434 79th Street

434 79th Street in Bay Ridge, Brooklyn, has 8 open HPD violations, and 16 of 16 units are rent-stabilized, as of Oct 25, 2026. StreetSpy grade: B (82/100).

Multi-family walk-up · 16 units · Built 1942

StreetSpy grade: B (Good, 82/100)

• 8 open housing violations, none in the most serious class.
• No housing complaints to 311 in the last 12 months.
• The owner's bedbug filings report no infested units in the last 3 years.
• 16 of 16 units are rent-stabilized.

• Repairs: Medium (8 open), records as of Oct 25, 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 27, 2026
• Safety: Clear (No open DOB violations), records as of Oct 23, 2026
• Registration: Renewal not yet in city data, records as of Oct 3, 2026

How the grade works

Housing code violations (HPD)

8 open violations: 0 class C (immediately hazardous), 5 class B, 3 class A. 0 issued in the last 12 months. 9 on record. Oldest open violation issued 2021-03-11. Newest violation issued 2021-07-09. No new HPD violation has been issued here since 2021. Most of the open count is older violations that were never closed.

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

• Class B: Mold, ceiling, bathroom, 1st floor. HMC: TRACE AND REPAIR THE SOURCE AND ABATE THE VISIBLE MOLD CONDITION... (APPROX 1 SQ FT) ON CEILING IN THE BATHROOM LOCATED AT APT 1B, 1st STORY, 1st APARTMENT FROM NORTH AT EAST ORIGINAL VIOLATION 14067430 ISSUED 09-MAR-21 HAS BEEN UPGRADED TO CLASS B PER ADMINISTRATIVE CODE §27-2017.3a(3)(a) or (b). (apt 1B), issued 2021-07-09. HPD violation 14430238
• Class B: Damaged plaster or paint, ceiling, bathroom, 1st floor. REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN A UNIFORM COLOR THE CEILING, NORTH WALL IN THE BATHROOM LOCATED AT APT 1B, 1st STORY, 1st APARTMENT FROM NORTH AT EAST (apt 1B), issued 2021-03-11. HPD violation 14067429
• Class B: Missing or broken smoke / CO detector, 1st floor. HMC: REPAIR OR REPLACE THE CARBON MONOXIDE DETECTING DEVICE(S). MISSING LOCATED AT APT 1B, 1st STORY, 1st APARTMENT FROM NORTH AT EAST (apt 1B), issued 2021-03-11. HPD violation 14067431
• Class B: Missing or broken smoke / CO detector, 1st floor. REPAIR OR REPLACE THE SMOKE DETECTOR MISSING LOCATED AT APT 1B, 1st STORY, 1st APARTMENT FROM NORTH AT EAST (apt 1B), issued 2021-03-11. HPD violation 14067434
• Class B: Leak or water damage, ceiling, bathroom, 1st floor. , 2027 HMC: PROPERLY REPAIR THE SOURCE AND ABATE THE EVIDENCE OF A WATER LEAK AT CEILING IN THE BATHROOM LOCATED AT APT 1B, 1st STORY, 1st APARTMENT FROM NORTH AT EAST (apt 1B), issued 2021-03-11. HPD violation 14067428
• 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 2021-03-11. HPD violation 14067438
• Class A: Fire escape defect. AND DEPT. RULES AND REGULATIONS. SCRAPE AND REMOVE RUST SCALES AND PAINT WITH 2 COATS OF PAINT THE BALCONY AT ALL STORIES, BUILDING FRONT AT FIRE ESCAPE, issued 2021-03-11. HPD violation 14067439
• Class A: Gas defect (hallway). 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 AT PUBLIC HALL, 1st STORY, issued 2021-03-11. HPD violation 14067436

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: 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: Owner reported 0 infested units
• 2021: Owner reported 0 infested units

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

16 of 16 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: 16 in 2024, 16 in 2007. Source: DOF tax bills for 2007 and 2024; years with no bill on file are left out.

Owner and management

Owner: 79TH STREET OWNERS CORP.. Head officer: JON R DIACOMANOLIS. Managing agent: NARROWS MANAGEMENT. See the full portfolio.

Last HPD registration Aug 7, 2025. Registration on file through Sep 1, 2026; renewal not yet in the city's data.

Tax lot and city IDs

BBL 3059800021, HPD building ID 175340. HPD Online, ACRIS, DOB BIS.

Nearest subway

• 77 St (R), 4 min walk
• 86 St (R), 7 min walk
• Bay Ridge Av (R), 11 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.