# 315 West 20th Street, Manhattan

Public school · built c. 1925 · Block 744, Lot 24.

On Umarelli: https://umarelli.org/nyc/1007440024/315-west-20-street

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

Every lot on block 744: https://umarelli.org/nyc/manhattan/744.md

## Building permits

- Alteration, filed Jul 14, 2025, estimated cost $455K, described as “Installation of supplemental cooling system in the cafeteria.”
- Alteration, filed Jul 10, 2025, estimated cost $330K, described as “Installation of Supplemental Cooling System in Auditorium indoor evaporator and Outdoor Condenser Units.”
- Alteration, filed Feb 3, 2022, estimated cost $182K, described as “Upgrades to the furniture and finishes in the boys and girls changing rooms at the cellar.”

## Property taxes

- Assessment: $7,299,000
- Market value (city estimate): $16,220,000
- Taxable value: $0
- Assessed land: $2,956,500
- Assessed improvements: $4,342,500

## Zoning

R7B: floor area ratio 3.25 built, above the 3.00 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