313 West 20th Street, Manhattan

Two-family · built c. 1900 · Block 744, Lot 30.

Building permits

Alteration, filed Jun 26, 2026, estimated cost $3K, described as “Installation of a temporarily heavy-duty sidewalk shed 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 Jun 2, 2026, estimated cost $3K, described as “Installation of a temporarily 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 16, 2026, estimated cost $45K, described as “Installation of new sprinkler system.”
Alteration, filed Feb 10, 2026, estimated cost $165K, described as “Submitting filing for plumbing scope associated with a townhouse renovation in conjunction with Alt1 #M01295109. Work includes new piping and installation of all new fixtures.”
Alteration, filed Dec 10, 2025, estimated cost $667K, described as “Conversion of an existing two-family townhouse into a single-family residence. Proposed work includes the interior renovation and reconfiguration of existing spaces, including the installation of new non-load-bearing partitions ceilings,…”
Alteration, filed Oct 21, 2025, estimated cost $111K, described as “Herewith, please find the filing for interior demolition, which includes the removal of partitions, ceilings, floors, and fixtures throughout. There will be no changes to use, egress, or occupancy.”

R7B: floor area ratio 4.00 built, above the 3.00 base zoning allows, which bonuses, transfers or older rules can permit.

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

Open-market sales since 2016, from the Department of Finance’s sales files.