NYC DOB record · M01260255-S1

495 Amsterdam Avenue

495 Amsterdam Avenue, Manhattan, NY 10024

Alteration filing in Upper West Side (Central), 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 Nov 6, 2026 · Verify the source row

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NYC DOB RECORD · M01260255-S1

495 Amsterdam Avenue

Manhattan, NY 10024

Alteration filing · status dated Nov 4, 2026

Current record
Approved
Proposed scale
5 stories
Dwelling units
9
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 M01260255-S1 as a alteration filing at 495 Amsterdam Avenue, Manhattan, NY 10024. Its latest published status category is Approved, dated Nov 4, 2026. The filing records 5 proposed stories and 9 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
Nov 4, 2026
Proposed scale
5 proposed stories and 9 proposed dwelling units
The building, not the filingopen housing violations, what it sold for, the owner of record and every filing at BIN 1032123Applicant of recordSee the 189 filings that name Tsf Engineering, PC
FiledJul 28, 2025
Current recordApproved
Proposed scale5 stories
Recorded cost$150,000

What the filing says

A public-record reading of the proposed work.

Application being filed for the installation of new packaged AC Unit, exhaust fan, and ducts as per plans filed wherewith. No change in use, egress, or occupancy.

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 walk-up apartment building built in 1891, with 9 homes, on a 2,468 sq ft lot.

Built
1891
Floors
5
Residential units
9
Building type
Walk-up apartment building
Land use
Mixed residential and commercial
Zoning district
C2-7A
Lot area
2,468 sq ft
Building area
9,975 sq ft
Historic district
Upper West Side / Central Park West Historic District

Lot facts come from NYC Department of City Planning, Primary Land Use Tax Lot Output (PLUTO) (64uk-42ks), accessed Nov 6, 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 35 notices on file; the most recent was issued Nov 14, 2025.

  • Low pressure boiler

    Issued Nov 14, 2025 — VIOLATION ISSUED-FAILURE TO FILE 2024 EXTERNAL LOW PRESSURE INSPECTION

  • Landmark

    Issued Jul 15, 2025

  • Landmark

    Issued Oct 18, 2023

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

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 Nov 5, 2026.

Recorded timeline

Dates published by the Department of Buildings.

  1. Application filed

    DOB received filing M01260255-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 22 days of being filed and a quarter take longer than 4 months, measured across 92,577 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
M01260255-S1
BBL
1012140061
Review type
Professional Certification
Existing stories
5
Proposed stories
5
Existing dwelling units
9
Proposed dwelling units
9