade: F (Severe, 45/100)
- 3 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.
- 1 eviction carried out by marshals in the last 3 years.
- 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 8 in 10 Brooklyn buildings this size.
- Repairs: High (27 open, 3 class C), 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: Clear (No open DOB violations), records as of Oct 26, 2026
- Registration: Renewal not yet in city data, records as of Oct 3, 2026
Housing code violations (HPD)
27 open violations: 3 class C (immediately hazardous), 15 class B, 9 class A. 0 issued in the last 12 months. 41 on record. Oldest open violation issued 2008-06-04. Newest violation issued 2024-04-12. No new HPD violation has been issued here since 2024. Most of the open count is older violations that were never closed.
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 heat / heating defect (hallway). D26-17.10 ADM CODE POST NOTICE, IN FORM APPROVED BY THE DEPARTMENT, STATING THE NAME AND LOCATION OF THE PERSON DESIGNATED BY THE OWNER TO HAVE KEY TO BUILDING'S HEATING SYSTEM 1 STY PUBLIC HALL & ON BOILER ROOM DOOR., issued 2008-06-04. HPD violation 2223147
- Class C: No heat / heating defect (basement). D26-17.10 ADM CODE PROVIDE READY ACCESS TO BUILDING'S HEATING SYSTEM CELLAR DOOR LOCKED., issued 2008-06-04. HPD violation 2223153
- Class C: Door, lock or intercom defect (entrance). D26-10.01 ADM CODE & 309 M/D LAW ABATE THE NUISANCE CONSISTING OF DOUBLE CYLINDER KEY OPERATED LOCK ENTRANCE 3 STY APT 3F. LOCATED AT APT 3F (apt 3F), issued 2008-06-04. HPD violation 2223163
- Class B: Door, lock or intercom defect (hallway). D26-10.01 ADM CODE PROPERLY SECURE THE LOOSE MARBLE SADDLE UNDER 1 STY PUBLIC HALL VESTIBULE DOOR., issued 2008-06-04. HPD violation 2223157
- Class B: Leak or water damage (roof). D26-10.01 ADM CODE REPAIR THE ROOF SO THAT IT WILL NOT LEAK OVER 3 STY APT 3 FRONT. LOCATED AT APT 3 (apt 3), issued 2008-06-04. HPD violation 2223159
- Class B: Damaged plaster or paint (basement). D26-10.01 ADM CODE PROPERLY REPAIR WITH SIMILAR MATERIAL THE BROKEN OR DEFECTIVE CEMENT PLASTER CEILING CELLAR AT REAR EAST., issued 2008-06-04. HPD violation 2223145
- Class B: D26-10.01 ADM CODE & 309 M/D LAW ABATE THE NUISANCE CONSISTING OF MATTRESS STORED CELLAR AT FRONT., issued 2008-06-04. HPD violation 2223146
- Class B: Floor or stair defect (hallway). D26-10.01 ADM CODE REMOVE THE TORN AND/OR LOOSE FLOOR COVERING 1 & 3 STY PUBLIC HALL., issued 2008-06-04. HPD violation 2223158
311 housing complaints
0 in the last 12 months, 0 in 5 years.
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: 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: 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
1 executed evictions in the last 3 years (1 on record). 0 open HPD cases; 0 harassment findings.
Rent stabilization
No rent-stabilized units on the tax bill.
Owner and management
Owner: JOSEPH R BORKER. Managing agent: JOSEPH BORKER. This owner has 2 buildings on record, 1 graded D or F. See the full portfolio.
Last HPD registration Nov 20, 2025. Registration on file through Sep 1, 2026; renewal not yet in the city's data.
Tax lot and city IDs
BBL 3003930047, HPD building ID 388101. HPD Online, ACRIS, DOB BIS.
Nearest subway
- Bergen St (F, G), 7 min walk
- Atlantic Av-Barclays Ctr (D, N, R), 7 min walk
- Hoyt-Schermerhorn Sts (A, C, G), 7 min walk
How the grade is calculated
| Factor | On record | Points |
|---|---|---|
| Open HPD violations | 27 open (3 class C, 15 class B, 9 class A). 4 rent-impairing | −45 |
| 311 housing complaints (12 mo) | None | 0 |
| Bedbug reports (3 yr) | None reported | 0 |
| Executed evictions (3 yr) | 1 | −10 |
| Housing litigation | No open cases | 0 |
| Open DOB violations | None | 0 |
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.