1670 3rd Avenue
1670 3rd Avenue in Carnegie Hill, Manhattan, has 24 open HPD violations, 6 of them class C, and 7 of 16 units are rent-stabilized, as of Oct 26, 2026. StreetSpy grade: D (62/100).
Mixed residential & commercial · 16 units · Built 1905
StreetSpy grade: D (Poor, 62/100)
- 6 immediately hazardous violations open (the class that covers no heat, pests, lead paint and similar).
- The owner's bedbug filings report no infested units in the last 3 years.
- 7 of 16 units are rent-stabilized; 9 on the 2007 tax bill.
More open violations per unit than 7 in 10 Manhattan buildings this size.
- Repairs: High (24 open, 6 class C), records as of Oct 26, 2026
- Heat and hot water: 1 complaint, 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)
24 open violations: 6 class C (immediately hazardous), 11 class B, 7 class A. 1 issued in the last 12 months. 84 on record. Oldest open violation issued 1999-09-14. Newest violation issued 2025-11-05.
0 closed in the last 90 days. Median 48 days from issue to close for the 1 violations closed in the last 12 months.
- Class C: Mold, ceiling, 3rd room from the east, 2nd floor. HMC:TRACE AND REPAIR THE SOURCE AND ABATE THE NUISANCE CONSISTING OF MOLD ... AT THE CEILING APPROX ( 4 SQ FT), EAST WALL (APPROX 32 SQ FT) AND SOUTH WALL (APPROX 16 SQ FT) IN THE 3rd ROOM FROM EAST LOCATED AT APT 2C, 2nd STORY, 1st APARTMENT FROM SOUTH AT WEST (apt 2C), issued 2016-05-25. HPD violation 11243039
- Class C: Mold, ceiling, kitchen, 2nd floor. HMC:TRACE AND REPAIR THE SOURCE AND ABATE THE NUISANCE CONSISTING OF MOLD ... AT THE CEILING (APPROX 42 SQ FT) IN THE KITCHEN LOCATED AT APT 2C, 2nd STORY, 1st APARTMENT FROM SOUTH AT WEST (apt 2C), issued 2016-05-25. HPD violation 11243031
- Class C: , 2012 HMC & § 309 MDL: ABATE THE NUISANCE CONSISTING OF EXCESSIVE STORAGE OF MATERIAL OF HOUSEHOLD ITEMS AND CLOTHING IN THE ENTIRE APARTMENT LOCATED AT APT 2C, 2nd STORY, 1st APARTMENT FROM SOUTH AT WEST (apt 2C), issued 2016-05-25. HPD violation 11243024
- Class C: No heat / heating defect (basement). REPLACE WITH NEW THE MISSING FIRE RATED SELF CLOSING DOOR AT THE BOILER ROOM AT CELLAR, issued 2016-05-25. HPD violation 11245431
- Class C: No heat / heating defect (hallway). D26-17.10 ADM CODE PROVIDE READY ACCESS TO BUILDING'S HEATING SYSTEM NEAR MAILBOXES 1ST STY PUBLIC HALL., issued 2008-06-03. HPD violation 2313881
- Class C: No heat / heating defect (hallway). POST NOTICE, IN FORM APPROVED BY THE DEPARTMENT, STATING THE NAME AND LOCATION OF THE PERSON DESIGNATED BY THE OWNER TO HAVE KEY TO BUILDINGS HEATING SYSTEM 1 STY PUBLIC HALL AND ON BOILER ROOM DOOR., issued 1999-09-14. HPD violation 2313909
- Class B: Missing or broken smoke / CO detector, throughout the apartment, 2nd floor. SECTION 27-2046.1 HMC: REPAIR OR REPLACE THE CARBON MONOXIDE DETECTING DEVICE(S). MISSING IN THE ENTIRE APARTMENT LOCATED AT APT 2A, 2nd STORY, 1st APARTMENT FROM WEST AT NORTH (apt 2A), issued 2014-11-13. HPD violation 10444548
- Class B: Floor or stair defect (basement). D26-10.01 ADM CODE PROPERLY REPAIR THE BROKEN OR DEFECTIVE PAVING CELLAR FLOOR THROUGHOUT., issued 2008-06-03. HPD violation 2313897
311 housing complaints
1 in the last 12 months, 3 in 5 years. Most common: Heat/Hot Water (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: Owner reported 0 infested units
- 2022: Owner reported 0 infested units
- 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
0 executed evictions in the last 3 years (0 on record). 0 open HPD cases; 0 harassment findings.
Rent stabilization
7 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: 7 in 2024, 9 in 2007. Source: DOF tax bills for 2007 and 2024; years with no bill on file are left out.
Owner and management
Owner: 1670 THIRD AVENUE OWNER, LLC. Head officer: KEN KONFONG. Managing agent: KEN KONFONG. See the full portfolio.
Last HPD registration Oct 8, 2025. Registration on file through Sep 1, 2026; renewal not yet in the city's data.
Tax lot and city IDs
BBL 1015220037, HPD building ID 1866. HPD Online, ACRIS, DOB BIS.
Nearest subway
- 96 St (6), 3 min walk
- 96 St (Q), 4 min walk
- 86 St (4, 5, 6), 8 min walk
How the grade is calculated
| Factor | On record | Points |
|---|---|---|
| Open HPD violations | 24 open (6 class C, 11 class B, 7 class A) | −35 |
| 311 housing complaints (12 mo) | 1 | −3 |
| Bedbug reports (3 yr) | None reported | 0 |
| Executed evictions (3 yr) | None | 0 |
| 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.