1 Lexington Avenue, Manhattan
Co-op · 28 units · built c. 1910 · Block 877, Lot 22.
Building permits
- Alteration, filed Jun 23, 2026, estimated cost $800K, described as “Interior work in existing duplex apartment 5A/6A. No change in use, egress or occupancy.”
- Alteration, filed Jun 23, 2026, estimated cost $200K, described as “Modifications to existing mechanical system”
- Alteration, filed Jun 23, 2026, estimated cost $25K, described as “Installation of 2HR rated soffit at common hallway”
- Alteration, filed Apr 22, 2026, estimated cost $300K, described as “Interior renovations of apt. 1,2D as per plans filed herewith. No change to use, egress or occupancy”
- Alteration, filed Jan 7, 2026, estimated cost $50K, described as “Herewith file plans to add fire rated chase work for the refrigerant lines. No change to use, egress or occupancy,”
- Alteration, filed Aug 27, 2025, estimated cost $200K, described as “New non structural partitions and millwork, flooring, dropped ceilings and finishes. Pl work to be filed under subsequent document in conjunction with gc. No change to use occupancy or egress”
- Alteration, filed May 28, 2025, estimated cost $105K, described as “No change to existing use, egress or occupancy. No structural work. No gas work. Minor relocation of non-load bearing partitions. Replace floors. New finishes & paint at affected areas, new millwork. Plumbing, mechanical and related…”
- Alteration, filed Dec 13, 2024, estimated cost $181K, described as “Minor interior work in existing duplex apartment 6D/7D. No change in use, egress or occupancy.”
- Alteration, filed Dec 13, 2024, estimated cost $159K, described as “Install central air conditioning unit & compressor on roof including condensate lines to ac units per plans.. No change in use, egress or occupancy.”
- Alteration, filed Jun 9, 2024, estimated cost $54K, described as “Mechanical work for renovations of Apt 5B dwelling with an installation of (2) new air cooled split systems as per plans filed herewith.”
- Alteration, filed Dec 19, 2023, estimated cost $138K, described as “Remove/add new partitions in select areas to modify rms at 7 fl pantry + 8 fl bedrm/bathrm,repair ceiling for changes to existing HVAC systems, exterior work to replace 1 window, add exhaust louver & refrigerant line from new HVAC…”
- Alteration, filed Mar 14, 2023, estimated cost $5K, described as “Installation of temporary material hoist per plan submitted. Work shall comply with 2022 building codes chapter 33. No change in use, egress and/or occupancy with this application.”
- Alteration, filed Mar 10, 2023, described as “Installation of temporary supported scaffold per plan submitted. Work shall comply with 2022 building codes chapter 33. No change in use, egress and/or occupancy with this application.”
- Alteration, filed Feb 14, 2023, estimated cost $40K, described as “Minor interior renovation for existing apartment 9D. Installation of new bathroom fixtures. Removal and replacement of kitchen and bathroom fixtures. No change of use, egress or occupancy under this application.”
- Alteration, filed Feb 14, 2023, estimated cost $53K, described as “Install new VRF split system unit and associated duct for apartment 9D. New exterior window exhaust for bathroom and condenser on roof No change of use, egress, or occupancy under this application.”
- Alteration, filed Feb 14, 2023, estimated cost $327K, described as “Minor interior renovation of apartment 9D. exterior work for new window exhaust. No change of use, egress, or occupancy under this application.”
- Alteration, filed Dec 27, 2022, described as “Installation of temporary supported scaffold per plan submitted. Work shall comply with 2022 building codes chapter 33. No change in use, egress and/or occupancy with this application.”
- Alteration, filed Sep 29, 2022, estimated cost $5K, described as “Mechanical work on the roof and piping/wiring in conduit on facade on existing residential building. In conjunction with structural work. No change in use, occupancy, or egress.”
- Alteration, filed Sep 28, 2022, estimated cost $71K, described as “Structural work on the roof of existing residential building. In conjunction with mechanical work. No change in use, occupancy, or egress.”
- Alteration, filed May 3, 2022, described as “Installation of temporary heavy duty sidewalk shed per plan submitted. Work shall comply with 2014 building codes chapter 33. No change in use, egress and/or occupancy with this application.”
- Alteration, filed Nov 17, 2021, estimated cost $60K, described as “Removal and installation of new plumbing fixtures as per plans. Capping of gas service. No change to use, egress or occupancy.”
- Alteration, filed Nov 17, 2021, estimated cost $150K, described as “New mechanical duct layout, new diffusers, related piping and units as per plans. No change to use, egress or occupancy.”
- Alteration, filed Nov 17, 2021, estimated cost $200K, described as “Renovation to the existing duplex apartment unit to include new finishes, fixtures and equipment at kitchen, powder room and upper level bedrooms. New condenser on roof per mechanical drawings. No change in use, egress or occupancy.”
- Alteration, filed Aug 10, 2021, estimated cost $1.2M, described as “Masonry facade repairs and roof membrane replacement as per drawings. No change in use, egress or occupancy is involved under this application.”
- Alteration, filed May 28, 2020, estimated cost $112K, described as “Plumbing work filed for existing apartment renovation as shown on plans herewith. No change in use, egress, or occupancy.”
1 more, older permit is in this building’s full list on the map.
Property taxes
- Assessment
- $11,110,500
- 2026–27 tax
- $1,034,885
- Market value (city estimate)
- $24,690,000
- Taxable value
- $9,868,270
- Assessed land
- $720,000
- Assessed improvements
- $10,390,500
Tax breaks
- Co-op and condo abatement, with no end date, a $192,629 credit this tax year.
Zoning
R9A: floor area ratio 10.18 built, above the 7.52 base zoning allows, which bonuses, transfers or older rules can permit.
Flood zone
Current FEMA flood map: zone X, minimal flood hazard.
Recent sales
- Nov 13, 2025: $1,995,000
- Nov 7, 2025: $5,900,000
- Jul 29, 2025: $3,150,000
- Jul 17, 2023: $3,025,000
- Jun 2, 2022: $1,585,000
- Jan 19, 2022: $2,665,000
- Mar 18, 2019: $1,395,000
- Jan 10, 2019: $6,100,000
- Oct 23, 2018: $7,600,000
- Mar 9, 2017: $3,325,000
The 10 most recent of 12 open-market sales since 2016, from the Department of Finance’s sales files.