# 432 West 58th Street, Manhattan

Health care · built 1971 · Block 1067, Lot 44.

On Umarelli: https://umarelli.org/nyc/1010670044/432-west-58-street

More construction in Hell's Kitchen: https://umarelli.org/nyc/manhattan/hells-kitchen.md

## Building permits

- Alteration, filed Oct 23, 2026, estimated cost $7.0M, described as “Herewith filing for FISP LL11 facade work: demo and rebuild parapets, install new brick veneer, copping, expansion joints, spandrel beams, lintel supports & shelf angles at designated areas as per plans. no change to use, egress, or…”
- Alteration, filed Sep 23, 2026, estimated cost $500K, described as “Mount sinai west ambulatory - 432 west 58TH street - mechanical modifications as per plans filed herewith. No change in use, egress, of occupancy.”
- Alteration, filed Dec 19, 2023, estimated cost $50K, described as “Temporary hoist run-back structure during bldg alt, filed separately. Hoist run-back structure shall comply with chapter #33 of the NYC building code. No change in use, occupancy or egress under this application. Hoist & elevator…”
- Alteration, filed Oct 13, 2022, estimated cost $30K, described as “Installation of temporary work platform as per drawings. Work platform shall comply with ch #33 of the NYC bc. No change in use, occupancy or egress under this application.”
- Alteration, filed Sep 8, 2022, estimated cost $10K, described as “Installation of temporary fence enclosure as per drawings. Fence enclosure shall comply with ch #33 of the NYC bc. No change in use, occupancy or egress under this application.”
- Alteration, filed Sep 8, 2022, estimated cost $30K, described as “Installation of temporary scaffold stair tower as per drawings. Scaffold stair tower shall comply with ch #33 of the NYC bc. No change in use, occupancy or egress under this application.”
- Alteration, filed Sep 8, 2022, estimated cost $50K, described as “Installation of temporary roof protection at adjacent property (426 west 58 street) during bldg alteration, filed sep. Roof protection shall comply with ch #33 of the NYC bc. No change in use, occupancy or egress under this application.”
- Alteration, filed Sep 8, 2022, estimated cost $10K, described as “Installation of temporary overhead protection at adjacent property (426 west 58 street) during bldg alteration, filed sep. Overhead protection shall comply with ch #33 of the NYC bc. No change in use, occupancy or egress under this…”
- Alteration, filed Jul 5, 2022, estimated cost $50K, described as “Mount sinai west ambulatory - 432 west 58TH street - foundation scope as per plans filed herewith to allow for new sewage ejector pit and sump pit. Inclusive of new slab on grade in project area. No change in use, egress, of occupancy.”
- Alteration, filed Jun 9, 2022, estimated cost $175K, described as “Mount sinai west ambulatory - 432 west 58TH street - earthwork associated with support of excavation for installation of new elevator pit. No change in use, egress, or occupancy.”
- Alteration, filed Jun 9, 2022, estimated cost $305K, described as “Mount sinai west ambulatory - 432 west 58TH street - support of excavation scope to allow for installation of new elevator pit. No change of use, egress, or occupancy.”
- Alteration, filed Jun 8, 2022, estimated cost $13.0M, described as “Mount sinai west ambulatory - 432 west 58TH street - structural modifications as per plans filed herewith. No change in use, egress, or occupancy.”
- Alteration, filed Jun 2, 2022, estimated cost $1.0M, described as “Mount sinai west ambulatory building - 432 west 58TH street - new combined sprinkler and standpipe sytem as per plans filed herewith. Plans include a pre-action sprinkler system as well. No change in use egress or occupancy.”
- Alteration, filed Aug 10, 2021, estimated cost $1K, described as “Installation of temporary betamax hoist as per plans. No change in use, egress or occupancy.”
- Alteration, filed Aug 31, 2018, estimated cost $30K, described as “Installation of scaffold as per drawings. Scaffold shall comply with chapter #33 of the NYC building code. No change in use, occupancy or egress under this application.”
- Alteration, filed Jun 22, 2018, estimated cost $150K, described as “Installation of system scaffold stair tower as per drawings. System scaffold stair tower shall comply with chapter #33 of the NYC building code. No change in use, occupancy or egress under this application.”
- Alteration, filed Jun 15, 2018, estimated cost $220K, described as “Installation of heavy duty sidewalk shed during building alteration, filed separately. Sidewalk shed shall comply with chapter #33 of the NYC building code. No change in use, occupancy or egress under this application.”
- Alteration, filed Jun 15, 2018, estimated cost $95K, described as “Installation of plywood fence, as per drawings. Plywood fence shall comply with chapter #33 of the NYC building code. No change in use, occupancy or egress under this application.”

## Property taxes

- Assessment: $15,724,350
- Market value (city estimate): $34,943,000
- Taxable value: $0
- Assessed land: $2,056,500
- Assessed improvements: $13,667,850

## Tax breaks

- Nonprofit exemption (nonprofit, use planned), with no end date, about $1,705,777 a year below the full tax.

## Zoning

R8: floor area ratio 17.13 built, above the 6.02 base zoning allows, which bonuses, transfers or older rules can permit.

## Recent sales

- Apr 20, 2018: $71,521,132

Open-market sales since 2016, from the Department of Finance’s sales files.

## Flood zone

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

## In the news

[Renovation Continues for Mount Sinai Surgical Innovation Center at 432 West 58th Street in Hell’s Kitchen, Manhattan](https://newyorkyimby.com/2023/02/renovation-progresses-for-mount-sinai-surgical-innovation-center-at-432-west-58th-street-in-hells-kitchen-manhattan.html), New York YIMBY, Feb 28, 2023.

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