520 West 21 Street
Chelsea, Manhattan
Parcel ID (BBL): 1006920041
Owner: Storagemart
Acquired: December 29, 2021, $95.2 million
Built: 1928
Renovated: 1988
SF: 124,385
Dwelling units: 0
No. of buildings: 1
Class: Warehouse, Self Storage (E7)
Floors: 8
Transactions:
• Edison Properties sold 510-520 West 21st Street, Chelsea, Manhattan for $95.2 million to StorageMart on December 29, 2021.
Development:
• Greg Maser filed alteration job M01360335 for 400 sqft B-1 building with 0 apartments in Chelsea, Manhattan, on April 13, 2026.
• Greg Maser filed alteration job M01355361 for 124,385 sqft building with 0 apartments in Chelsea, Manhattan, on March 02, 2026.
• Greg Maser filed alteration job M01284347 for building in Chelsea, Manhattan, on September 10, 2025.
• Greg Maser filed alteration job M01183817 for 1,032 sqft COM building with 0 apartments in Chelsea, Manhattan, on April 13, 2025.
• Greg Maser filed alteration job M00789225 for 1,000 sqft E building with 0 apartments in Chelsea, Manhattan, on August 24, 2022.
Violations:
According to city public data, the properties have received $3,000 in OATH penalties in the last year.