NYC DOB record · M01435620-I1

18 West 21 Street

18 West 21 Street, Manhattan, NY 10010

Alteration filing in Midtown South-Flatiron-Union Square, Manhattan. The latest DOB status is permit entire.

DOB has issued the permit covering the full scope of this filing, so the work is cleared to proceed.

ApprovedAlteration filing

NYC Department of Buildings · w9ak-ipjd · accessed Aug 29, 2026 · Verify the source row

Open full map
18 West 21 Street 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 M01435620-I1 as a alteration filing at 18 West 21 Street, Manhattan, NY 10010. Its latest published status category is Approved, dated Aug 25, 2026. The filing records 11 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
Approved
Latest status date
Aug 25, 2026
Proposed scale
11 proposed stories
FiledAug 12, 2026
Current recordApproved
Proposed scale11 stories
Recorded cost$50,000

What the filing says

A public-record reading of the proposed work.

Interior demo on 11th floor as per plans filed herewith.

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 11-story office building built in 1907, on a 4,600 sq ft lot.

Built
1907
Floors
11
Residential units
0
Building type
Office building
Land use
Commercial and office
Zoning district
C6-4A
Lot area
4,600 sq ft
Building area
53,500 sq ft
Historic district
Ladies' Mile Historic District

Lot facts come from NYC Department of City Planning, Primary Land Use Tax Lot Output (PLUTO) (64uk-42ks), accessed Sep 5, 2026. They describe the tax lot, not this filing.

Violation record

Are there open violations here?

The Department of Buildings has 2 open notices on record for this building, out of 38 notices on file; the most recent was issued Sep 29, 2006.

  • Elevator

    Issued Sep 29, 2006

  • Elevator

    Issued Sep 29, 2006

A violation is a notice the Department of Buildings recorded against the building. It is not a judgment, and many concern paperwork rather than safety. Open means the agency has not recorded a resolution, which is not the same as the problem still existing. From NYC Department of Buildings, DOB Violations (3h2n-5cm9), accessed Sep 5, 2026.

Recorded timeline

Dates published by the Department of Buildings.

  1. Application filed

    DOB received filing M01435620-I1.

    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 “Permit Entire.”

    04

Scope and identifiers

The details used to match this filing.

Where a field reads “empty in the source”, the city published this filing without that value. It is not an omission on our side, and nothing here is inferred to fill a gap.

DOB filing number
M01435620-I1
BIN
1015504
BBL
1008220052
Review type
Standard Plan Examination
Existing stories
11
Proposed stories
11
Existing dwelling units
0
Proposed dwelling units
0
General construction