52 Riverside Drive, Manhattan

Co-op · 49 units · built c. 1926 · Block 1186, Lot 51.

Building permits

Alteration, filed Jun 17, 2026, estimated cost $165K, described as “Prop. interior alteration within Co-Op Unit 6A as per plans, including installation of two through-wall air-conditioning sleeves below existing windows. No change to use, occupancy, egress, or building systems.”
Alteration, filed Mar 6, 2026, estimated cost $374K, described as “Renovation of existing apartment 15BC on 014TH floor. Work includes replacement of ac units, minor non-structural partition work, new finishes, and replacement of existing windows in present masonry openings. No change in use, egress, or…”
Alteration, filed Jun 20, 2025, described as “Rigging for Industrial Rope Access”
Alteration, filed Feb 7, 2025, estimated cost $44K, described as “Interior renovation of apartment 2A on the second floor. No change in use, egress, or occupancy.”
Alteration, filed Aug 7, 2020, estimated cost $8K, described as “Bathroom Renovation Project in an existing class 'A' apartment. As per plans filed herewith no change to use, occupancy or egress.”
Alteration, filed Jan 16, 2020, estimated cost $5K, described as “Proposed installation of heavy duty sidewalk shed as per plans. Live load 300 lbs per square feet. Sidewalk shed shall comply with chapter #33 of the NYC building code. No change in use, occupancy, or egress under this application.”

R10A (part of the lot is R8B): floor area ratio 10.58 built, above the 10.00 base zoning allows, which bonuses, transfers or older rules can permit.

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

The 10 most recent of 23 open-market sales since 2016, from the Department of Finance’s sales files.

Part of West End-Collegiate Historic District Extension (Historic District). 23 Landmarks Preservation Commission permits are on file.