# 527 West 23rd Street, Manhattan

Apartment building · 313 units · built 2001 · Block 695, Lot 15.

On Umarelli: https://umarelli.org/nyc/1006950015/527-west-23-street

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

## Building permits

- Alteration, filed Jul 30, 2026, estimated cost $2K, described as “Proposed installation of 1 illuminated non-flashing accessory business sign and 1 non-illuminated double faced accessory business sign. First sign wording "vets go" "veterinary internal medicine diagnostics", second sign wording "vets go".”
- Alteration, filed May 22, 2026, estimated cost $230K, described as “Interior renovation of existing 1st floor art gallery tenant space. Work includes non-structural demo, new partitions/doors, lighting and finishes. No exterior work proposed under this application. No Change to use, egress, or occupancy.”
- Alteration, filed Apr 5, 2026, estimated cost $34K, described as “Minor interior renovations including new partitions. All existing lighting and switching to remain. Replace two sinks on existing roughing under a separate laa application. Mechanical equipment replacement in kind under a subsequent…”
- Alteration, filed Mar 18, 2026, estimated cost $298K, described as “Ren. of existing retail space - install nonbearing partitions, ceilings, doors, furnishings, equipment for new veterinary clinic & lighting. no change in use egress or occupancy. subsequent applications to be filed for plumbing,…”
- Alteration, filed Oct 31, 2025, described as “Material hoist”
- Alteration, filed Aug 25, 2025, estimated cost $100K, described as “Minor interior renovation for new retail tenant as per plans filed herewith. No change in use, egress, or occupancy.”
- Alteration, filed May 27, 2025, described as “IRA application for FISP inspections and repairs”
- Alteration, filed Dec 10, 2024, estimated cost $50K, described as “Interior renovation to an existing retail space as per plans filed herewith. No change in use, egress, or occupancy.”
- Alteration, filed Dec 10, 2024, estimated cost $20K, described as “Interior renovation to an existing retail space as per plans filed herewith. No change in use, egress, or occupancy.”
- Alteration, filed Jul 13, 2024, described as “Facade inspection”
- Alteration, filed Aug 7, 2021, estimated cost $20K, described as “Plumbing work for the related job number: M005575511-I1 interior renovation for a new coffee shop layout in existing retail store.”
- Alteration, filed Aug 7, 2021, estimated cost $55K, described as “Interior renovation for a new coffee shop layout in existing retail store.”
- Alteration, filed Mar 27, 2019, estimated cost $1K, described as “Installation of pipe scaffolding. No change in use, egress or occupancy.”
- Alteration, filed Mar 13, 2019, 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.”

## Property taxes

- Assessment: $45,723,600
- 2026–27 tax: $2,751,014
- Market value (city estimate): $101,608,000
- Taxable value: $22,113,395
- Assessed land: $3,332,700
- Assessed improvements: $42,390,900

## Tax breaks

- 421-a exemption, through Jun 30, 2039, about $2,554,124 a year below the full tax.

## Zoning

C6-3A (part of the lot is C6-2A): floor area ratio 8.10 built, above the 7.52 base zoning allows, which bonuses, transfers or older rules can permit.

## Flood zone

Current FEMA flood map: zone X, moderate risk: a 0.2% chance of flooding each year.

## In the news

[Housing Lottery Launches for The Tate at 535 West 23rd Street in Chelsea, Manhattan](https://newyorkyimby.com/2023/05/housing-lottery-launches-for-the-tate-at-535-west-23rd-street-in-chelsea-manhattan.html), New York YIMBY, May 11, 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