520 Madison Avenue
New York, NY 10022 Issued Oct 6, 2026
Declared value
$6.3M$6,266,795, whole project
Size
1,058sqftThis permit only
Floors
43
Units
Not reported
Scope of work
ALT-CO to propose increased occupant load for offices on the 28th & 29th floors. Minor demo to include but not limited to removal of walls, doors/frames, flooring, ceiling and finishes in the areas indicated...
Permit timeline
- AppliedMar 23, 2026197 days in review
- IssuedOct 6, 20268d ago
- ExpiresSep 30, 2027in 351 days
Details
- Project type
- Major alteration
- Work class
- General construction
- Sector
- Not reported
- Permit type
- Major alteration
- Council district
- 4
- ZIP code
- 10022
- Status
- Issued
- Permit no.
- M01355353-I1-GC
All permits in this project 5
Remodel
520 Madison AvenueALT-CO to propose increased occupant load for offices on the 28th & 29th floors. Minor demo to include but not limited to removal of walls, doors/frames, flooring, ceiling and finishes in the areas indicated...
8d ago · 1,058 sqft
THIS PERMIT
Remodel
520 Madison AvenueInterior renovation of office space on 36th and 37th floors.
4mo ago · 2,100 sqft
Remodel
520 Madison AvenueInterior renovation of office space on 36th and 37th floors.
4mo ago · 2,100 sqft
Remodel
520 Madison AvenueRemoval and installation of interior non-load bearing partitions, doors, frames, ceilings, millwork, lighting, flooring, and related finishes. Installation of convenience stair.
4mo ago · 31,980 sqft
Remodel
520 Madison AvenueStructural modifications associated with partial demo of slab for new interconnecting stair opening.
4mo ago · 31,980 sqft