451 WEST 47 STREET
451 WEST 47 STREET is a Class C3 (walk-up, pre-1929) building in Manhattan (BBL 1010570110) built in 1920, with 4 residential units across 4 floors.
The building is in NYC community district 104, council district 3, zoning district R8, on a 1,883-square-foot lot with a building footprint of 4,640 square feet.
The current registered owner of record per NYC PLUTO is MCMAHON, MICHAEL.
The most recent ACRIS deed transfer for this BBL was recorded on March 3, 2026 when Mcmahon, Michael; Mcmahon, Marlena conveyed the property to M5 Townhouse 47, 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 17, 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
- Site ManagerMICHAEL MCMAHON
Most recent deed
Recent ACRIS documents (last 5)
Building stats
- Zoning:
- R8
- Lot size:
- 1,883 sqft
- Building area:
- 4,640 sqft
- Floors:
- 4
- Assessed value:
- $1.3M
- Community district:
- 104
- Council district:
- 3
HPD violations
Recent HPD violation details
- Class IInspected Dec 3, 2024§27-2107 ADM CODE OWNER FAILED TO FILE A VALID REGISTRATION STATEMENT WITH THE DEPARTMENT AS REQUIRED BY ADM CODE §27-2097 AND IS THEREFORE…
- Class IInspected Nov 27, 2023§27-2107 ADM CODE OWNER FAILED TO FILE A VALID REGISTRATION STATEMENT WITH THE DEPARTMENT AS REQUIRED BY ADM CODE §27-2097 AND IS THEREFORE…
- Class IInspected Nov 16, 2022§27-2107 ADM CODE OWNER FAILED TO FILE A VALID REGISTRATION STATEMENT WITH THE DEPARTMENT AS REQUIRED BY ADM CODE §27-2097 AND IS THEREFORE…
- Class IInspected Nov 7, 2019§27-2107 ADM CODE OWNER FAILED TO FILE A VALID REGISTRATION STATEMENT WITH THE DEPARTMENT AS REQUIRED BY ADM CODE §27-2097 AND IS THEREFORE…
Recent ACRIS activity
Frequently asked questions about 451 WEST 47 STREET
Who owns 451 WEST 47 STREET?
The current registered owner of record for 451 WEST 47 STREET per NYC PLUTO is MCMAHON, MICHAEL. The most recent ACRIS deed transfer for this BBL was recorded on March 3, 2026 when the property was conveyed to M5 Townhouse 47, 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 451 WEST 47 STREET last sold?
The most recent ACRIS deed transfer for 451 WEST 47 STREET was recorded on March 3, 2026, when Mcmahon, Michael; Mcmahon, Marlena conveyed the property to M5 Townhouse 47, Llc for a non-disclosed consideration. The transaction was recorded as cash (no paired mortgage instrument).
How many HPD violations does 451 WEST 47 STREET have?
No open HPD housing-maintenance code violations are on record for 451 WEST 47 STREET as of May 17, 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 451 WEST 47 STREET?
NYC Department of Finance assesses 451 WEST 47 STREET at $1.27M 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 451 WEST 47 STREET and what does that mean?
451 WEST 47 STREET is NYC building class C3 — Walk-up, pre-1929. A walk-up apartment building constructed before 1929, typically 3-6 stories and often rent-stabilized. 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.