Manhattan · BBL 1006930014
531 West 21st Street
New York, NY 10011 · Manhattan
Also written as: 531 W 21st St · 531 West 21st Street
Owner of record: SM I MMS, L.L.C.
Snapshot updated 2026-09-02 — open the app to refresh for live data.
Assessment (FY2027)
- Assessed value: $8,270,100
- Market value: $18,378,000
- Tax class: 4
Building
- Warehouse (E7)
- Built 1921, altered 2009
- 0 residential / 2 units
- 7 floors
- Zoning: M1-5
- Lot area: 12,261 sf
- Building area: 91,591 sf
- 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/531-west-21-street-1006930014
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