309 East 94th Street, Manhattan
Commercial · built c. 1927 · Block 1557, Lot 8.
Building permits
- Alteration, filed May 9, 2023, estimated cost $15K, described as “Conversion of remnant stack to a debris chute as per plans filed herewith. Debris chute for use during partial demolition, filed separately.”
- Alteration, filed May 5, 2023, estimated cost $100K, described as “Installation of test piles in conjunction with alt co #M00799130. No change to use, egress or occupancy under this application”
- Alteration, filed Apr 4, 2023, estimated cost $1K, described as “Temporary shoring at stair landings as per drawings. Shoring shall comply with ch #33 of the NYC bc. No change in use, occupancy or egress under this application.”
- Alteration, filed Dec 16, 2022, estimated cost $15K, described as “Installation of temporary plywood fence as per plans. No change in use, egress or occupancy.”
- Major Renovation — Non-residential, filed Oct 17, 2022, estimated cost $74.2M, 9 stories, described as “Herewith filing for change of use, egress and occupancy for proposed life sciences building. Horizontal and vertical enlargements of existing building.”
- Alteration, filed Aug 26, 2022, estimated cost $2K, described as “Installation of temporary system scaffold stair tower as per drawings. System scaffold stair tower shall comply with ch #33 of the NYC bc. No change in use, occupancy or egress under this application.”
- Alteration, filed Aug 23, 2022, estimated cost $3K, described as “Installation of temporary pipe 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 Aug 23, 2022, estimated cost $3K, described as “Installation of temporary pipe 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 Aug 23, 2022, estimated cost $3K, described as “Installation of temporary pipe 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 Aug 4, 2022, estimated cost $249K, described as “Temporary shoring to support portions of roof to allow for abatement as per plans.”
- Alteration, filed Jul 7, 2022, estimated cost $5K, described as “Installation of temporary roof protection at adjacent properties during bldg alteration, filed sep. Temporary roof protection shall comply with ch #33 of the NYC bc. No change in use, occupancy or egress under this application.”
- Alteration, filed Jul 5, 2022, estimated cost $1.0M, described as “Herewith filing for structural demolition work as per plans. No change to use egress or occupancy under this application.”
- Alteration, filed Jul 5, 2022, estimated cost $6K, described as “Herewith filing mechanical demo equipment for use during partial demolition of 5 story building (filed separately under M00761510) as per plans.”
- Alteration, filed Jun 28, 2022, estimated cost $350K, described as “Herewith filing for structural removals as per plans. No change to use, egress or occupancy under this application.”
- Alteration, filed Jun 27, 2022, estimated cost $57K, described as “Herewith filing for mechanical removals as per plans. No change to use, egress or occupancy under this application”
- Alteration, filed Jun 27, 2022, estimated cost $20K, described as “Herewith filing for a temporary standpipe and pressurization alarm system as per plans. No change to use, egress or occupancy under this application.”
- Alteration, filed Jun 27, 2022, estimated cost $36K, described as “Herewith filing for plumbing removals as per plans. Fitout work to be filed separately. No change to use, egress or occupancy under this application.”
- Alteration, filed Jun 27, 2022, estimated cost $228K, described as “Herewith filing for mechanical removals as per plans.”
- Alteration, filed Jun 27, 2022, estimated cost $57K, described as “Herewith filing mechanical demo equipment for use during partial demolition of 2 story building (filed separately under M00749252) as per plans”
- Alteration, filed Jun 27, 2022, estimated cost $29K, described as “Herewith filing for the means & methods for structural removals of 2 story building as per plans.”
- Alteration, filed Jun 27, 2022, estimated cost $18K, described as “Herewith filing for plumbing removals as per plans.”
- Alteration, filed Jun 27, 2022, estimated cost $7K, described as “Herewith filing for sprinkler and standpipe removals as per plans.”
- Alteration, filed Jun 27, 2022, estimated cost $11K, described as “Herewith filing for sprinkler/standpipe removals as per plans. No change to use, egress or occupancy under this application.”
- Alteration, filed Jun 27, 2022, estimated cost $885K, described as “Interior removal of walls, doors, floor finishes, and ceilings on all floors; removal of windows and non-structural masonry wall infill; roof waterproof membrane assembly to the existing roof slab; and removal of roof parapet walls down to…”
- Alteration, filed Jun 24, 2022, estimated cost $110K, described as “Herewith filing for the removal of this story portion of this existing building. AI1 approved by john raine uploaded as supporting documentation.”
3 more, older permits are in this building’s full list on the map.
Property taxes
- Assessment
- $8,797,050
- 2026–27 tax
- $860,552
- Market value (city estimate)
- $19,549,000
- Taxable value
- $7,932,820
- Assessed land
- $2,331,000
- Assessed improvements
- $6,466,050
Zoning
C8-4: floor area ratio 5.27 built, above the 5.00 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. FEMA’s preliminary map: zone AE, high risk: a 1% chance of flooding each year, base flood elevation 12 ft (NAVD88).
Recent sales
- Aug 31, 2026: $73,136,835, 145,838 sq ft ($501 per sq ft)
- Dec 2, 2021: $70,000,000, sold with other lots
Open-market sales since 2016, from the Department of Finance’s sales files.
In the news
Construction Begins on Iron Horse Labs at 309 East 94th Street on Manhattan’s Upper East Side, New York YIMBY, Oct 24, 2023.