NYC DOB record · M01100519-S1

170 East 121 Street

170 East 121 Street, Manhattan, NY 10035

Alteration filing in East Harlem (North), Manhattan. The latest DOB status is approved.

A plan examiner has approved the application. A permit still has to be issued before work can begin. What every status means

ApprovedAlteration filing

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

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NYC DOB RECORD · M01100519-S1

170 East 121 Street

Manhattan, NY 10035

Alteration filing · status dated Oct 26, 2026

Current record
Approved
Proposed scale
5 stories
Dwelling units
Not stated
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 M01100519-S1 as a alteration filing at 170 East 121 Street, Manhattan, NY 10035. Its latest published status category is Approved, dated Oct 26, 2026. The filing records 5 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
Oct 26, 2026
Proposed scale
5 proposed stories
The building, not the filingopen housing violations, the owner of record and every filing at BIN 1054382Applicant of recordSee the 96 filings that name Thornton Tomasetti
FiledFeb 26, 2025
Current recordApproved
Proposed scale5 stories
Recorded cost$280,000

What the filing says

A public-record reading of the proposed work.

New concrete slab on grade installation at courtyards/areaway. Stabilization of south masonry wall. Repair of brick arches. Repair/replace wood rafters. Masonry keystone repair. Stair tred connection repair. Roof railing/deck.

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 5-story other built in 1893, on a 10,092 sq ft lot.

Built
1893
Floors
5
Residential units
0
Building type
Other
Land use
Public facilities and institutions
Zoning district
R7B
Lot area
10,092 sq ft
Building area
40,368 sq ft

Lot facts come from NYC Department of City Planning, Primary Land Use Tax Lot Output (PLUTO) (64uk-42ks), accessed Oct 29, 2026. They describe the tax lot, not this filing.

Violation record

Are there open violations here?

No open violations are recorded for this building. 47 notices are on file, all with a recorded resolution.

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 28, 2026.

Recorded timeline

Dates published by the Department of Buildings.

  1. Application filed

    DOB received filing M01100519-S1.

    01
  2. Application approved

    The application reached an approved status in the DOB record.

    02
  3. Current status updated

    The latest recorded filing status is “Approved.”

    03

For scale: half of DOB filings are permitted within 22 days of being filed and a quarter take longer than 4 months, measured across 88,832 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
M01100519-S1
BBL
1017690045
Review type
Standard Plan Examination
Existing stories
5
Proposed stories
5
Existing dwelling units
0
Proposed dwelling units
0
Structural work