# 233 West 24th Street, Manhattan

Public school · built c. 1938 · Block 774, Lot 19.

On Umarelli: https://umarelli.org/nyc/1007740019/233-west-24-street

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

Every lot on block 774: https://umarelli.org/nyc/manhattan/774.md

## Building permits

- Alteration, filed Dec 22, 2025, estimated cost $500K, described as “General Construction work to M600 as per plans filed herewith. No change to use, egress or occupancy.”
- Alteration, filed Sep 3, 2024, estimated cost $210K, described as “The scope of work includes the installation of the supplemental cooling systems for room 922 and 926 on the 9TH floor.”
- Alteration, filed Dec 13, 2022, estimated cost $83K, described as “Interior renovation of existing classrooms 922, 926, & supply rooms 926A & 928.”
- Alteration, filed Jul 20, 2022, estimated cost $5K, described as “Vent pipe installation for gas meter room in accordance with NYC fgc appendix e.”

## Property taxes

- Assessment: $27,888,300
- Market value (city estimate): $61,974,000
- Taxable value: $0
- Assessed land: $5,535,000
- Assessed improvements: $22,353,300

## Zoning

R8A: floor area ratio 10.13 built, above the 6.02 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