NYC DOB record · M01240558-I1

121 Nassau Street

121 Nassau Street, 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 Aug 24, 2026 · Verify the source row

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NYC DOB RECORD · M01240558-I1

121 Nassau Street

Manhattan, NY 10038

Alteration filing · status dated Aug 20, 2026

Current record
Approved
Proposed scale
47 stories
Dwelling units
305
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 M01240558-I1 as a alteration filing at 121 Nassau Street, Manhattan, NY 10038. Its latest published status category is Approved, dated Aug 20, 2026. The filing records 47 proposed stories and 305 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
Aug 20, 2026
Proposed scale
47 proposed stories and 305 proposed dwelling units
Complete building dossierView all 4 filings associated with BIN 1079072
FiledJun 20, 2025
Current recordApproved
Proposed scale47 stories
Recorded cost$1.2M

What the filing says

A public-record reading of the proposed work.

Facade repairs to include concrete repairs, gasket replacements, flashing, expansion jointrepairs, curtain wall repairs, and concrete coating. no change to use occupancy or egress.

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 46-story condominium built in 1883, with 67 homes, on a 20,080 sq ft lot.

Built
1883
Last altered
2013
Floors
46
Residential units
67
Building type
Condominium
Land use
Mixed residential and commercial
Zoning district
C5-5
Lot area
20,080 sq ft
Building area
276,599 sq ft

Lot facts come from NYC Department of City Planning, Primary Land Use Tax Lot Output (PLUTO) (64uk-42ks), accessed Sep 13, 2026. They describe the tax lot, not this filing.

Violation record

Are there open violations here?

The Department of Buildings has 7 open notices on record for this building, out of 107 notices on file; the most recent was issued Jan 29, 2026.

  • Landmark

    Issued Jan 29, 2026

  • Construction

    Issued Aug 1, 2025 — FAILURE TO MAINTAIN BUILDING IN A CODE COMPLIANT MANNER.AS NOTED I OBS ERVED ON EXP1,3,&4 ERODED AND SPALLING MASONRY AT MULTIPLE LOCATIONS O N SEVERAL FLOORS.REMEDY:REPAIR AND/OR REPLACE ALL DAMAGED,DEFECTIVE MA SONRY

  • Construction

    Issued Aug 1, 2025 — EWO DUE TO IMMEDIATLY HAZARD CONDITIONS ON EXP 1,3,4. OBSERVD SPALLIN, ERODING MASONRY @ MULTIPLE LOCATION & FLOORS. UNSAFE FISP FILING ON 8/23/24 PER PE/RA & INADEQUATE/INCOMPLETE SAFETY MEASUREOBSERVD ON 8/1/25. REMEDY:TAKE & PROVIDE SAFETY MEASURES TO SECURE THE PUBLIC SAFETY ON EXP 1,3 & 4 ELEV EAST, NORTH & WEST INSTALL SIDEWALK SHED

  • 4 further open notices are on file. Open the source dataset for the full list.

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 13, 2026.

Recorded timeline

Dates published by the Department of Buildings.

  1. Application filed

    DOB received filing M01240558-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

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
M01240558-I1
BBL
1000907503
Review type
Standard Plan Examination
Existing stories
47
Proposed stories
47
Existing dwelling units
305
Proposed dwelling units
305
General construction