NYC DOB record · M01438540-S1

121 Prince Street

121 Prince Street, Manhattan, NY 10012

Alteration filing in Soho-Little Italy-Hudson 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. What every status means

ApprovedAlteration filing

NYC Department of Buildings · w9ak-ipjd · accessed Oct 3, 2026 · Verify the source row

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NYC DOB RECORD · M01438540-S1

121 Prince Street

Manhattan, NY 10012

Alteration filing · status dated Oct 1, 2026

Current record
Approved
Proposed scale
6 stories
Dwelling units
16
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 M01438540-S1 as a alteration filing at 121 Prince Street, Manhattan, NY 10012. Its latest published status category is Approved, dated Oct 1, 2026. The filing records 6 proposed stories and 16 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
Oct 1, 2026
Proposed scale
6 proposed stories and 16 proposed dwelling units
The building, not the filingopen housing violations, what it sold for, apartment sizes and every filing at BIN 1077777Applicant of recordSee the 93 filings that name A Tech Engineering NYC, PLLC.
FiledAug 11, 2026
Current recordApproved
Proposed scale6 stories
Recorded cost$66,000

What the filing says

A public-record reading of the proposed work.

Application is filed for the installation of (2) air handlers, (2) heat pumps, and related mechanical ductwork for existing apartment on the second floor. no change to use egress or occupancy. all work per plans submitted 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 6-story elevator apartment building built in 1890, with 16 homes, on a 9,453 sq ft lot.

Built
1890
Last altered
1987
Floors
6
Residential units
16
Building type
Elevator apartment building
Land use
Elevator apartments
Zoning district
M1-5/R7X
Lot area
9,453 sq ft
Building area
49,170 sq ft
Historic district
SoHo-Cast Iron Historic District

Lot facts come from NYC Department of City Planning, Primary Land Use Tax Lot Output (PLUTO) (64uk-42ks), accessed Oct 3, 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 19 notices on file; the most recent was issued Jan 6, 1998.

  • Local law 10/81 -

    Issued Jan 6, 1998

  • Local law 10/81 -

    Issued Apr 25, 1991 — 1

Open means the agency has not recorded a resolution, which is not the same as the problem still existing. What a violation is, and what it is not. From NYC Department of Buildings, DOB Violations (3h2n-5cm9), accessed Oct 3, 2026.

Recorded timeline

Dates published by the Department of Buildings.

  1. Application filed

    DOB received filing M01438540-S1.

    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 21 days of being filed and a quarter take longer than 4 months, measured across 74,561 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
M01438540-S1
BBL
1005140037
Review type
Standard Plan Examination
Existing stories
6
Proposed stories
6
Existing dwelling units
16
Proposed dwelling units
16