834 Riverside Drive, Manhattan

Co-op · 31 units · built c. 1921 · Block 2136, Lot 18.

Building permits

Alteration, filed Mar 4, 2025, estimated cost $1.6M, described as “Masonry restoration including face brick rebuilding & repointing, window lintel & window sill replacement, localized parapet rebuilding, roof & window replacement and installation of new doors at building entrance. No change to use,…”
Alteration, filed May 15, 2023, estimated cost $9K, described as “Proposed installation of heavy duty sidewalk shed as per plans. Live load 300 per square feet. Sidewalk shed shall comply with chapter # 33 of the 2014 code. No change in use occupancy or egress under this application.”
Alteration, filed Oct 28, 2021, estimated cost $78K, described as “Replace boiler and oil burner as per plans. No change in use, egress or occupancy.”
Alteration, filed Oct 28, 2021, estimated cost $30K, described as “Install new chimney liner in existing masonry chimney as per plans. No change in use, egress or occupancy.”
Alteration, filed Nov 5, 2020, estimated cost $83K, described as “Installation (replace) of (1)low pressure steam boiler (#2 fuel oil) and (2) domestic how water heaters (#2 fuel oil) as per plan”

Article XI exemption, through Jun 30, 2029, about $98,917 a year below the full tax.

R8: floor area ratio 3.32 built, 6.02 allowed by base zoning.

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

The 10 most recent of 13 open-market sales since 2016, from the Department of Finance’s sales files.