425 EAST 66 STREET
425 EAST 66 STREET is a Class I9 (hospital / health-related building) building in Manhattan (BBL 1014610013) built in 1987.
The current registered owner of record per NYC PLUTO is MEMORIAL SLOAN-KETTERING.
The most recent ACRIS deed transfer for this BBL was recorded on March 27, 2026 when MEMORIAL CENTER FOR CANCER AND ALLIED DISEASES; MEMORIAL HOSPITAL FOR CANCER AND ALLIED DISEASES conveyed the property to MEMORIAL HOSPITAL FOR CANCER AND ALLIED DISEASES for $1. The transaction was recorded as cash (no paired mortgage instrument).
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
Most recent deed
Recent ACRIS documents (last 2)
Building stats
HPD violations
Recent HPD violation details
Recent ACRIS activity
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Frequently asked questions about 425 EAST 66 STREET
Who owns 425 EAST 66 STREET?
The current registered owner of record for 425 EAST 66 STREET per NYC PLUTO is MEMORIAL SLOAN-KETTERING. The most recent ACRIS deed transfer for this BBL was recorded on March 27, 2026 when the property was conveyed to MEMORIAL HOSPITAL FOR CANCER AND ALLIED DISEASES. 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 425 EAST 66 STREET last sold?
The most recent ACRIS deed transfer for 425 EAST 66 STREET was recorded on March 27, 2026, when MEMORIAL CENTER FOR CANCER AND ALLIED DISEASES; MEMORIAL HOSPITAL FOR CANCER AND ALLIED DISEASES conveyed the property to MEMORIAL HOSPITAL FOR CANCER AND ALLIED DISEASES for $1. The transaction was recorded as cash (no paired mortgage instrument).
How many HPD violations does 425 EAST 66 STREET have?
No open HPD housing-maintenance code violations are on record for 425 EAST 66 STREET. The building is not registered with NYC HPD's landlord-registration system, which is typical for owner-occupied 1-2 family dwellings. HPD violation data is pulled daily from the NYC Open Data violations feed.
What building class is 425 EAST 66 STREET and what does that mean?
425 EAST 66 STREET is NYC building class I9 — Hospital / health-related building. Hospital / health-related 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.