638 Columbus Avenue, Manhattan
Apartment building · 231 units · built 1986 · Block 1221, Lot 29.
Building permits
- Alteration, filed Oct 20, 2026, estimated cost $12K, described as “Installation of a temporary heavy-duty sidewalk shed and OHP via 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 Oct 9, 2026, described as “FISP INSPECTION (Facade Inspection Safety Program). INDUSTRIAL ROPE ACCESS TECHNIQUES AND METHODS. SEE ATTACHED PLANS. Designated Primary Site supervisor: Jesus Decola”
- Alteration, filed Apr 29, 2025, described as “Installation of a suspended scaffold for Facade Inspection and repair as per plan submitted. No change to egress or occupancy”
- Alteration, filed Mar 18, 2025, estimated cost $20K, described as “Installation of a temporarily heavy-duty sidewalk shed and Overhead protection 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 Jan 29, 2025, estimated cost $248K, described as “Filing for facade repairs from 01 thru 21, including replacement of 2LF of metal coping at bulkhead. Scaffold and sidewalk shed to be filed under separate applications.”
- Alteration, filed Jul 9, 2024, estimated cost $1K, described as “Non-illuminated non-advertising accessory wall sign - in property lines - mount sinai doctors. No change of use, egress or occupancy.”
- Alteration, filed Jun 8, 2024, described as “FISP INSPECTION (Facade Inspection Safety Program) INDUSTRIAL ROPE ACCESS TECHNIQUES AND METHODS. SEE ATTACHED PLANS Designated Primary Site supervisor: Jesus Decola”
- Alteration, filed Feb 20, 2023, estimated cost $15K, described as “Carrier: T-Mobile. Modification of an existing antenna site. Relocate (1) telecom cabinet. Relocate (1) existing HVAC. Install (2) additional platform extensions and (1) FDNY access platform on the roof. No change in use, egress or…”
Property taxes
- Assessment
- $32,727,150
- 2026–27 tax
- $3,734,607
- Market value (city estimate)
- $72,727,000
- Taxable value
- $30,023,370
- Assessed land
- $6,795,000
- Assessed improvements
- $25,932,150
Zoning
C1-9 (part of the lot is R7-2): floor area ratio 7.93 built, 10.00 allowed by base zoning.
Flood zone
Current FEMA flood map: zone X, minimal flood hazard.