673 Union Street
673 Union Street in Park Slope, Brooklyn, has 72 open HPD violations, 1 of them class C, and 8 of 8 units are rent-stabilized, as of Oct 26, 2026. StreetSpy grade: D (52/100).
Multi-family walk-up · 8 units · Built 1920
StreetSpy grade: D (Poor, 52/100)
- 1 immediately hazardous violation 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.
- The owner has 3 buildings on record; 2 graded D or F.
- 8 of 8 units are rent-stabilized.
More open violations per unit than 9 in 10 Brooklyn buildings this size.
- Repairs: High (72 open, 1 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: Medium (1 open DOB violation), records as of Oct 26, 2026
- Registration: Through Sep 1, 2027, records as of Oct 3, 2026
Housing code violations (HPD)
72 open violations: 1 class C (immediately hazardous), 57 class B, 14 class A. 1 issued in the last 12 months. 86 on record. Oldest open violation issued 1989-05-16. Newest violation issued 2026-05-06.
1 closed in the last 90 days. Median 85 days from issue to close for the 1 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: Lead paint hazard, kitchen. REMOVE OR COVER IN A MANNER APPROVED BY THE DEPARTMENT THE PEELING LEAD PAINT CEILING PRIVATE HALL & WEST WALL KITCHEN 2 STY EAST APT 3R. LOCATED AT APT 3R (apt 3R), issued 1989-05-16. HPD violation 2205334
- Class B: Broken window or sash, 2nd window from the north, kitchen, 2nd floor. HMC: PROPERLY REPAIR OR REPLACE THE BROKEN OR DEFECTIVE COUNTER BALANCE AT LOWER WINDOW SASH AT 2ND WINDOW FROM NORTH AT EAST IN THE KITCHEN LOCATED AT APT 2L, 2nd STORY, 1st APARTMENT FROM SOUTH AT WEST (apt 2L), issued 2025-08-19. HPD violation 18161907
- Class B: Door, lock or intercom defect, 2nd floor. REPLACE WITH NEW THE MISSING DOOR KNOB IN THE ENTRANCE LOCATED AT APT 2L, 2nd STORY, 1st APARTMENT FROM SOUTH AT WEST (apt 2L), issued 2025-08-19. HPD violation 18161909
- Class B: Damaged plaster or paint, ceiling, bathroom, 2nd floor. REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN A UNIFORM COLOR AT THE CEILING AND NORTH WALL IN THE BATHROOM LOCATED AT APT 2L, 2nd STORY, 1st APARTMENT FROM SOUTH AT WEST (apt 2L), issued 2025-08-19. HPD violation 18161908
- Class B: Missing or broken smoke / CO detector, 1st floor. SECTION 27-2046.1, 2046.2 HMC: PROVIDE AN APPROVED AND OPERATIONAL CARBON MONOXIDE DETECTING DEVICE, INSTALLED IN ACCORDANCE WITH APPLICABLE LAW AND RULES. LOCATED AT APT 1L, 1st STORY, 1st APARTMENT FROM WEST AT NORTH (apt 1L), issued 2013-10-30. HPD violation 10020439
- Class B: Missing or broken smoke / CO detector, 1st floor. REPAIR OR REPLACE THE SMOKE DETECTOR DEFECTIVE LOCATED AT APT 1L, 1st STORY, 1st APARTMENT FROM WEST AT NORTH (apt 1L), issued 2013-10-30. HPD violation 10020441
- Class B: Mold, west wall, 1st room from the north, 1st floor. SECTION 27-2005 HMC:TRACE AND REPAIR THE SOURCE AND ABATE THE NUISANCE CONSISTING OF MOLD ... APPROXIMATELY 36 SQ FT. AT WEST WALL IN THE 1st ROOM FROM NORTH LOCATED AT APT 1L, 1st STORY, 1st APARTMENT FROM SOUTH AT WEST (apt 1L), issued 2013-01-18. HPD violation 9705856
- Class B: Damaged plaster or paint, west wall, bathroom, 1st floor. REPLACE WITH NEW THE MISSING CERAMIC TILE AT WEST WALL. IN THE BATHROOM LOCATED AT APT 1L, 1st STORY, 1st APARTMENT FROM SOUTH AT WEST (apt 1L), issued 2013-01-18. HPD violation 9705899
311 housing complaints
0 in the last 12 months, 6 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: 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: No bedbug filing on record for this year
- 2021: No bedbug filing on record for this year
Buildings department (DOB)
1 open DOB violation, a Local Law violation issued before 2000. 1 DOB violation 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
8 of 8 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: 8 in 2024, 8 in 2007. Source: DOF tax bills for 2007 and 2024; years with no bill on file are left out.
Owner and management
Owner: PHILIP DELDUCA. Managing agent: ELIZa m DELDUCa. This owner has 3 buildings on record, 2 graded D or F. See the full portfolio.
Last HPD registration Jul 24, 2026, valid through Sep 1, 2027.
Tax lot and city IDs
BBL 3009520069, HPD building ID 383804. HPD Online, ACRIS, DOB BIS.
Nearest subway
- Union St (R), 1 min walk
- Bergen St (2, 3), 9 min walk
- Atlantic Av-Barclays Ctr (D, N, R), 9 min walk
How the grade is calculated
| Factor | On record | Points |
|---|---|---|
| Open HPD violations | 72 open (1 class C, 57 class B, 14 class A). 3 rent-impairing | −45 |
| 311 housing complaints (12 mo) | None | 0 |
| 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, a Local Law violation issued before 2000 | −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.