511 WEST 143 STREET
511 WEST 143 STREET is a Class D1 (elevator, semi-fireproof) building in Manhattan (BBL 1020750020) built in 1920, with 31 residential units across 6 floors.
The building is in NYC community district 109, council district 7, zoning district R7A, on a 7,077-square-foot lot with a building footprint of 29,520 square feet.
The current registered owner of record per NYC PLUTO is AD WEST 143RD LLC.
The most recent ACRIS deed transfer for this BBL was recorded on June 10, 2021 when 511 WEST 143 LLC conveyed the property to AD WEST 143RD LLC; WEST 143 PARTNERS LLC for a non-disclosed consideration. The transaction was recorded as cash (no paired mortgage instrument).
The building is registered with NYC HPD's landlord-registration system and has no open HPD housing-maintenance code violations on record as of May 18, 2026.
Data sourced daily from NYC PLUTO (Department of City Planning), NYC ACRIS (Department of Finance), and NYC HPD housing-maintenance code violations.
Owner of record
HPD registered contacts
- Head OfficerMark Neiman
- Corporate OwnerWest 143 Partners LLC
- Site ManagerRaphael
Most recent deed
Recent ACRIS documents (last 5)
Building stats
- Zoning:
- R7A
- Lot size:
- 7,077 sqft
- Building area:
- 29,520 sqft
- Floors:
- 6
- Assessed value:
- $1.4M
- Community district:
- 109
- Council district:
- 7
HPD violations
Recent HPD violation details
- Class CInspected May 12, 2026HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF MICE IN THE ENTIRE APARTMENT LOCATED AT APT 33, 3rd STORY, 2nd APARTMENT FROM…
- Class BInspected May 12, 2026§ 27-2005 HMC: PROPERLY REPAIR OR REPLACE THE BROKEN OR DEFECTIVE BELL BUZZER AND RETURN INTERCOM SYSTEM AT BUILDING FRONT TO PANEL AT SOUTH…
- Class BInspected May 2, 2026§ 27-2005 ADM CODE REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN A UNIFORM COLOR AT EAST CLOSET AT WEST WALL IN THE FOYER L…
- Class BInspected May 2, 2026§ 27-2005 HMC: PROPERLY REPAIR OR REPLACE THE BROKEN OR DEFECTIVE INTERCOM SYSTEM FROM BUILDING ENTRANCE TO APARTMENT AT SOUTH WALL IN THE P…
- Class AInspected May 2, 2026§ 27-2005 ADM CODE REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN A UNIFORM COLOR AT EAST WALL IN THE 3rd ROOM FROM EAST AT…
Recent ACRIS activity
Frequently asked questions about 511 WEST 143 STREET
Who owns 511 WEST 143 STREET?
The current registered owner of record for 511 WEST 143 STREET per NYC PLUTO is AD WEST 143RD LLC. The most recent ACRIS deed transfer for this BBL was recorded on June 10, 2021 when the property was conveyed to AD WEST 143RD LLC; WEST 143 PARTNERS LLC. PLUTO ownership is refreshed monthly by NYC Department of Finance; the registered owner may not reflect transactions recorded within the last 30 days.
When was 511 WEST 143 STREET last sold?
The most recent ACRIS deed transfer for 511 WEST 143 STREET was recorded on June 10, 2021, when 511 WEST 143 LLC conveyed the property to AD WEST 143RD LLC; WEST 143 PARTNERS LLC for a non-disclosed consideration. The transaction was recorded as cash (no paired mortgage instrument).
How many HPD violations does 511 WEST 143 STREET have?
No open HPD housing-maintenance code violations are on record for 511 WEST 143 STREET as of May 18, 2026. The building is registered with NYC HPD's landlord-registration system. HPD violation data is pulled daily from the NYC Open Data violations feed.
What is the assessed value of 511 WEST 143 STREET?
NYC Department of Finance assesses 511 WEST 143 STREET at $1.38M for the current tax year. NYC assesses property at a fraction of estimated market value (the assessment ratio varies by tax class — 6% for tax class 1 one-to-three-family dwellings, approximately 45% for tax class 2 rental apartment buildings), so the market value implied by this assessment is meaningfully higher. Assessment data is published by NYC Department of Finance.
What building class is 511 WEST 143 STREET and what does that mean?
511 WEST 143 STREET is NYC building class D1 — Elevator, semi-fireproof. A semi-fireproof elevator apartment building. Building class is assigned by NYC Department of Finance and recorded in PLUTO; it determines the property's tax class and the regulatory regime that applies.