520 Madison Avenue, Manhattan: 38 building jobs on file

Building Identification Number 1035727 · Midtown-Times Square. Newest first.

Mechanical/plumbing work: Sprinkler system modification as per plans filed…, est. $5K

Permit Entire · filed Sep 13, 2026 · est. $4,900

Interior renovation: Interior commercial space renovation as per plans filed…, est. $68K

Permit Entire · filed Sep 10, 2026 · est. $68,000

Mechanical/plumbing work: New vav balancing and controls as per plans filed…, est. $9K

Permit Entire · filed Sep 10, 2026 · est. $9,000

Mechanical/plumbing work: Modification/additions to existing sprinkler…, est. $400K

Approved · filed Sep 3, 2026 · est. $400,000

Mechanical/plumbing work: Modification/additions to existing hvac system and…, est. $3.9M

Approved · filed Aug 16, 2026 · est. $3,925,000

Mechanical/plumbing work: Removal and replacement of existing sewage ejector…, est. $30K

Permit Entire · filed Jun 29, 2026 · est. $30,000

Mechanical/plumbing work: Modification/additions to existing sprinkler system…, est. $10K

Approved · filed Jun 29, 2026 · est. $10,000

Mechanical/plumbing work: Installation of water cooled packaged air…, est. $375K

Permit Entire · filed Jun 23, 2026 · est. $375,000

Interior renovation: Replacement of the retail entry doors at the storefront…, est. $80K

Permit Entire · filed Jun 22, 2026 · est. $80,000

Interior renovation: Interior renovation of office space on 36th and 37th…, est. $697K

Permit Entire · filed Jun 7, 2026 · est. $696,795

Interior renovation: Relocation of ductwork in connection with office renovation

Permit Entire · filed Jun 7, 2026 · est. not stated

Mechanical/plumbing work: Modification of existing sprinkler system no change in use…

Permit Entire · filed Jun 7, 2026 · est. not stated

Interior renovation: Removal and installation of plumbing fixtures in connection with…

Permit Entire · filed Jun 7, 2026 · est. not stated

Interior renovation: Removal of interior non-load bearing partitions, doors…, est. $121K

Permit Entire · filed Apr 26, 2026 · est. $120,960

Interior renovation: 1st floor and mezzanine zoning floor area reallocation…, est. $5K

Approved · filed Mar 31, 2026 · est. $5,000

No Work

Approved · filed Mar 31, 2026 · est. not stated

Interior renovation: Alt-co to propose increased occupant load for offices on…, est. $10K

Permit Entire · filed Mar 22, 2026 · est. $10,000

Interior renovation: Removal and installation of interior non-load bearing…, est. $5.5M

Permit Entire · filed Mar 22, 2026 · est. $5,500,000

Mechanical/plumbing work: Installation of air conditioning system…, est. $2.0M

Permit Entire · filed Mar 22, 2026 · est. $2,000,000

Mechanical/plumbing work: Installation of plumbing fixtures and related…, est. $600K

Permit Entire · filed Mar 22, 2026 · est. $600,000

Mechanical/plumbing work: Installation of full floor sprinkler coverage…, est. $320K

Permit Entire · filed Mar 22, 2026 · est. $320,000

Interior renovation: Structural modifications associated with partial demo of…, est. $60K

Permit Entire · filed Mar 22, 2026 · est. $60,000

Mechanical/plumbing work: Modification/additions to existing plumbing…, est. $465K

Permit Entire · filed Mar 18, 2026 · est. $465,000

Mechanical/plumbing work: Modification/additions to existing sprinkler system…, est. $96K

Permit Entire · filed Mar 18, 2026 · est. $96,000

Interior renovation: Installation of interior non-load bearing partitions…, est. $5.3M

Permit Entire · filed Mar 17, 2026 · est. $5,337,708

Mechanical/plumbing work: Modification/additions to existing hvac systems…, est. $1.3M

Permit Entire · filed Mar 17, 2026 · est. $1,334,427

Mechanical/plumbing work: Removal of all existing hvac systems and…, est. $120K

LOC Issued · filed Jan 19, 2026 · est. $120,000

Interior renovation: Removal of interior non-load bearing partitions, doors…, est. $165K

LOC Issued · filed Jan 12, 2026 · est. $165,000

Mechanical/plumbing work: Removal of existing plumbing fixtures and related…, est. $8K

LOC Issued · filed Jan 12, 2026 · est. $8,000

Mechanical/plumbing work: Removal of existing sprinkler heads (wet) and…, est. $23K

LOC Issued · filed Jan 12, 2026 · est. $23,000

Interior renovation: Installation of interior non-load bearing partitions…, est. $1.5M

Approved · filed Dec 8, 2025 · est. $1,500,000

Mechanical/plumbing work: Modification/additions to existing hvac ductwork…, est. $450K

Approved · filed Dec 8, 2025 · est. $450,000

Mechanical/plumbing work: Modification/additions to existing sprinkler…, est. $115K

Approved · filed Dec 8, 2025 · est. $115,000

Mechanical/plumbing work: Modification/additions to existing plumbing…, est. $489K

Approved · filed Nov 12, 2025 · est. $489,000

Mechanical/plumbing work: Removal of existing plumbing fixtures and related…, est. $15K

LOC Issued · filed Nov 2, 2025 · est. $15,000

Mechanical/plumbing work: Removal of existing sprinkler heads and piping and…, est. $25K

LOC Issued · filed Nov 2, 2025 · est. $25,000

Mechanical/plumbing work: Removal of all existing hvac ductwork/piping…, est. $24K

LOC Issued · filed Oct 27, 2025 · est. $24,000

Interior renovation: Removal of interior non-load bearing partitions, doors…, est. $140K

LOC Issued · filed Oct 26, 2025 · est. $140,000

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