Manhattan · BBL 1011230022
21 West 70th Street
New York, NY 10023 · Manhattan
Also written as: 21 W 70th St · 21 West 70th Street
Owner of record: 21 SUMMIT HOLDING LLC
Snapshot updated 2026-09-02 — open the app to refresh for live data.
Assessment (FY2027)
- Assessed value: $526,620
- Market value: $8,777,000
- Tax class: 1
Last recorded sale
$8,180,000 on 2025-07-17 (class A4)
Building
- One-family dwelling (A4)
- Built 1894
- 1 residential / 1 units
- 4 floors
- Zoning: R8B
- Lot area: 2,109 sf
- Building area: 6,450 sf
- Historic district: Upper West Side / Central Park West Historic District
Official records
ZoLa zoning · DOF property tax · Property Portal · ACRIS deeds/mortgages · DOB profile · Tax map · Map
All data sourced from NYC Department of Finance / PLUTO / ACRIS / HPD public records. https://www.sageops.ai/property/manhattan/21-west-70-street-1011230022
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