# 136 West 21st Street, Manhattan

School · built c. 1910 · Block 796, Lot 60.

On Umarelli: https://umarelli.org/nyc/1007960060/136-west-21-street

More construction in Chelsea: https://umarelli.org/nyc/manhattan/chelsea.md

Every lot on block 796: https://umarelli.org/nyc/manhattan/796.md

## Building permits

- Alteration, filed Aug 6, 2026, estimated cost $84K, described as “Proposed facade repair as per plan. No change of occupancy, use, or egress.”
- Alteration, filed Jul 24, 2026, described as “File suspended scaffold outrigger systems for facade restoration and inspection.”
- Alteration, filed Jun 24, 2026, estimated cost $45K, described as “Change grade of fuel from #4 to truburn renewable fuel oil.”
- Alteration, filed Dec 10, 2025, described as “Ira to assist with condition assessment.”
- Alteration, filed Sep 6, 2024, estimated cost $59K, described as “Replacement of HVAC units and associated duct work as per plans filed herewith.”
- Alteration, filed Dec 27, 2023, described as “FACADE RESTORATION & INSPECTION. Designated Primary Site Supervisor: Cesar Quito”
- Alteration, filed Dec 15, 2023, described as “FACADE RESTORATION & INSPECTION. Designated Primary Site Supervisor: Jaroslaw Jablonski”
- Alteration, filed Aug 16, 2023, estimated cost $23K, described as “Existing exterior windows on West facade on floors 5th thru 12th to be infill from inside, all as per plan. No change of use, occupancy or egress.”
- Alteration, filed Jun 23, 2023, estimated cost $300K, described as “Proposed facade repair all as per plan, no change to use, egress or occupancy.”
- Alteration, filed Jun 13, 2023, estimated cost $5K, described as “Installation of pipe scaffolding as per plans. All equipment shall comply with chapter #33 of the NYC building code 2022. No change in use, occupancy, or egress under this application.”
- Alteration, filed Jun 13, 2023, estimated cost $5K, described as “Installation of 300PSF sidewalk shed as per plans. All equipment shall comply with chapter #33 of the NYC building code 2022. No change in use, occupancy, or egress under this application.”
- Alteration, filed Aug 25, 2022, estimated cost $140K, described as “Propose to infill existing doors to fire escape, all as per plan. Removal of fire escape is under separate application. No change of use or occupancy.”
- Alteration, filed Aug 22, 2022, estimated cost $14K, described as “Mechanical modifications to include HVAC replacement for 1ST floor commercial space as per plans filed herewith. No change in use, egress or occupancy.”
- Alteration, filed Aug 17, 2022, estimated cost $125K, described as “Proposed to remove the fire escape stair from the building at the rear wall. All as per plan. No change to use or occupancy.”
- Alteration, filed May 26, 2021, estimated cost $11K, described as “Sprinkler modifications for 12TH floor commercial space as per plans filed herewith. No change in use, egress or occupancy.”
- Alteration, filed May 12, 2021, estimated cost $30K, described as “HVAC duct and louver modifications for 9TH-11TH floor commercial spaces as per plans filed herewith. No change in use, egress or occupancy.”
- Alteration, filed May 5, 2021, estimated cost $25K, described as “Filing herewith mechanical application for the purpose of obtaining equipment use permits for HVAC unit installed and signed off under application #122101625. No change in use, egress or occupancy.”
- Alteration, filed Aug 17, 2020, estimated cost $5K, described as “Sprinkler modifications for cellar storage area of existing commercial building as per plans filed herewith. No change in use, egress or occupancy.”
- Alteration, filed Aug 17, 2020, estimated cost $17K, described as “HVAC modifications for cellar storage area of existing commercial building as per plans filed herewith. No change in use, egress or occupancy.”
- Alteration, filed Jan 2, 2020, estimated cost $24K, described as “Sprinkler modifications to comply with local law 26/2004 for existing commercial building as per plans filed herewith. No change in use, egress or occupancy.”
- Alteration, filed Oct 21, 2019, estimated cost $150K, described as “Filing herewith mechanica application for the purpose of obtaining equipment use permits for a chiller installed and signed off under appplication #120636954. No change in use, egress or occupancy.”
- Alteration, filed Aug 6, 2019, estimated cost $57K, described as “Installation of HVAC system for 12TH floor commercial space as per plans filed herewith. No change in use, egress or occupancy.”
- Alteration, filed Aug 1, 2019, estimated cost $11K, described as “Sprinkler modifications for cellar as per plans filed herewith. No change in use, egress or occupancy.”
- Alteration, filed Dec 20, 2017, described as “Installation of heavy duty sidewalk shed as per plans. No change in use, egress or occupancy.”

## Property taxes

- Assessment: $5,502,150
- 2026–27 tax: $569,214
- Market value (city estimate): $12,227,000
- Taxable value: $5,247,180
- Assessed land: $931,500
- Assessed improvements: $4,570,650

## Zoning

C6-3A: floor area ratio 12.20 built, above the 7.52 base zoning allows, which bonuses, transfers or older rules can permit.

## Flood zone

Current FEMA flood map: zone X, minimal flood hazard.

From New York City and Jersey City public records, refreshed within a day of each release. Sources: https://umarelli.org/sources. Methodology and corrections: https://umarelli.org/methodology