# 430 Park Avenue, Manhattan

Commercial · built 1954 · Block 1291, Lot 38.

On Umarelli: https://umarelli.org/nyc/1012910038/430-park-avenue

More construction in Midtown: https://umarelli.org/nyc/manhattan/midtown.md

## Building permits

- Alteration, filed Oct 5, 2026, estimated cost $300K, described as “Replace existing 45 ton a/c units on the 12 floor., unit serves the interior 12 fl floor of the building with new water cooled a/c units of the same capacity as the 12 fl unit being replaced.”
- Alteration, filed Sep 22, 2026, estimated cost $137K, described as “General construction modifications taking place on the 7th floor as per plans filed herewith. No change in use, egress or occupancy”
- Alteration, filed Aug 4, 2026, estimated cost $48K, described as “Structural modifications taking place on the 1ST floor as per drawings filed herewith. No change in use, egress or occupancy.”
- Alteration, filed Jul 31, 2026, estimated cost $132K, described as “Mechanical modifications taking place in the basement and on the 1ST floor as per drawings filed herewith. No change in use, egress or occupancy.”
- Alteration, filed Jul 30, 2026, estimated cost $10K, described as “Sprinkler modifications taking place on the 1ST floor as per drawings filed herewith. No change in use, egress or occupancy.”
- Alteration, filed Jul 30, 2026, estimated cost $17K, described as “Plumbing modifications taking place on the 1STFLOOR as per drawings filed herewith. No change in use, egress or occupancy.”
- Alteration, filed Jul 13, 2026, estimated cost $1.7M, described as “General construction modifications taking place on the 1ST floor as per drawings filed herewith. No change in use, egress or occupancy.”
- Alteration, filed May 7, 2026, estimated cost $40K, described as “Minor demolition with installation of new partitions, doors, suspended ceilings and finishes on the 17th floor (SK Capital) as per plans. No change to use, egress or occupancy.”
- Alteration, filed Mar 19, 2026, estimated cost $305K, described as “Herewith file mechanical plans to replace existing a/c unit of interior floors of the building with a new water cooled unit of the same capacity, work on 7th floor. (unit is 35 tons)”
- Alteration, filed Feb 9, 2026, estimated cost $2K, described as “Erect non-illuminated accessory business sign reading "hsbc with logo"”
- Alteration, filed Feb 9, 2026, estimated cost $1K, described as “Erect non-illuminated accessory business sign reading "hsbc with logo"”
- Alteration, filed Feb 9, 2026, estimated cost $1K, described as “Erect non-illuminated accessory business sign reading "hsbc with logo"”
- Alteration, filed Jan 28, 2026, estimated cost $11K, described as “Removal and installation of doors, floors and hung ceiling as shown on drawings. No change, to use, egress or occupancy.”
- Alteration, filed Jan 27, 2026, estimated cost $3K, described as “Removal and installation of doors, floors and hung ceiling as shown on drawings. No change to use, egress or occupancy.”
- Alteration, filed Dec 31, 2025, estimated cost $1.3M, described as “Removal and installation of walls, doors, floor finishes and ceilings as shown on drawings. No change to use, egress or occupancy.”
- Alteration, filed Feb 6, 2025, estimated cost $225K, described as “Direct Replacement of existing cooling towers.”
- Alteration, filed Dec 2, 2024, estimated cost $58K, described as “Modification to sprinkler system and related piping as shown on drawings. No change to use, egress or occupancy.”
- Alteration, filed Dec 2, 2024, estimated cost $538K, described as “Removal and installation of ductwork, diffusers, fans, and related mechanical piping as shown on drawings. No change to use, egress or occupancy.”
- Alteration, filed Dec 2, 2024, estimated cost $903K, described as “Interior renovation of partitions, ceilings doors and finshes as shown on drawing. No change to use, egress or occupancy.”
- Alteration, filed Dec 2, 2024, estimated cost $27K, described as “Modification to plumbing fixtures and related piping as shown on drawings. No change to use, egress or occupanyc.”
- Alteration, filed Sep 20, 2024, estimated cost $15K, described as “Removal of spinkler heads and related piping. Installtion of temporary sprinkler loop as shown on drawings. No change to use, egress or occupancy.”
- Alteration, filed Sep 20, 2024, estimated cost $42K, described as “Removal of walls, doors, floor finishes and ceilings as shown on drawings. No change to use, egress or occupancy.”
- Alteration, filed Sep 20, 2024, estimated cost $5K, described as “Modification to existing mechanical system and related duct work as shown on drawings. No change to use, egress or occupancy.”
- Alteration, filed Sep 20, 2024, estimated cost $4K, described as “Removal of plumbing fixtures and related piping as shown on drawings. No change to use, egress or occupanyc.”
- Alteration, filed Dec 2, 2023, 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 2022 the NYC building code. Live load 300PSF.”

26 more, older permits are in this building’s full list on the map: https://umarelli.org/nyc/1012910038/430-park-avenue.

## Property taxes

- Assessment: $61,495,000
- 2026–27 tax: $6,578,725
- Market value (city estimate): $136,655,600
- Taxable value: $60,644,590
- Assessed land: $7,200,000
- Assessed improvements: $54,295,000

## Zoning

C5-3: floor area ratio 16.39 built, above the 15.00 base zoning allows, which bonuses, transfers or older rules can permit.

## Flood zone

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

## Board and land use applications

- Greater East Midtown - Special Subdistrict (City Planning P2016M0316): Completed, decided Aug 15, 2017. This is an application by NYC Department of City Planning requesting a text amendment to establish the East Midtown Subdistrict and extend the Special Midtown District, and to rezone a half-block area from C5-2 to C5-3 to reinforce the…

## In the news

[Renderings Reveal 430 Park Avenue Renovation in Midtown East, Manhattan](https://newyorkyimby.com/2026/08/renderings-reveal-430-park-avenue-renovation-in-midtown-east-manhattan.html), New York YIMBY, Aug 24, 2026.

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