# 800 5th Avenue, Manhattan

Apartment building · 208 units · built 1979 · Block 1376, Lot 1.

On Umarelli: https://umarelli.org/nyc/1013760001/800-5-avenue

More construction in Upper East Side: https://umarelli.org/nyc/manhattan/upper-east-side.md

## Building permits

- Demolition, filed Sep 24, 2026, estimated cost $250K, described as “Full demolition by hand with mechanical assist from within the building”
- Major Renovation — Tower, filed Sep 24, 2026, 208 units in all, 30 stories, described as “Alt 1 with new building requirements”
- Demolition, filed Jun 15, 2026, estimated cost $1.0M, described as “Full demolition of 33 story building with portions of the structure to remain from sub-cellar through 5th fl including floor slab, beams and columns.”
- Alteration, filed Mar 30, 2026, estimated cost $887K, described as “Removal of non-load bearing interior partitions and mechanical equipment. There is no change to use, egress, occupancy, or fire protection.”
- Alteration, filed Oct 31, 2024, estimated cost $190K, described as “Replacement of 2 cooling towers on roof. No change to egress, use, or occupancy.”
- Alteration, filed Jul 16, 2024, estimated cost $220K, described as “Garage repairs as per plans. No change in use, egress, or occupancy.”
- Alteration, filed Apr 26, 2023, estimated cost $324K, described as “New interior partitions, light fixtures, appliances, plumbing fixtures and life safety equipment. Work inside suite 205 only.”
- Alteration, filed Jan 11, 2022, estimated cost $4K, described as “Supported pipe scaffold as shown on the plans. No change in use, egress, or occupancy under this application.”
- Alteration, filed Jan 7, 2022, estimated cost $45K, described as “Hereby filing for the relocation and removal of fixtures. No change to use occupancy or egress.”
- Alteration, filed Jan 7, 2022, estimated cost $65K, described as “Hereby filing for the installation of mechanical equipment. No change to use occupancy or egress”
- Alteration, filed Jan 6, 2022, estimated cost $95K, described as “Hereby filing tenant fit out. Installation of non load bearing partitions, mill-work and finishes. No change to use occupancy or egress.”
- Alteration, filed Dec 21, 2021, estimated cost $3K, described as “Installation of 300psf sidewalk shed as per plans, sidewalk shed shall comply with chapter # 33 of the code 2014, no changes in use, egress and occupancy under this application.”
- Alteration, filed Feb 5, 2021, estimated cost $22K, described as “Installation of sprinkler heads as per plans filed herewith.”
- Alteration, filed Feb 4, 2021, estimated cost $10K, described as “Installation of mechanical units as per plans filed herewith. no change to use, egress or occupancy.”
- Alteration, filed Feb 4, 2021, estimated cost $136K, described as “800B Suite 2: Interior renovations of dental office as per plans filed herewith. No change to use, egress or occupancy.”
- Alteration, filed Feb 4, 2021, estimated cost $27K, described as “Installation of plumbing fixtures as per plans filed herewith.”
- Alteration, filed Sep 21, 2020, estimated cost $35K, described as “Installation of plumbing fixtures as per plans filed herewith.”
- Alteration, filed Sep 21, 2020, estimated cost $15K, described as “Installation of sprinkler heads as per plans filed herewith.”
- Alteration, filed Aug 19, 2020, estimated cost $26K, described as “Hereby filing for the installation of 35 sprinkler heads. No change to use egress or occupancy.”
- Alteration, filed Aug 19, 2020, estimated cost $30K, described as “Hereby filing for the installation of mechanical equipment. No change to use egress or occupancy.”
- Alteration, filed Dec 6, 2019, estimated cost $30K, described as “Installation of plumbing fixtures on the 3rd floor of existing commercial space 301. No change in use, occupancy or egress.”
- Alteration, filed Dec 5, 2019, estimated cost $50K, described as “Installation of water source AC unit, diffusers and grilles with associated ductwork. Mechanical work. No change in use, occupancy or egress.”

## Property taxes

- Assessment: $93,384,450
- 2026–27 tax: $10,809,894
- Market value (city estimate): $207,521,000
- Taxable value: $86,903,240
- Assessed land: $32,265,000
- Assessed improvements: $61,119,450

## Zoning

R10: floor area ratio 12.61 built, above the 10.00 base zoning allows, which bonuses, transfers or older rules can permit.

## Recent sales

- Aug 14, 2025: $810,000,000

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

## Flood zone

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

## Landmarks

Part of Upper East Side Historic District (Historic District). 50 Landmarks Preservation Commission permits are on file.

## Board and land use applications

- 800 Fifth Avenue Non-ULURP Mod (City Planning 2026M0136): Special permit, Filed, filed Jun 8, 2026. A non-ULURP mod to a previously approved special permit (CP23226b) to facilitate changes to a mixed-use development, is being sought by a private applicant at 800 Fifth Avenue in Lenox Hill, Community District 8, Manhattan.

## In the news

[Renderings Reveal RAMSA Redevelopment of 800 Fifth Avenue on Manhattan’s Upper East Side](https://newyorkyimby.com/2025/11/renderings-reveal-ramsa-redevelopment-of-800-fifth-avenue-on-manhattans-upper-east-side.html), New York YIMBY, Nov 15, 2025.

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