# 646 9th Avenue, Manhattan, NY 10036

BBL 1010360003 · Block 1036 · Lot 3 · BIN 1025004  
Canonical page: https://nycpropertyfacts.com/ny/manhattan/646-9th-avenue-1010360003  
Last updated: 2026-11-05 · Open-item counts as of 2026-11-06

## Summary

646 9th Avenue (Manhattan, NY 10036; tax lot BBL 1010360003) is a 15-unit walk-up apartment building (building class C6: walk-up co-op), built around 1900, on a 2,500 sq ft lot zoned R8. City tax records list the owner as AMETHYST W HOUSING CORP. The Department of Finance's final market value for tax year 2027 is $1,931,000. As of November 6, 2026, NYC Open Data shows five DOB jobs with a permit issued but no sign-off, three active ECB violations and two open HPD violations. There were nine 311 requests in the past 12 months and one HPD complaint since 2019. (Source: NYC Open Data — DOB, HPD, OATH, DOF, DCP and ACRIS datasets — compiled by NYC Property Facts.)

How to cite: NYC Property Facts, “646 9th Avenue, Manhattan, NY 10036 (BBL 1010360003)”, data as of 2026-11-06, https://nycpropertyfacts.com/ny/manhattan/646-9th-avenue-1010360003. Source: NYC Open Data.

## Neighborhood

Midtown-Times Square: https://nycpropertyfacts.com/ny/manhattan/neighborhoods/midtown-times-square

- Open HPD violations: https://nycpropertyfacts.com/ny/manhattan/neighborhoods/midtown-times-square/open-hpd-violations
- Active DOB violations: https://nycpropertyfacts.com/ny/manhattan/neighborhoods/midtown-times-square/active-dob-violations
- Active ECB violations: https://nycpropertyfacts.com/ny/manhattan/neighborhoods/midtown-times-square/active-ecb-violations
- Open DOB jobs: https://nycpropertyfacts.com/ny/manhattan/neighborhoods/midtown-times-square/open-dob-jobs
- Unpaid OATH tickets: https://nycpropertyfacts.com/ny/manhattan/neighborhoods/midtown-times-square/unpaid-oath-tickets

## Open items

| Item | Count |
|---|---|
| Open DOB jobs (permit issued, not signed off) | 5 |
| Active DOB violations | 0 |
| Active ECB violations | 3 |
| Open HPD violations | 2 |
| OATH tickets with unpaid balance | 0 |

## Lot & building

- Owner of record: AMETHYST W HOUSING CORP
- Building class: C6 – Walk-up co-op
- Year built: 1900
- Floors: 5
- Units: 15 residential / 17 total
- Lot area: 2,500 sq ft · Building area: 9,090 sq ft
- Zoning: R8, C1-5, CL
- Source: PLUTO (Dept. of City Planning) (https://data.cityofnewyork.us/d/64uk-42ks), data as of 2026-11-06

## Tax assessment

- Tax year 2027 (final roll): market value $1,931,000, assessed value $868,950, tax class 2
- Source: DOF Property Valuation and Assessment Data (https://data.cityofnewyork.us/d/8y4t-faws)

## Sales & deeds (ACRIS)

Deeds recorded with the City Register. amount 0 usually means a non-market transfer. lots_in_deed > 1 means the price covers several lots.

| Date | Status | Description | Source |
|---|---|---|---|
| 1991-11-12 | recorded (DEED) | DEED dated 1991-11-12 from AMETHYST WEST HSG CORP to AMETHYST WEST HSG ETC, no price stated ($0). | bnx9-e6tj |
| 1984-06-24 | recorded (DEED) | DEED dated 1984-06-24 from HOLLMAN, GLADYS B.L.; 6469 REALTY CORP. to AMETHYST W. HOUSNG CORP., no price stated ($0). | bnx9-e6tj |
| 1983-02-01 | recorded (DEED) | DEED dated 1983-02-01 from LUBLIN, CHARLES to 6469 REALTY CORP., no price stated ($0). | bnx9-e6tj |
| 1978-12-28 | recorded (DEED) | DEED dated 1978-12-28 from LUBLIN, EDWARD L TR to 6469 REALTY CORP, no price stated ($0). | bnx9-e6tj |
| 1978-11-30 | recorded (DEED) | DEED dated 1978-11-30 from SYLVAN, ISREAL I to PALEW EQUITIES LTD, no price stated ($0) for a deed covering 2 lots. | bnx9-e6tj |
| 1978-06-06 | recorded (DEED) | DEED dated 1978-06-06 from LUBLIN, MARTIN to LUBLIN, EDWARD L, no price stated ($0). | bnx9-e6tj |
| 1978-03-06 | recorded (DEED) | DEED dated 1978-03-06 from LUBLIN, MARTIN to LUBLIN, EDWARD L, no price stated ($0). | bnx9-e6tj |
| 1976-05-24 | recorded (DEED) | DEED dated 1976-05-24 from LMS AMERICAN HOLDINGS; MID CENTRAL PROPERTIES; 644-56 NINTH JT VENTURE to LUBLIN, EDWARD L TR; LUBLIN, CHARLES; HOLLMAN, GLADYS B; LUBLIN, LAURENCE; LUBLIN, MARTIN, no price stated ($0). | bnx9-e6tj |
| 1973-03-08 | recorded (DEED) | DEED dated 1973-03-08 from MID-CENTRAL PROPERTIES to MID-CENTRAL PROPERTIES; L M S AMERICAN HOLDINGS; 644-56 NINTH JT VENTURE, no price stated ($0) for a deed covering 5 lots. | bnx9-e6tj |
| 1972-07-21 | recorded (DEED) | DEED dated 1972-07-21 from LUBLIN, MARTIN; LUBLIN, GLADYS B; HOLLMAN, GLADYS B AKA; LUBLIN, LAURENCE; LUBLIN, EDWARD L; LUBLIN, EMIL; LUBLIN, CHARLES to GOTHAM MORTGAGEES INC, no price stated ($0). | bnx9-e6tj |
| 1972-07-21 | recorded (DEED) | DEED dated 1972-07-21 from GOTHAM MORTGAGEES INC to MID-CENTRAL PROPERTIES, no price stated ($0) for a deed covering 2 lots. | bnx9-e6tj |
| 1966-03-29 | recorded (DEED) | DEED dated 1966-03-29 from LUBIN EMIL(TR); HOLLMAN GLADYS B.(TR); LUBIN ISADOR(DEC'D) to LUBIN EDWARD L., no price stated ($0). | bnx9-e6tj |
| 1966-03-29 | recorded (DEED) | DEED dated 1966-03-29 from LUBIN ISADOR(DEC'D); HOLLMAN GLADOP B(TR); LUBIN EMIL(TR) to LUBIN LAURENCE E., no price stated ($0). | bnx9-e6tj |

## Open DOB jobs and recent work permits

A DOB "job" is an application to do construction work. status "open" = a permit was issued but DOB has no record of final sign-off. Work permits are listed with type "work_permit" and their DOB permit status (they are not counted as open items).

| Date | Status | Description | Source |
|---|---|---|---|
| 2018-08-22 | open (PERMIT ISSUED - ENTIRE JOB/WORK) | BIS job 122812420 (A2 – Alteration with multiple work types (no change to use/occupancy)): PERMIT ISSUED - ENTIRE JOB/WORK — permit issued, no sign-off on record. INTERIOR RENOVATION FOR SOFT DRINK STORE, NO CHANGE IN USE, OCCUPANCY OR EGRESS | ic3t-wcy2 |
| 2016-03-08 | open (PERMIT ISSUED - ENTIRE JOB/WORK) | BIS job 122471574 (A1 – Major alteration (changes use, egress or occupancy)): PERMIT ISSUED - ENTIRE JOB/WORK — permit issued, no sign-off on record. CONSTRUCT ROOF DECK ACCESSORY AREA TO MULTIPLE DWELLING. CERTIFICATE OF OCCUPANCY WILL BE OBTAINED. | ic3t-wcy2 |
| 2015-03-05 | open (PERMIT ISSUED - PARTIAL JOB) | BIS job 122288728 (A2 – Alteration with multiple work types (no change to use/occupancy)): PERMIT ISSUED - PARTIAL JOB — permit issued, no sign-off on record. HEREBY FILING FOR THE COMBINATION OF TWO APARTMENTS, AND THE INSTALLATION OF SPIRAL STAIR CASE. ALL AS PER PLANS FILED HEREWITH. NO CHANGE TO USE OCCUPANCY OR EGRESS. | ic3t-wcy2 |
| 2000-04-03 | open (PERMIT ISSUED - ENTIRE JOB/WORK) | BIS job 102852922 (A3 – Minor alteration (one type of work)): PERMIT ISSUED - ENTIRE JOB/WORK — permit issued, no sign-off on record. INSTALLATION OF A HEAVY DUTY SIDEWALK SHED 40' DURING FACADE REPAIR. SHED TO COMPLY WITH LL33/91. NO CHANGE IN USE, EGRESS OR OCCUPANCY. | ic3t-wcy2 |
| 1991-07-30 | open (PERMIT ISSUED - ENTIRE JOB/WORK) | BIS job 100285022 (A2 – Alteration with multiple work types (no change to use/occupancy)): PERMIT ISSUED - ENTIRE JOB/WORK — permit issued, no sign-off on record. REPLACE BOILER AND REINSTALL OIL BURNER NO CHANGE IN EGRESS OCCUPANCY OR USE UNDER THIS APPL. | ic3t-wcy2 |
| 2018-10-12 | n/a (Signed-off) | DOB NOW work permit for job M00078846-I1: Sign — ERECT AN ILLUMINATED SIGN ON WALL.NOT WITHIN VIEW OF ARTERIAL HIGHWAY OR PUBLIC PARK 1/2 ACRE OR MORE. NO CHANGE IN USE, EGRESS OR OCCUPANCY.. Issued 2018-10-12, expires 2018-11-01. | rbx6-tga4 |
| 2018-09-26 | n/a (ISSUED (initial)) | BIS work permit for job 122812420: Plumbing / Plumbing. Issued 2018-09-26, expires 2019-09-26. | ipu4-2q9a |
| 2018-09-21 | n/a (ISSUED (renewal)) | BIS work permit for job 122812420: Equipment work / Other / general construction. Issued 2018-09-21, expires 2019-09-06. | ipu4-2q9a |
| 2018-08-30 | n/a (ISSUED (initial)) | BIS work permit for job 122812420: Equipment work / Other / general construction. Issued 2018-08-30, expires 2018-09-06. | ipu4-2q9a |
| 2018-03-27 | n/a (ISSUED (renewal)) | BIS work permit for job 140535348: Construction equipment (scaffold, fence, shed) / Construction equipment. Issued 2018-03-27, expires 2019-03-27. | ipu4-2q9a |
| 2016-11-14 | n/a (ISSUED (renewal)) | BIS work permit for job 122471574: Alteration. Issued 2016-11-14, expires 2017-11-12. | ipu4-2q9a |
| 2016-09-12 | n/a (ISSUED (initial)) | BIS work permit for job 122877119: Plumbing / Plumbing. Issued 2016-09-12, expires 2017-09-12. | ipu4-2q9a |
| 2016-09-02 | n/a (ISSUED (initial)) | BIS work permit for job 122877119: Equipment work / Mechanical/HVAC. Issued 2016-09-02, expires 2017-07-03. | ipu4-2q9a |
| 2016-09-02 | n/a (ISSUED (initial)) | BIS work permit for job 122877119: Equipment work / Other / general construction. Issued 2016-09-02, expires 2017-07-03. | ipu4-2q9a |
| 2016-08-20 | n/a (ISSUED (initial)) | BIS work permit for job 140535348: Construction equipment (scaffold, fence, shed) / Construction equipment. Issued 2016-08-20, expires 2017-08-20. | ipu4-2q9a |
| 2016-08-16 | n/a (ISSUED (initial)) | BIS work permit for job 122471574: Alteration. Issued 2016-08-16, expires 2016-11-10. | ipu4-2q9a |
| 2015-07-24 | n/a (ISSUED (initial)) | BIS work permit for job 122288728: Equipment work / Other / general construction. Issued 2015-07-24, expires 2016-03-23. | ipu4-2q9a |
| 2000-09-13 | n/a (ISSUED (renewal)) | BIS work permit for job 100653570: Equipment work / Other / general construction. Issued 2000-09-13, expires 2001-06-30. | ipu4-2q9a |
| 2000-04-12 | n/a (ISSUED (initial)) | BIS work permit for job 102852922: Construction equipment (scaffold, fence, shed) / Construction equipment. Issued 2000-04-12, expires 2001-04-01. | ipu4-2q9a |
| 2000-03-14 | n/a (ISSUED (initial)) | BIS work permit for job 100653570: Plumbing / Plumbing. Issued 2000-03-14, expires 2001-03-14. | ipu4-2q9a |

Showing 20 of 29. Full list: https://nycpropertyfacts.com/api/v1/property/1010360003/permits

## Open violations (DOB, ECB, HPD)

status "open" = DOB violation category is ACTIVE, ECB violation status is ACTIVE, or HPD violation status is Open.

| Date | Status | Description | Source |
|---|---|---|---|
| 2023-07-18 | open (violation status ACTIVE; hearing status IN VIOLATION; certification NO COMPLIANCE RECORDED) | ECB (DOB) violation, class - 2: OBSERVED IN BASEMENT A FUTURE ON GAS LINE WHICH CONTRARY TO FGH 404.15, REPAIR AND/OR REPLACE. Violation status (DOB): active (open; not resolved in DOB records). Hearing/penalty status: found in violation. Certification of correction: no compliance recorded. | 6bgk-3dad |
| 2023-07-18 | open (violation status ACTIVE; hearing status IN VIOLATION; certification NO COMPLIANCE RECORDED) | ECB (DOB) violation, 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. Violation status (DOB): active (open; not resolved in DOB records). Hearing/penalty status: found in violation. Certification of correction: no compliance recorded. | 6bgk-3dad |
| 2023-07-18 | open (violation status ACTIVE; hearing status IN VIOLATION; certification NO COMPLIANCE RECORDED) | ECB (DOB) violation, class - 2: OBSERVED IN BASEMENT INSTALLED TWO GAS DRYERS ALL WORK COMPLETED NO PERMITS, OBTAIN ALL PERMITS. Violation status (DOB): active (open; not resolved in DOB records). Hearing/penalty status: found in violation. Certification of correction: no compliance recorded. | 6bgk-3dad |
| 2012-05-24 | open (Nov Certified Late) | HPD class B violation (Class B) in apt 5FN: § 27-2046.1 HMC: 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. Open — not recorded as corrected. | wvxf-dwi5 |
| 2012-05-24 | open (Nov Certified Late) | HPD class B violation (Class B) in apt 5FN: § 27-2005 ADM CODE 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. Open — not recorded as corrected. | wvxf-dwi5 |

## OATH tickets with unpaid balance or pending

status "open" = balance due > $0 after a decision (cases awaiting a hearing are "pending"). default=true means the respondent did not appear.

No records found.

## Complaints (HPD since 2019, 311 last 12 months)

Complaints are reports, not violations. status mirrors the published complaint / request status.

| Date | Status | Description | Source |
|---|---|---|---|
| 2022-07-12 | closed (CLOSE) | HPD complaint (apt 3B): Heat/Hot Water – Entire Building. The Department of Housing Preservation and Development contacted an occupant of the apartment and verified that the following conditions were corrected. The complaint has been closed. If the conditio… | ygpa-z7cr |
| 2026-08-13 | closed (Closed) | 311 request to DSNY: Missed Collection – Compost. | erm2-nwe9 |
| 2026-08-13 | closed (Closed) | 311 request to DSNY: Missed Collection – Compost. | erm2-nwe9 |
| 2026-07-19 | closed (Closed) | 311 request to NYPD: Illegal Parking – Blocked Bike Lane. | erm2-nwe9 |
| 2026-06-10 | closed (Closed) | 311 request to DPR: Illegal Tree Damage – Bicycle Chained to Tree. | erm2-nwe9 |
| 2026-04-07 | closed (Closed) | 311 request to DSNY: Dirty Condition – Trash. | erm2-nwe9 |
| 2026-03-23 | closed (Closed) | 311 request to DOHMH: Rodent – Condition Attracting Rodents. | erm2-nwe9 |
| 2026-02-13 | closed (Closed) | 311 request to DSNY: Missed Collection – Compost. | erm2-nwe9 |
| 2026-01-24 | closed (Closed) | 311 request to DSNY: Missed Collection – Bulky Trash. | erm2-nwe9 |
| 2026-01-24 | closed (Closed) | 311 request to DSNY: Missed Collection – Bulky Trash. | erm2-nwe9 |

## Owners & contacts

Owner of record comes from city tax records (PLUTO) and can lag behind recent sales.

| Date | Status | Description | Source |
|---|---|---|---|
| 2026-08-24 | current | City tax records (PLUTO) list the owner as AMETHYST W HOUSING CORP. | 64uk-42ks |
| 1991-11-12 | recorded | Grantee (buyer) on the most recent deed (DEED, 1991-11-12). | 636b-3b5g |
| 2026-08-29 | current_registration | HPD registration contact: HeadOfficer Ralph Westerhoff, business city New York. | feu5-w2e2 |
| 2026-08-29 | current_registration | HPD registration contact: CorporateOwner (AMETHYST WEST HDFC), business city New York. | feu5-w2e2 |
| 2026-08-29 | current_registration | HPD registration contact: Agent Ralph Westerhoff (BRICKWORK MANAGEMENT INC.), business city New York. | feu5-w2e2 |
| 2026-08-29 | current_registration | HPD registration contact: SiteManager Tony Willging. | feu5-w2e2 |
| 2026-08-29 | current_registration | HPD registration contact: Officer Christine Debany, business city New York. | feu5-w2e2 |

---

Independent site. Data from NYC Open Data; not affiliated with the City of New York. Not a title search or official record; verify with the issuing agency. JSON: https://nycpropertyfacts.com/api/v1/property/1010360003