309 Columbus Avenue, Manhattan
Apartment building · 23 units · built c. 1900 · Block 1127, Lot 61.
Building permits
- Alteration, filed Nov 3, 2026, described as “Facade restoration by outrigger system.”
- Alteration, filed Sep 11, 2026, estimated cost $5K, described as “Installation of a temporary 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 20, 2026, estimated cost $41K, described as “Installation of (1) new 2 ton heat pump ductless split system.”
- Alteration, filed Feb 5, 2026, estimated cost $15K, described as “Replace existing metal stair case in kind.”
- Alteration, filed Dec 1, 2025, estimated cost $1K, described as “Erect a non-illuminated business accessory wall sign. No change in use, egress, or occupancy.”
- Alteration, filed Dec 1, 2025, estimated cost $792, described as “Erect a non-illuminated business accessory wall sign. No change in use, egress, or occupancy.”
- Alteration, filed Oct 10, 2025, described as “Facade restoration by outrigger system.”
- Alteration, filed Aug 8, 2025, estimated cost $5K, 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 Aug 6, 2025, estimated cost $5K, 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 May 7, 2025, estimated cost $480K, described as “Additional amended work: Replace front and rear parapet walls, recover associated roofing.”
- Alteration, filed May 7, 2025, estimated cost $129K, described as “Replace brickwork and copingstones, spot pointing of masonry, miscellaneous caulking, wire brush and repaint existing fire escape.”
- Alteration, filed May 6, 2024, estimated cost $10K, described as “Replace existing metal stair case in kind.”
- Alteration, filed Jun 22, 2020, estimated cost $93K, described as “Replace new gas meter bar and gas meter. Replace new overhead gas piping in cellar with lockable valves for risers. Replace new risers to cooking appliances in apartments. No change in means of egress, use group, or occupancy.”
- Alteration, filed Jun 22, 2018, described as “Installation of heavy duty sidewalk shed as per plans. No change in use, egress or occupancy.”
Property taxes
- Assessment
- $8,189,550
- 2026–27 tax
- $981,096
- Market value (city estimate)
- $18,199,000
- Taxable value
- $7,887,260
- Assessed land
- $2,560,500
- Assessed improvements
- $5,629,050
Zoning
C1-8A: floor area ratio 2.86 built, 7.52 allowed by base zoning.
Flood zone
Current FEMA flood map: zone X, minimal flood hazard.
Landmarks
Part of Upper West Side/Central Park West Historic District (Historic District). 50 Landmarks Preservation Commission permits are on file.