NYC DOB record · M01443471-I1

21 Maiden Lane

21 Maiden Lane, Manhattan, NY 10038

Alteration filing in Financial District-Battery Park City, 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. What every status means

ApprovedAlteration filing

NYC Department of Buildings · w9ak-ipjd · accessed Sep 12, 2026 · Verify the source row

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NYC DOB RECORD · M01443471-I1

21 Maiden Lane

Manhattan, NY 10038

Alteration filing · status dated Sep 9, 2026

Current record
Approved
Proposed scale
9 stories
Dwelling units
30
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 M01443471-I1 as a alteration filing at 21 Maiden Lane, Manhattan, NY 10038. Its latest published status category is Approved, dated Sep 9, 2026. The filing records 9 proposed stories and 30 proposed dwelling units.

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
Sep 9, 2026
Proposed scale
9 proposed stories and 30 proposed dwelling units
Applicant of recordSee the 718 filings that name Kz Engineering, P.C
FiledSep 9, 2026
Current recordApproved
Proposed scale9 stories
Recorded cost$1

What the filing says

A public-record reading of the proposed work.

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.

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 8-story elevator apartment building built in 1900, with 30 homes, on a 4,231 sq ft lot.

Built
1900
Last altered
2000
Floors
8
Residential units
30
Building type
Elevator apartment building
Land use
Mixed residential and commercial
Zoning district
C5-5
Lot area
4,231 sq ft
Building area
37,800 sq ft

Lot facts come from NYC Department of City Planning, Primary Land Use Tax Lot Output (PLUTO) (64uk-42ks), accessed Sep 12, 2026. They describe the tax lot, not this filing.

Violation record

Are there open violations here?

No open violations are recorded for this building. 34 notices are on file, all with a recorded resolution.

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 11, 2026.

Recorded timeline

Dates published by the Department of Buildings.

  1. Application filed

    DOB received filing M01443471-I1.

    01
  2. First permit date recorded

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

    02
  3. Current status updated

    The latest recorded filing status is “Permit Entire.”

    03

For scale: half of DOB filings are permitted within 18 days of being filed and a quarter take longer than 4 months, measured across 50,115 filings that carry both dates. How long a permit takes, by work type and borough

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
M01443471-I1
BIN
1001096
BBL
1000650006
Review type
Professional Certification
Existing stories
9
Proposed stories
9
Existing dwelling units
30
Proposed dwelling units
30