646 9 Avenue
Manhattan, NY 10036BBL 1-01036-0003Map
Owner of record: Amethyst W Housing Corp
646 9 Avenue is a walk-up apartment building built in 1900 in Manhattan, 10036. It has 15 residential units across 5 floors. The owner of record is Amethyst W Housing Corp. HPD has recorded 7 housing violations here, most recently on June 4, 2025. 2 of the 7 most recent violations are still open.
- HPD violations
- 7
- DOB violations
- 4
- ECB violations
- 5
- HPD complaints
- 5
What to know
No open immediately-hazardous violations among recent records.
Date of the most recent HPD inspection that found a problem.
No balance due on recent ECB violations.
Rent stabilization
No rent-stabilized units in 2018–2024 tax bills
Violations
Most recent first. Showing up to 50 per agency.
HPD housing violations · 7
- ANon-hazardous
File annual bedbug report in accordance with hpd rule as described on the back of this notice of violation or as described on hpds website, www.nyc.gov\hpd, search bed bugs.
Jun 4, 2025
Closed — Violation dismissed - ANon-hazardous
File annual bedbug report in accordance with hpd rule as described on the back of this notice of violation or as described on hpds website, www.nyc.gov\hpd, search bed bugs.
Apr 1, 2024
Closed — Violation dismissed - IInformation / order
And is therefore subject to civil penalties, prohibited from certifying violations, and denied the right to recover possession of premises for nonpayment of rent until a valid registration statement is filed.
Nov 15, 2023
Closed — Violation dismissed - ANon-hazardous
File annual bedbug report in accordance with hpd rule as described on the back of this notice of violation or as described on hpds website, www.nyc.gov\hpd, search bed bugs.
Mar 15, 2023
Closed — Violation dismissed - IInformation / order
And is therefore subject to civil penalties, prohibited from certifying violations, and denied the right to recover possession of premises for nonpayment of rent until a valid registration statement is filed.
Oct 24, 2016
Closed — Violation dismissed - BHazardous
Repair the broken or defective plastered surfaces and paint in a uniform color ceiling in the 1st room from east located at apt 5fn, 5th story, 1st apartment from west at north
May 17, 2012 · Apt 5FN
Open — Nov certified late - BHazardous
Repair or replace the carbon monoxide detecting device(s). defective in the entire apartment located at apt 5fn, 5th story, 1st apartment from west at north
May 17, 2012 · Apt 5FN
Open — Nov certified late
DOB building violations · 4
- Low pressure boiler boiler required
Violation issued for failure to file annual boiler 2011 inspection report
Mar 1, 2013
Dob violation - dismissed - Boilers boiler required
Ll6291-local law 62/91 - boilers boiler required
Feb 10, 1997
Dob violation - dismissed - Boilers boiler required
Ll6291-local law 62/91 - boilers boiler required
Mar 18, 1994
Dob violation - dismissed - Boilers boiler required
Ll6291-local law 62/91 - boilers boiler required
Mar 18, 1993
Dob violation - dismissed
ECB violations · 5
- Class - 2
Failure to maintain building in code-complaint manner: lack of a system of automatic sprinklers where require per bc 903.2; 27-954 i observed in the basement two gas dryers and no sprinkler system in place, pro
Jul 18, 2023 · Penalty $1,250
Active - Class - 2
Observed in basement a future on gas line which contrary to fgh 404.15, repair and/or replace
Jul 18, 2023 · Penalty $625
Active - Class - 2
Observed in basement installed two gas dryers all work completed no permits, obtain all permits
Jul 18, 2023 · Penalty $1,250
Active - Class - 2
Failure to maintain pedestrian protection in code compliant manner.note: at time of inspection i observed sidewalk shed on exp1 vertical member footing no longer sound. mudsill was struck and knocked 3 quarters
Jan 8, 2017 · Penalty $2,400
Resolve - Class - 1
Work w/o a permit. noted: at apt 3rn complete gut demo/renovation removed/installing new electric lines,boxes,circuit panel box,outlets switches & lights,removed/installing new plumbing water & waste lines also
Jul 28, 2016 · Penalty $800
Resolve
Complaints
- Heat/hot water
Entire building
Jul 12, 2022 · Apt 3B
Close - Safety
Window guard broken/missing
Feb 2, 2015 · Apt 2FS3FS
Close - Plumbing
Water-leaks
May 1, 2012 · Apt 5FN
Close - Nonconst
Carbon monoxide
Feb 18, 2012 · Apt 2FS
Close - Nonconst
Smoke detector
Feb 18, 2012 · Apt 2FS
Close
Sales history
| Date | Price | Type | Units |
|---|---|---|---|
| Jul 14, 2026 | $500,000 | Coops - walkup apartments | — |
| May 21, 2026 | $251,133 | Coops - walkup apartments | — |
Building details
- Building type
- Walk-up apartment building (C6)
- Year built
- 1900
- Floors
- 5
- Residential units
- 15
- Building area
- 9,090 ft²
- Lot area
- 2,500 ft²
- Zoning
- R8
- Community board
- 104
- Council district
- 3
- Block / lot
- 1036 / 3
- Assessed value
- $868,950
- Landmark / historic district
- No
HPD registration #102649, last renewed Sep 10, 2025.
Questions about 646 9 Avenue
Who owns 646 9 Avenue?
The owner of record in NYC Department of City Planning PLUTO data is Amethyst W Housing Corp.
Does 646 9 Avenue have violations?
Yes. NYC HPD has recorded 7 housing violations at this property.
Is 646 9 Avenue rent stabilized?
No rent-stabilized units appear in its 2018–2024 tax bills. Individual apartments can still be regulated, so request the rent history from NYS Homes and Community Renewal if unsure.
When was 646 9 Avenue built?
City records list 1900 as the year it was built.
How many apartments are in 646 9 Avenue?
It has 15 residential units and 17 units in total.
Source: NYC Open Data (DCP PLUTO, HPD, DOB, ECB/OATH, DOF). Records can lag the city's systems. Data refreshed weekly.