NYC DOB record · M01248972-S4

520 Madison Avenue

520 Madison Avenue, Manhattan, NY 10022

Alteration filing in Midtown-Times Square, Manhattan. The latest DOB status is loc issued.

DOB has issued a Letter of Completion, which records that the work in this filing is finished.

Recorded as completedAlteration filing

NYC Department of Buildings · w9ak-ipjd · accessed Sep 1, 2026 · Verify the source row

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520 Madison Avenue record graphic showing the DOB filing status and stated proposal scale
Filing data portrait

A page-specific reading of the filing status, location and stated scale. Values are drawn from the cited DOB record.

Address record at a glance

What is filed at this address?

NYC DOB lists filing M01248972-S4 as a alteration filing at 520 Madison Avenue, Manhattan, NY 10022. Its latest published status category is Recorded as completed, dated Aug 27, 2026. The filing records 43 proposed stories.

A filing or approval does not by itself confirm that work is underway. Proposed details may change in later DOB records.
Filing type
Alteration filing
Latest status
Recorded as completed
Latest status date
Aug 27, 2026
Proposed scale
43 proposed stories
Complete building dossierView all 4 filings associated with BIN 1035727Applicant of recordSee the 3 filings that name Active Design Group Engineering
FiledAug 28, 2025
Current recordRecorded as completed
Proposed scale43 stories
Recorded cost$110,000

What the filing says

A public-record reading of the proposed work.

Structural modifications associated with partial demo of slab for new interconnecting stair opening as per plans filed herewith. No change in use, egress or occupancy under this application.

Street Futures classifies this record as a alteration filing based on the filing type and work flags published by the Department of Buildings. This classification helps organize the map; it does not add scope that is absent from the DOB record.

The lot this filing sits on

What is already here?

The lot holds a 43-story office building built in 1982, on a 43,532 sq ft lot.

Built
1982
Floors
43
Residential units
0
Building type
Office building
Land use
Commercial and office
Zoning district
C5-3
Lot area
43,532 sq ft
Building area
1,015,287 sq ft

Lot facts come from NYC Department of City Planning, Primary Land Use Tax Lot Output (PLUTO) (64uk-42ks), accessed Sep 1, 2026. They describe the tax lot, not this filing.

Recorded timeline

Dates published by the Department of Buildings.

  1. Application filed

    DOB received filing M01248972-S4.

    01
  2. Application approved

    The application reached an approved status in the DOB record.

    02
  3. First permit date recorded

    DOB lists a first permit date. This does not by itself confirm current construction activity.

    03
  4. Current status updated

    The latest recorded filing status is “LOC Issued.”

    04
  5. Sign-off date recorded

    DOB lists a sign-off date for this filing.

    05

Scope and identifiers

The details used to match this filing.

DOB filing number
M01248972-S4
BBL
1012890014
Review type
Professional Certification
Existing stories
43
Proposed stories
43
Existing dwelling units
0
Proposed dwelling units
0
Structural work