343 Madison Avenue, Manhattan
Vacant land · Block 1279, Lot 23.
Building permits
- New Building — High-Rise, filed Aug 5, 2022, estimated cost $654.0M, 47 stories, described as “Construction of New Commercial High Rise Building. NYC Development HUB Consultation on 8.11.2021. ENERGY MODELING SUBMITTED UNDER MECHANICAL SUBSEQUENT FILING M00615380-S5.”
- Alteration, filed Oct 29, 2026, estimated cost $10K, described as “Installation of temporary construction fence as per plans in conjunction with NB construction. No change in use, egress or occupancy under this application. Fence shall comply with chapter 33 of NYC building code of 2022.”
- Alteration, filed Oct 16, 2026, estimated cost $10K, described as “Installation of temporary north pod platform as per plans in conjunction with NB construction. No change in use, egress or occupancy. Pod platform shall comply with chapter 33 of NYC building code of 2022.”
- Alteration, filed Oct 16, 2026, estimated cost $10K, described as “Installation of temporary scaffold stair tower # 3 (floors: 002 thru 003) as per plans during NB construction. No change in use, egress or occupancy. Scaffold stair tower shall comply with chapter 33 of 2022 NYC building code.”
- Alteration, filed Oct 15, 2026, estimated cost $10K, described as “Installation of interior access stair system as per plans during NB construction. No change in use, egress or occupancy. Access stair system shall comply with chapter 33 of 2022 NYC building code.”
- Alteration, filed Oct 5, 2026, estimated cost $10K, described as “Installation of temporary scaffold stair tower # 3 (floors: 001 thru 002) as per plans in conjunction with NB construction. No change in use, egress or occupancy. Scaffold stair tower shall comply with chapter 33 of NYC building code of…”
- Alteration, filed Sep 28, 2026, estimated cost $3K, described as “Installation of temporary storage of material on top of existing sidewalk shed (Filed under M01396143-I1-SH) per plan submitted. Work shall comply with 2022 building codes chapter 33. No change in use, egress and/or occupancy with this…”
- Alteration, filed Sep 4, 2026, estimated cost $10K, described as “Installation of temporary scaffold stair tower # 1 (floors: 005 thru 013) as per plans in conjunction with NB construction. No change in use, egress or occupancy. Scaffold stair tower shall comply with chapter 33 of 2022 NYC building code.”
- Alteration, filed Sep 4, 2026, estimated cost $10K, described as “Installation of a temporary scaffold stair tower # 2 (floors: sub-Cellar#1 thru 001 east) as per plans in conjunction with NB construction. No change in use, egress or occupancy. Scaffold stair tower shall comply with chapter 33 of 2022…”
- Alteration, filed Sep 4, 2026, estimated cost $10K, described as “Installation of temporary scaffold stair tower # 1 (floors: 001 & 002) as per plans in conjunction with NB construction. No change in use, egress or occupancy. Scaffold stair tower shall comply with chapter 33 of NYC building code of 2022.”
- Alteration, filed Sep 4, 2026, estimated cost $10K, described as “Installation of temporary scaffold stair tower # 2 (floors: 002 thru 005) as per plans in conjunction with NB construction. No change in use, egress or occupancy. Scaffold stair tower shall comply with chapter 33 of 2022 NYC building code.”
- Alteration, filed Sep 4, 2026, estimated cost $10K, described as “Installation of a temporary scaffold stair tower # 1 (floors: 013 thru 016) as per plans in conjunction with NB construction. No change in use, egress or occupancy. Scaffold stair tower shall comply with chapter 33 of 2022 NYC building…”
- Alteration, filed Aug 25, 2026, estimated cost $10K, described as “Installation of temporary scaffold stair tower # 2 (floors: 001 thru 002) as per plans in conjunction with NB construction. No change in use, egress or occupancy. Scaffold stair tower shall comply with chapter 33 of NYC building code of…”
- Alteration, filed Aug 25, 2026, estimated cost $10K, described as “Installation of temporary scaffold stair tower # 1 (floors: 002 thru 005) as per plans in conjunction with NB construction. No change in use, egress or occupancy. Scaffold stair tower shall comply with chapter 33 of NYC building code of…”
- Alteration, filed Aug 25, 2026, estimated cost $10K, described as “Installation of temporary scaffold stair tower # 1 (floors: cellar & 001) as per plans in conjunction with NB construction. No change in use, egress or occupancy. Scaffold stair tower shall comply with chapter 33 of NYC building code of…”
- Alteration, filed Jul 29, 2026, estimated cost $10K, described as “Equipment use: installation of a temporary personnel hoist complex as per plans in conjunction with NB construction. No change in use, egress, or occupancy. Hoist installed in accordance with chapter 33 of 2022 NYC building code.”
- Alteration, filed Jul 17, 2026, estimated cost $10K, described as “Equipment use: installation of a temporary personnel hoist complex as per plans in conjunction with NB construction . No change in use, egress or occupancy. Hoist installed in accordance with chapter 33 of 2022 NYC building code.”
- Alteration, filed Jul 15, 2026, estimated cost $4K, described as “Installation of temporary roof protection per plan submitted. Work shall comply with 2022 building code chapter 33. No change in use, egress and/or occupancy with this application.”
- Alteration, filed Jun 9, 2026, estimated cost $5K, described as “Installation of core platforms as per plans filed herewith. This application is filed in conjunction with NB M01394768-I1.”
- Alteration, filed Jun 9, 2026, estimated cost $5K, described as “Installation of temporary construction stairs as per plans filed herewith. This application is filed in conjunction with NB M01394768-I1.”
- Alteration, filed Jun 9, 2026, estimated cost $5K, described as “Use of temporary manlift construction equipment as per plans filed herewith. This application is filed in conjunction with NB M01394768-I1.”
- Alteration, filed Jun 3, 2026, described as “Installation of temporary construction fence 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 Jun 3, 2026, estimated cost $5K, described as “Installation and use of hoist complex as per plans filed herewith. This application is filed in conjunction with NB M01394768-I1.”
- Alteration, filed May 7, 2026, described as “Installation of temporary 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 Dec 19, 2025, estimated cost $1K, described as “Filing herewith for the Interior renovation of the Cafe and Lobby fitout as per plans. No change to use, egress or occupancy.”
30 more, older permits are in this building’s full list on the map.
Property taxes
- Assessment
- $16,982,550
- Market value (city estimate)
- $37,739,000
- Taxable value
- $0
- Assessed land
- $16,982,550
Zoning
C5-3: floor area ratio 0.00 built, 15.00 allowed by base zoning.
Flood zone
Current FEMA flood map: zone X, minimal flood hazard.
Board and land use applications
- 343 Madison Ave Non-ULURP Modification (City Planning 2026M0218): Special permit, Completed, filed Nov 14, 2025, decided May 5, 2026. A non-ULURP Modification of the 2021 special permits (C 210370 ZSM and C 210369 ZSM) in order to update the design note on the approved drawing sheets and apply a lower streetwall height exclusively to the 44th Street frontage, is being…
- 343 Madison Ave Special Permit Renewal (City Planning 2026M0211): Filed, filed Oct 6, 2025. This is an application by BP 347 Madison Associates, LLC (the “Applicant”) seeking a renewal of the special permits pursuant to ZR 81-633 granted by the City Planning Commission (“CPC”) on September 22, 2021 and by the New York City…
- 343 Madison avenue / MTA HQ (City Planning 2020M0494): Special permit, Completed, filed Apr 15, 2021, decided May 5, 2022. This is an application by BP 343 Madison Associates LLC in partnership with the MTA, for two Vanderbilt Corridor special permits (ZR 81-633 and 81-634) to facilitate the redevelopment of the site with a maximum 30.0 FAR commercial building…
- Greater East Midtown - Special Subdistrict (City Planning P2016M0316): Completed, decided Aug 15, 2017. This is an application by NYC Department of City Planning requesting a text amendment to establish the East Midtown Subdistrict and extend the Special Midtown District, and to rezone a half-block area from C5-2 to C5-3 to reinforce the…
In the news
Foundations Underway for KPF-Designed Office Skyscraper at 343 Madison Avenue in Midtown East, Manhattan, New York YIMBY, Mar 23, 2026.