18 West 24th Street, Manhattan
Commercial · built c. 1904 · Block 825, Lot 56.
Building permits
- Alteration, filed Sep 16, 2022, estimated cost $104K, described as “Removal and replacement of existing roofing system without disturbing the existing concrete structural slab. Ancillary masonry repairs along surrounding parapets. No changes in use, egress or occupancy”
- Alteration, filed Mar 9, 2021, estimated cost $100K, described as “Installation of mh equipment and associated ductwork in 1ST fl mh room. No change in use, egress or occupancy.”
- Alteration, filed Sep 24, 2020, estimated cost $70K, described as “Installation of new plumbing and sprinkler fixtures and associated branch piping on 1ST floor to serve new bathrooms. No change in use, egress or occupancy.”
- Alteration, filed Sep 24, 2020, estimated cost $30K, described as “New exhaust ductwork in new toilet areas on 1ST fl. No change in use, egress or occupancy.”
- Alteration, filed Feb 5, 2020, estimated cost $150K, described as “Proposed mechanical equipment room on 2ND and 3RD fl. Work includes, but not limited to, installation of (2)15-ton ac units including associated duct work and piping. No change to use, egress or occupancy.”
Property taxes
- Assessment
- $3,223,800
- 2026–27 tax
- $277,099
- Market value (city estimate)
- $7,164,000
- Taxable value
- $2,554,380
- Assessed land
- $585,000
- Assessed improvements
- $2,638,800
Zoning
M1-8A/R11: floor area ratio 5.03 built, 12.00 allowed by base zoning.
Flood zone
Current FEMA flood map: zone X, minimal flood hazard.
Recent sales
- Apr 25, 2019: $3,650,000
Open-market sales since 2016, from the Department of Finance’s sales files.
Landmarks
Part of Ladies' Mile Historic District (Historic District). 18 Landmarks Preservation Commission permits are on file.
Board and land use applications
- Midtown South Mixed-Use Plan (MSMX) (City Planning 2024M0142): Zoning map change, Zoning text change, Completed, filed Jan 16, 2025, decided Aug 14, 2025. The Department of City Planning is seeking a Zoning Map amendment from M1-6 and M1-6D to M1-9A/R12, M1-8A/R12, and M1-8A/R11 and a Zoning Text amendment to facilitate the development of housing and support critical economic activity across…
- Flatiron BID Expansion (City Planning 2021M0260): Business improvement district, Completed, filed Nov 30, 2020, decided May 19, 2021. An application from the Small Business Services (SBS) on behalf of the Flatiron Business Improvement District (BID) to modify the existing plan and expand the BID in Community Districts 4 and 5 of Manhattan.