54 East 66th Street, Manhattan
Three-family · built c. 1878 · Block 1380, Lot 45.
Building permits
- Alteration, filed Aug 31, 2026, estimated cost $57K, described as “In conjunction with filing job #M01134636-I1, proposed alteration type 2 restoration of existing facade, replace of existing windows to new aluminum windows, restoration of front door and cornice, restoration of existing garage and stoop.”
- Alteration, filed Aug 29, 2026, estimated cost $5K, described as “Installation of 300PSF sidewalk shed and temprory pipe scaffolding as per plans. Sidewalk shed and pipe scaffolding shall comply with chapter #33 of the 2022 code no change in use, egress or occupancy under this application.”
- Alteration, filed Aug 21, 2026, estimated cost $10K, described as “Installation of temporary weather walls”
- Alteration, filed Aug 21, 2026, estimated cost $3K, described as “Installation of temporary plywood construction fence”
- Alteration, filed Jun 2, 2026, estimated cost $1K, described as “Filing to protect neighbor during minor facade repair work. This system is a site specific engineered enclosure system subject to the requirements of bc 3309.17. No change in use, egress, or occupancy”
- Alteration, filed Apr 16, 2026, estimated cost $5K, described as “Installation of temporary plywood construction fence”
- Alteration, filed Mar 31, 2026, estimated cost $5K, described as “Installation of 300PSF sidewalk shed and pipe scaffolding as per plans. Sidewalk shed and pipe scaffolding shall comply with chapter #33 of the 2022 code no change in use, egress or occupancy under this application.”
- Major Renovation — Residential, filed Dec 17, 2024, estimated cost $956K, 1 unit in all, 5 stories, described as “Propose upgrading the existing building as non-combustible construction per the new building code and converting it from a two-family to a one-family house. Obtain a new C of O.”
- Alteration, filed Jul 24, 2024, 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.”
- Alteration, filed Jun 27, 2023, estimated cost $659K, described as “Interior non structural demolition of existing 5 story, non fireproof, two family residence. Enlargement and change in occupancy approved under DOB application: M01134636-I1. No change in use, egress, nor occupancy.”
Property taxes
- Assessment
- $681,000
- 2026–27 tax
- $99,861
- Market value (city estimate)
- $11,350,000
- Taxable value
- $503,256
- Assessed land
- $287,280
- Assessed improvements
- $393,720
Zoning
R8B: floor area ratio 2.46 built, 4.00 allowed by base zoning.
Flood zone
Current FEMA flood map: zone X, minimal flood hazard.
Recent sales
- Apr 18, 2023: $10,300,000
Open-market sales since 2016, from the Department of Finance’s sales files.
Landmarks
Part of Upper East Side Historic District (Historic District). 6 Landmarks Preservation Commission permits are on file.