445 West 21st Street, Manhattan
Apartment building · 10 units · built c. 1898 · Block 719, Lot 15.
Building permits
- Alteration, filed Jul 10, 2020, estimated cost $82K, described as “Proposed mh work on 002-005,rof including but not limited to, installation of (8)accu's and associated piping (condensate & refrigerant) on rof and (1) unit heater as per plans. No changes to existing ductwork. No change in use, egress or…”
- Alteration, filed Oct 20, 2019, estimated cost $53K, described as “Pl work to take place udg, cel + 1ST fl.to include new fixtures with associated tanks and piping as per plans.new gas meter in cel and assoc. Piping and eq.as per con ed. No change to use, egress or occupancy.”
- Alteration, filed Oct 20, 2019, estimated cost $84K, described as “Mechanical work in cel-001 and osp to include, but not limited to, new electric radiant heaters, (3)new heat pumps (indoor & outdoor), (1)new unit heater, including new associated duct work and piping as per plans. No change in use, egress…”
- Alteration, filed Oct 16, 2019, estimated cost $65K, described as “Proposed new egress stair and light well as shown on plans.work includes,but not limited to,framework&steel work in cellar + 1ST fl. Rof includes new dunnage for mh units. No change in use, egress or occ.”
- Alteration, filed Sep 16, 2019, estimated cost $8K, described as “Alteration type 3 - construction equipment - scaffoldinstallation of pipe scaffold as per plans. Pipe scaffold shall comply withchapter 33 of the NYC building code. No change in use, egress or occupancy.”
- Alteration, filed Sep 4, 2019, estimated cost $8K, described as “Alteration type 3 - construction equipment - sidewalk-shed installation of temporary sidewalk shed as per plans. No change in use, egress r occupancy. Sidewalk shed shall comply with chapter #33 of the NYC building code.”
Property taxes
- Assessment
- $1,910,700
- 2026–27 tax
- $153,552
- Market value (city estimate)
- $4,246,000
- Taxable value
- $1,234,436
- Assessed land
- $477,000
- Assessed improvements
- $1,433,700
Zoning
R7B: floor area ratio 3.70 built, above the 3.00 base zoning allows, which bonuses, transfers or older rules can permit.
Flood zone
Current FEMA flood map: zone X, moderate risk: a 0.2% chance of flooding each year.
Recent sales
- Aug 14, 2018: $9,350,000
Open-market sales since 2016, from the Department of Finance’s sales files.
Landmarks
Part of Chelsea Historic District (Historic District). 9 Landmarks Preservation Commission permits are on file.