501 10th Avenue, Manhattan
Industrial · built c. 1930 · Block 710, Lot 29.
Building permits
- Alteration, filed Jun 29, 2026, estimated cost $1K, described as “Replacement of two (2) existing 2ND floor rooftop units. No change to use, egress or occupancy”
- Alteration, filed Jun 1, 2026, estimated cost $1K, described as “Propose to install non-advertising sign for the purpose of announcing the rental of real property. No change in use, egress, or occupancy.”
- Alteration, filed Jun 1, 2026, estimated cost $1K, described as “Propose to install non-advertising sign for the purpose of announcing the rental of real property. No change in use, egress, or occupancy.”
- Alteration, filed Jun 1, 2026, estimated cost $1K, described as “Propose to install non-advertising sign for the purpose of announcing the rental of real property. No change in use, egress, or occupancy.”
- Alteration, filed Jun 1, 2026, estimated cost $1K, described as “Propose to install non-advertising sign for the purpose of announcing the rental of real property. No change in use, egress, or occupancy.”
- Alteration, filed May 8, 2026, estimated cost $2K, described as “Remove non-illuminated sign from structure as per plan. Sign previously filed under sg application # M01130443. Existing rooftop structure to remain. No change in use, egress or occupancy.”
- Alteration, filed Mar 20, 2026, estimated cost $41K, described as “Filing for the removal of interior partitions, equipment, package conveyance system, and finishes. No change in use, egress or occupancy.”
- Alteration, filed Mar 20, 2026, estimated cost $126K, described as “Filing for the removal of the interior partition work, storage units and the finishes. No change in use, egress or occupancy.”
- Alteration, filed Mar 20, 2026, estimated cost $177K, described as “Filing for the removal of the interior partition work, finishes, the package conveyor system. Repair and infill the area of the conveyor system. No change in use, egress or occupancy.”
- Alteration, filed Jul 28, 2025, described as “Inspection using industrial rope access techniques and methods. See attached plans designated primary site supervisor: Brian Barco”
- Alteration, filed Jan 17, 2025, described as “Inspect site conditions for telecom upgrade”
- Alteration, filed Oct 24, 2024
- Alteration, filed Jun 3, 2022, estimated cost $35K, described as “Modification to existing VERIZON site. Replace 9 antennas, install 3 antennas, replace 12 RRHs, and install 9 new RRHs on the roof.”
- Alteration, filed Jan 11, 2021, estimated cost $26K, described as “Filing for 13 infared space unit heaters at first floor and replace gas piping leaking at cellar. No change in use, egress or occupancy due to scope of work..”
- Alteration, filed Aug 27, 2019, estimated cost $18K, described as “AT&T / Replacement of existing telecommunications antennas with related RRH units on roof. Retrofit of cabinets in the existing equipment platform on roof. All work in compliance with TPPN 5/98. No change to occupancy, use, or egress.”
- Alteration, filed Dec 7, 2018, estimated cost $3K, described as “Modifications to existing Verizon Telecommunications site. Replacement of three Verizon antennas on roof. All in conformance with TPPN 5/98. No change in use, egress, or occupancy.”
Property taxes
- Assessment
- $22,741,200
- 2026–27 tax
- $2,293,717
- Market value (city estimate)
- $50,536,000
- Taxable value
- $21,144,150
- Assessed land
- $1,741,950
- Assessed improvements
- $20,999,250
Zoning
C2-8: floor area ratio 6.30 built, 10.00 allowed by base zoning.
Flood zone
Current FEMA flood map: zone X, minimal flood hazard.
Board and land use applications
- 551 Tenth Ave. (HY DIB application) (City Planning P2014M0430): Completed, decided Apr 20, 2015. This is a private application for a Hudson Yards District Improvement Bonus Chair Certification pursuant to ZR 93-31 to facilitate the development of a residential building.