511 Third Avenue, Manhattan
Apartment building · 229 units · built 2021 · Block 915, Lot 2.
Building permits
- Demolition, filed Oct 30, 2025
- Alteration, filed Aug 28, 2023, estimated cost $1K, described as “This application is filed for a Temporary Use Permit for a sales office including model apartments pursuant to section AC 28-111 and Buildings Bulletin 2010-002. In conjunction with NB# 121205640”
- Alteration, filed Jan 9, 2023, estimated cost $50K, described as “Filing herewith for installation of Boilers”
- Alteration, filed Jul 31, 2022, estimated cost $3K, described as “Installation of temporary construction plywood fence as per plans during construction. No change in use, egress or occupancy. Plywood fence shall comply with chapter 33 of NYC building code of 2014.”
- Alteration, filed Jul 31, 2022, estimated cost $5K, described as “Installation of heavy duty sidewalk shed as per plans. Sidewalk shed shall comply with chapter #33 of the 2014 code no change in use, egress or occupancy under this application.”
- Alteration, filed Jun 30, 2022, estimated cost $10K, described as “Installation of pipe scaffolding and needle beams as per plans during construction. No change in use, egress or occupancy. All equipment shall comply with chapter 33 of NYC building code of 2014.”
- Alteration, filed Dec 21, 2021, estimated cost $5K, described as “Use of temporary mini crane as per plans filed herewith. This applicationis filed in conjunction with NB-121205640.”
- Alteration, filed Nov 24, 2021, estimated cost $20K, described as “Installation of dual 6500 # capacity personnel/material hoists during NB const, filed sep. Hoists shall comply with ch #33 of the NYC bc. No change in use, occupancy or egress under this application. Elevator application submitted…”
- Alteration, filed Nov 24, 2021, estimated cost $18K, described as “Installation and use of climbing platform as per plans submitted. Climbing platform shall comply with chapter #3 plication involves no changeinoccupancy, use or egress.”
- Alteration, filed Nov 4, 2021, estimated cost $3K, described as “Installation of heavy duty sidewalk shed during NB const, filed sep. Sidewalk shed shall comply with ch #33 of the NYC bc. No change in use, occupancy or egress under this application.”
- Alteration, filed Nov 4, 2021, estimated cost $2K, described as “Installation of temporary roof protection at adjacent properties during NB bldg const, filed sep. Roof protection shall comply with ch #33 of the NYC bc. No change in use, occupancy or egress under this application.”
- Alteration, filed Nov 4, 2021, estimated cost $2K, described as “Installation of plywood fence as per drawings. Plywood fence shall comply with ch #33 of the NYC bc. No change in use, occupancy or egress under this application.”
- Alteration, filed Oct 20, 2021, estimated cost $18K, described as “Installation and use of shearwall platform as per plans submitted. Shearwall platform shall comply with chapter #33 of NYC building code. This application involves no change inoccupancy, use or egress.”
- Alteration, filed Oct 26, 2020, estimated cost $1K, described as “Application filed for underground pluming, in conjunction with NB# 121205640”
- Alteration, filed Oct 23, 2020, estimated cost $1K, described as “Filing for construction fence with NB#121205640”
- Alteration, filed Jun 18, 2020, estimated cost $1K, described as “Application filed for temporary construction fence in conjunction with NB# 121205640”
- Alteration, filed Mar 5, 2020, estimated cost $2K, described as “Install new Sprinkler, Standpipe System in conjunction with New Building application 121205640. Standpipe is designed to meet Class I requirements.”
- Alteration, filed Feb 6, 2020, estimated cost $1K, described as “Temporary Dry Construction Standpipe in conjunction with NB# 121205640”
- Alteration, filed Oct 22, 2019, described as “Installation of pipe scaffold as per plans. No change in use, egress or occupancy.”
- Alteration, filed Sep 30, 2019, estimated cost $1K, described as “Installation of temporary 30' high pipe scaffold originating (off shed)for facade repair work as per plan. No change in use egress or occupancy,pipe scaffold shall comply with CHAPTER#33 of 2014 the ny building code.”
- Alteration, filed Sep 30, 2019, estimated cost $1K, described as “Installation of temporary heavy duty sidewalk shed as per plans. No change in use, egress or occupancy.sidewalk shed shall comply with chapter #33 of the NYC building code.live load 300PSF.”
- Alteration, filed Aug 16, 2019, estimated cost $5K, described as “Demolition of fire sprinkler system”
- Alteration, filed May 10, 2019, estimated cost $5K, described as “Application filed to erect 8.0 foot high plywood construction fence. THIS APPLICATION INCLUDES THE FOLLOWING DEMOLITION APPLICATION #s: 122091235”
- Alteration, filed Jan 3, 2019, estimated cost $9K, described as “Alteration type 3 - construction equipment - scaffold proposed installation of pipe scaffold for remedial repairs as per plans. No change in use occupancy or egress under this application.”
- Alteration, filed Dec 20, 2018, estimated cost $4K, described as “Alteration type 3 - construction equipment - sidewalk-shed proposed installation of heavy duty sidewalk shed for remedial repairs as per plans. No change in use occupancy or egress under this application. Live LOAD300 per square feet.…”
7 more, older permits are in this building’s full list on the map.
Property taxes
- Assessment
- $32,749,200
- 2026–27 tax
- $673,540
- Market value (city estimate)
- $72,776,000
- Taxable value
- $5,414,741
- Assessed land
- $2,133,450
- Assessed improvements
- $30,615,750
Tax breaks
- 421-a exemption, through Jun 30, 2059, about $3,400,133 a year below the full tax.
Zoning
C1-9 (part of the lot is C1-9A): floor area ratio 16.66 built, above the 10.00 base zoning allows, which bonuses, transfers or older rules can permit.
Flood zone
Current FEMA flood map: zone X, minimal flood hazard.
In the news
Murray Nears Completion at 509 Third Avenue in Murray Hill, Manhattan, New York YIMBY, Aug 1, 2023.