# 43 West 24th Street, Manhattan

Commercial · built c. 1912 · Block 826, Lot 13.

On Umarelli: https://umarelli.org/nyc/1008260013/43-west-24-street

More construction in Flatiron: https://umarelli.org/nyc/manhattan/flatiron.md

Every lot on block 826: https://umarelli.org/nyc/manhattan/826.md

## Building permits

- Alteration, filed Sep 1, 2026, estimated cost $10K, described as “Relocate exist. AC unit on 7th fl, suite 702. No change in use, egress or occupancy”
- No Work, filed Sep 25, 2025
- Alteration, filed Apr 28, 2025, estimated cost $100K, described as “Proposed work is to replace existing split HVAC system with new split system heat pumps for existing retail space on 1ST floor.”
- Alteration, filed Apr 15, 2025, estimated cost $46K, described as “New partitions and finishes on 3rd fl. No change in use egress or occupancy”
- Alteration, filed Mar 10, 2025, estimated cost $60K, described as “New AC units and assoc. ductwork. No change in use, egress or occupancy”
- Alteration, filed Mar 5, 2025, estimated cost $120K, described as “Interior renovation of existing eating and drinking establishment, demolition and erection of non-load bearing partition walls, painting, finishes, and flooring work. No change to use under this application. Filed in conjunction with Alt…”
- Alteration, filed Feb 27, 2024, estimated cost $23K, described as “Renovate existing office space on 8th fl. Non bearing partition removal. New partitions and finishes. No change in use, egress or occupancy”
- No Work, filed Feb 21, 2023
- Alteration, filed Mar 27, 2021, estimated cost $1K, described as “Installation of temporary heavy duty sidewalk shed as per plans. No change in use, egress or occupancy. Sidewalk shed shall comply with chapter #33 of the NYC building code. Live load 300PSF.”
- Alteration, filed Mar 1, 2021, estimated cost $202K, described as “Waterproofing and Masonry Repairs throughout the 4 facades of the building including masonry pointing, brick replacement, stone and terra-cotta repairs, exterior painting. No change in use, occupancy or egress.”
- Alteration, filed Feb 18, 2020, estimated cost $17K, described as “Install new plumbing fixtures and assoc. pipings. modify exist. sprinkler system. No change in use, egress or occupancy”
- Alteration, filed Feb 18, 2020, estimated cost $40K, described as “New branch ductwork from exist. AC unit. No change in use, egrress or occupancy”
- Alteration, filed Sep 25, 2019, estimated cost $9K, described as “Proposed plumbing work in conjunction with proposed renovation of existing commercial space at 10th floor for tenant build-out as indicated on plans herewith.”
- Alteration, filed Sep 25, 2019, estimated cost $10K, described as “Proposed sprinkler system modification work in conjunction with proposed renovation of existing commercial space at 10th floor for tenant build-out as indicated on plans herewith.”
- Alteration, filed Sep 25, 2019, estimated cost $7K, described as “Proposed mechanical system modification work in conjunction with proposed renovation of existing commercial space at 10th floor for tenant build-out as indicated on plans herewith.”
- Alteration, filed Sep 10, 2019, estimated cost $41K, described as “Remove exist. bathroom fixtures and install new bathroom fixtures. Modify exist. sprinkler system. No change in use, egress or occupancy”
- Alteration, filed Sep 10, 2019, estimated cost $3K, described as “Modify existing bathroom vents with new . No change in use, egress or occupancy”
- Alteration, filed Sep 3, 2019, estimated cost $74K, described as “Mechanical work being filed in conjunction with Alteration 2 application to renovate suite 701 on the 7th floor. No change to use, egress or occupancy.”
- Alteration, filed Sep 3, 2019, estimated cost $6K, described as “Plumbing and Sprinkler work being filed in conjunction with Alteration 2 application to renovate suite 701 on the 7th floor. No change to use, egress or occupancy.”
- Alteration, filed Jul 30, 2019, estimated cost $3K, described as “Proposed illuminated channel letter box on storefront for first floor business. No change of use, egress or occupancy.”
- Alteration, filed Jul 5, 2019, estimated cost $3K, described as “Install temporary construction fence in conjunction with A2# 123825441. No change in use, egress & occupancy.”

## Property taxes

- Assessment: $7,663,050
- 2026–27 tax: $758,610
- Market value (city estimate): $17,029,000
- Taxable value: $6,993,090
- Assessed land: $2,533,500
- Assessed improvements: $5,129,550

## Zoning

M1-8A/R11: floor area ratio 10.23 built, 12.00 allowed by base zoning.

## Flood zone

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

## 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.

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