Manhattan · BBL 1007170062
436 West 20th Street
New York, NY 10011 · Manhattan
Also written as: 436 W 20th St · 436 West 20th Street
Owner of record: CHELSEA SQUARE, LLC
Snapshot updated 2026-09-30 — open the app to refresh for live data.
Assessment (FY2027)
- Assessed value: $2,176,200
- Market value: $4,836,000
- Tax class: 2B
Building
- Walk-up apartment (C1)
- Built 1835, altered 2023
- 7 residential / 7 units
- 5 floors
- Zoning: R7B / R8A
- Lot area: 2,574 sf
- Building area: 5,247 sf
- Historic district: Chelsea Historic District
- Flood zone: 1
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/436-west-20-street-1007170062
Estimates are automated, not appraisals. Disclaimer · Terms · Privacy · Contact