# 787 11th Ave, Manhattan

Office condominium · built c. 1929 · Block 1102, Lot 7501.

On Umarelli: https://umarelli.org/nyc/1011027501/787-11-ave

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

## Building permits

- Alteration, filed Sep 11, 2026, estimated cost $25K, described as “Filing for installation of 30'-0" linear feet curb cut as indicated onhe plans filed herewith. No change in use, egress or occupancy.”
- Alteration, filed Jun 4, 2025, estimated cost $78K, described as “Concrete repairs to garage, cellar through 5th floor as per plans herewith filed.”
- Alteration, filed Feb 12, 2024, estimated cost $8K, described as “Proposed installation of pipe scaffold for remedial repairs as per plans. No change in use occupancy or egress under this application.”
- Alteration, filed Dec 8, 2023, estimated cost $190K, described as “Facade restoration to include but not limited to terracotta repairs, Retrofit pinning, expansion joint replacement as per plans filed herewith. No change in use egress or occupancy.”
- Alteration, filed Sep 19, 2023, estimated cost $1K, described as “Installation of sidewalk shed in accordance with nycc 2022 chapter 33 building code. No change in egress, use, or occupancy.”
- Alteration, filed May 5, 2023, estimated cost $50K, described as “Installation of water and sanitary piping connections for a capsule in a laboratory space . No change in use, egress or occupancy”
- Alteration, filed Feb 1, 2023, estimated cost $86K, described as “Installation of temporary system scaffold as per drawings. Scaffold shall comply with ch #33 of the NYC bc. No change in use, occupancy or egress under this application.”
- Alteration, filed Nov 7, 2022, estimated cost $2.2M, described as “787 11TH avenue - merritt healthcare asc article 28 - mechanical modifications as per plans filed herewith. No change in use, egress, or occupancy.”
- Alteration, filed Nov 7, 2022, estimated cost $135K, described as “787 11TH avenue - merritt healthcare asc article 28 - modifications to existing sprinkler system and standpipe system as per plans filed herewith. No change in use, egress, or occupancy.”
- Alteration, filed Nov 7, 2022, estimated cost $750K, described as “787 11TH avenue - merrit healthcare asc article 28 - modifications to an existing plumbing system as per plans filed herewith. No change in use, egress, or occupancy.”
- Alteration, filed Nov 5, 2022, estimated cost $2.6M, described as “Interior Fit-Out of existing Shell Space for a New Ambulatory Surgery Center comprised of two ORs and two procedure rooms, 18 Pre- and Post-Op cubicles, Decontamination, Sterile Storage, Reception/Waiting and various support spaces.”
- Alteration, filed Nov 4, 2022, estimated cost $295K, described as “787 11TH avenue - merritt healthcare asc article 28 - structural modifications as per plans filed herewith. No change in use, egress, or occupancy.”
- Alteration, filed Oct 7, 2022, described as “Installation of temporary pipe scaffold as per plans. No change in use, egress or occupancy.”
- Alteration, filed Aug 24, 2022, estimated cost $3K, described as “Erect non-illuminated accessory wall sign. Non-flashing, non-advertising sign, no change in use, egress or occupancy”
- Alteration, filed Aug 4, 2022, estimated cost $13K, described as “Modification of ductwork, relocating existing fan, and installing new stair vent louver and fire smoke damper for relocation of system. No change in use occupancy or egress.”
- Alteration, filed Nov 5, 2021, estimated cost $5.1M, described as “Mount sinai -infrastructure upgrades - plumbing modifications according to plans filed herewith. No change to use, egress or occupancy.”
- Alteration, filed Nov 2, 2021, estimated cost $17.3M, described as “Mount sinai health system - 1st, 6th, and 8th fit out - mechanical modifications according to plans filed herewith. No change to use, egress or occupancy.”
- Alteration, filed Nov 2, 2021, estimated cost $245K, described as “Mount sinai - infrastructure upgrades - modifications associated with the existing fuel storage tank according to plans filed herewith. No change to use, egress or occupancy.”
- Alteration, filed Nov 2, 2021, estimated cost $178K, described as “Mount sinai - infrastructure upgrades - installation of 2 new electric steam boiler according to plans filed herewith. No change to use, egress, or occupancy.”
- Alteration, filed Nov 2, 2021, estimated cost $178K, described as “Mount sinai - infrastructure upgrades - installation of 4 new electric hot water boilers as per plans filed herewith. No change in use, egress, or occupancy.”
- Alteration, filed Nov 2, 2021, estimated cost $10K, described as “Mount sinai - infrastructure upgrades - installation of 2 new gas hot water boilers as per plans filed herewith. No change in use, egress, or occupancy.”
- Alteration, filed Nov 2, 2021, estimated cost $793K, described as “Mount sinai - infrastructure upgrades - sprinkler and standpipe modifications according to plans filed herewith. No change to use, egress or occupancy.”
- Alteration, filed Oct 20, 2021, estimated cost $1.5M, described as “Mount sinai health systems - infrastructure fit out - structural modifications according to plans filed herewith. No change to use, egress or occupancy.”
- Alteration, filed Sep 27, 2021, estimated cost $18.1M, described as “Mount sinai - infrastructure - interior fit out to the existing 6TH and 8TH floors along with minor alterations to floors 1-10, cellar, and roof as per plans. No change to use, egress, or occupancy. Use approved under alt-1 12119039”
- Alteration, filed Sep 17, 2021, estimated cost $20K, described as “The existing Work Shop Room is to be converted to a temporary women's rest room and the existing Dry Consumable Storage room is to be converted to a temporary men's rest room to be used by construction workers during a building renovation…”

32 more, older permits are in this building’s full list on the map: https://umarelli.org/nyc/1011027501/787-11-ave.

## Property taxes

- Assessment: $91,911,061
- 2026–27 tax: $4,936,811
- Market value (city estimate): $204,246,801
- Taxable value: $63,580,174
- Assessed land: $5,083,650
- Assessed improvements: $86,827,411
- Condo units with their own tax lots: 7

## Tax breaks

- Nonprofit exemption (hospital), with no end date, about $2,616,084 a year below the full tax.

## Zoning

M2-4: floor area ratio 8.18 built, above the 5.00 base zoning allows, which bonuses, transfers or older rules can permit.

## Flood zone

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

## In the news

[787 Eleventh Avenue’s Renovation and Expansion Nears Completion in Hell’s Kitchen, Manhattan](https://newyorkyimby.com/2022/09/787-eleventh-avenues-renovation-and-expansion-nears-completion-in-hells-kitchen-manhattan.html), New York YIMBY, Sep 22, 2022.

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