170 Union Street

170 Union Street in Carroll Gardens, Brooklyn, has 23 open HPD violations, 4 of them class C, and 6 of 8 units are rent-stabilized, as of Oct 25, 2026. StreetSpy grade: F (32/100).

Multi-family walk-up · 8 units · Built 1900

StreetSpy grade: F (Severe, 32/100)

• 4 immediately hazardous violations open (the class that covers no heat, pests, lead paint and similar).
• 1 open violation is classified rent-impairing under NY Multiple Dwelling Law section 302-a.
• 3 heat or hot water complaints to 311 in the last 12 months.
• 6 of 8 units are rent-stabilized.

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

• Repairs: High (23 open, 4 class C), records as of Oct 25, 2026
• Heat and hot water: 3 complaints, 12 mo, records as of Oct 25, 2026
• Pests: Clear (Owner reported none, 3 yr), records as of Oct 27, 2026
• Safety: Medium (1 open DOB violation), 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)

23 open violations: 4 class C (immediately hazardous), 14 class B, 5 class A. 10 issued in the last 12 months. 31 on record. Oldest open violation issued 2008-08-20. Newest violation issued 2026-05-06.

0 closed in the last 90 days. Median 55 days from issue to close for the 1 violations closed 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 C: Self-closing door not working (entrance). , 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 AT VESTIBULE DOOR, issued 2025-12-30. HPD violation 18534695
• Class C: Self-closing door not working (entrance). , 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 AT BUILDING ENTRANCE , 1st STORY, issued 2025-12-08. HPD violation 18486207
• Class C: Mice, throughout the apartment, 3rd floor. HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF MICE IN THE ENTIRE APARTMENT LOCATED AT APT 3L, 3rd STORY, 1st APARTMENT FROM NORTH AT EAST (apt 3L), issued 2023-07-27. HPD violation 16123450
• Class C: No heat / heating defect (basement). PROVIDE READY ACCESS TO BUILDINGS HEATING SYSTEM CELLAR DOOR LOCKED., issued 2008-08-20. HPD violation 2201753
• Class B: Broken window or sash, 1st window from the west, 1st room from the north, 3rd floor. HMC: PROPERLY REPAIR OR REPLACE THE BROKEN OR DEFECTIVE COUNTERBALANCE AT LOWER SASH AT 1ST WINDOW FROM WEST AT NORTH IN THE 1st ROOM FROM NORTH LOCATED AT APT 3L, 3rd STORY, 1st APARTMENT FROM NORTH AT EAST (apt 3L), issued 2025-12-30. HPD violation 18534694
• Class B: Missing or broken smoke / CO detector, throughout the apartment, 3rd floor. (B)(1)(A) HMC, § 12-01, § 12-03 RCNY REPAIR, REPLACE OR PROVIDE AN APPROVED AND OPERATIONAL SMOKE DETECTING DEVICE, INSTALLED IN ACCORDANCE WITH DEPARTMENT OF BUILDINGS RULES AND REGULATIONS MISSING IN THE ENTIRE APARTMENT LOCATED AT APT 3L, 3rd STORY, 1st APARTMENT FROM NORTH AT EAST (apt 3L), issued 2025-12-30. HPD violation 18534693
• Class B: Items blocking a hallway or exit (hallway). , 2007 ADM CODE REMOVE ALL ENCUMBRANCES CONSISTING OF HOUSEHOLD ITEMS AND BICYCLE AT PUBLIC HALL, 4th STORY, issued 2025-12-30. HPD violation 18534696
• Class B: Missing or broken smoke / CO detector, throughout the apartment, 3rd floor. (B)(1)(B) HMC, § 12-06, § 12-07, § 12-09 RCNY REPAIR, REPLACE OR PROVIDE AN APPROVED AND OPERATIONAL CARBON MONOXIDE DETECTING DEVICE, INSTALLED IN ACCORDANCE WITH APPLICABLE LAW AND RULES MISSING IN THE ENTIRE APARTMENT LOCATED AT APT 3L, 3rd STORY, 1st APARTMENT FROM NORTH AT EAST (apt 3L), issued 2025-12-30. HPD violation 18534692

311 housing complaints

8 in the last 12 months, 10 in 5 years. Most common: Heat/Hot Water (3), Unsanitary Condition (2), Door/Window (1), Plumbing (1), Water Leak (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, 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

6 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: 6 in 2024, 6 in 2007. Source: DOF tax bills for 2007 and 2024; years with no bill on file are left out.

Owner and management

Owner: NICHOLAS TRIBUZIO. This owner has 3 buildings on record, 2 graded D or F. See the full portfolio.

Last HPD registration Jul 28, 2026, valid through Sep 1, 2027.

Tax lot and city IDs

BBL 3003430013, HPD building ID 383418. HPD Online, ACRIS, DOB BIS.

Nearest subway

• Carroll St (F, G), 7 min walk
• Bergen St (F, G), 11 min walk
• Smith-9 Sts (F, G), 15 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.