Neighborhoods › Midtown South-Flatiron-Union Square

51 Madison Avenue, Manhattan: 26 building jobs on file

Building Identification Number 1016880 · Midtown South-Flatiron-Union Square. Newest first.

Mechanical/plumbing work: Filing herewith sprinkler work at existing first…, est. $70K

Approved · filed Sep 21, 2026 · est. $70,080

Mechanical/plumbing work: Modification to existing plumbing fixtures and…, est. $130K

Approved · filed Sep 21, 2026 · est. $130,455

Mechanical/plumbing work: Modification to existing plumbing fixtures and…, est. $65K

Approved · filed Sep 21, 2026 · est. $64,500

Full demolition of 34-story building, est. $614K

Approved · filed Sep 17, 2026 · est. $613,544

Mechanical/plumbing work: Modification to existing hvac system as per plans…, est. $383K

Approved · filed Sep 16, 2026 · est. $383,160

Interior renovation: Structural modifications as per plans filed herewith.…, est. $3.4M

Approved · filed Sep 15, 2026 · est. $3,429,888

Full demolition of 34-story building, est. $1.7M

Permit Entire · filed Sep 13, 2026 · est. $1,742,389

Facade/scaffold work: Inspection using industrial rope access techniques and methods.…

Objections · filed Sep 8, 2026 · est. not stated

Mechanical/plumbing work: Modification to existing hvac system as per plans…, est. $45K

Permit Entire · filed Sep 2, 2026 · est. $44,550

Interior renovation: Removal and installation of interior non bearing…, est. $7.1M

Approved · filed Jun 9, 2026 · est. $7,056,889

Interior renovation: Removal of interior non bearing partitions and related…, est. $978K

Permit Entire · filed Jun 4, 2026 · est. $978,000

Mechanical/plumbing work: Modification to existing hvac system as per plans…, est. $530K

Permit Entire · filed Jun 4, 2026 · est. $530,000

Mechanical/plumbing work: Modification to existing hvac system as per plans…, est. $2.9M

Approved · filed Jun 3, 2026 · est. $2,888,398

Mechanical/plumbing work: Modification to existing sprinkler system and…, est. $613K

Approved · filed Jun 3, 2026 · est. $613,125

Interior renovation: Add new steel framing for moveable partition supports…, est. $376K

Approved · filed Jun 3, 2026 · est. $376,000

Mechanical/plumbing work: Modification to existing sprinkler and plumbing…, est. $79K

Permit Entire · filed Jun 3, 2026 · est. $79,000

Full demolition of 34-story building, est. $614K

Permit Entire · filed May 17, 2026 · est. $613,544

Mechanical/plumbing work: Modification to existing hvac system as per plans…, est. $383K

Permit Entire · filed May 17, 2026 · est. $383,160

Mechanical/plumbing work: Modification to existing plumbing fixtures and…, est. $130K

Permit Entire · filed May 14, 2026 · est. $130,455

Mechanical/plumbing work: Filing herewith mechanical work at existing first…, est. $150K

Approved · filed May 10, 2026 · est. $150,150

Mechanical/plumbing work: Filing herewith mechanical work at existing first…, est. $150K

Approved · filed Apr 2, 2026 · est. $150,150

Interior renovation: Filing herewith structural work at existing first floor…, est. $15K

Approved · filed Mar 8, 2026 · est. $15,000

Interior renovation: Filing herewith interior renovation at existing first…, est. $750K

Approved · filed Feb 17, 2026 · est. $750,050

Interior renovation: Filing herewith drawings indicating soft removal at…, est. $525K

Approved · filed Jan 5, 2026 · est. $524,867

Mechanical/plumbing work: Filing herewith mechanical work at existing first…, est. $150K

Approved · filed Nov 30, 2025 · est. $150,150

Interior renovation: Reconfigure egress stair by eliminating fire tower with…, est. $100K

Approved · filed Oct 19, 2025 · est. $99,990

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