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NYC DOB record · X00994041-I1

850 Longwood Avenue

850 Longwood Avenue, Bronx, NY 10459

Alteration filing in Longwood, Bronx. 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 15, 2026 · Verify the source row

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NYC DOB RECORD · X00994041-I1

850 Longwood Avenue

Bronx, NY 10459

Alteration filing · status dated Oct 13, 2026

Current record
Approved
Proposed scale
Not stated
Dwelling units
39
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 X00994041-I1 as a alteration filing at 850 Longwood Avenue, Bronx, NY 10459. Its latest published status category is Approved, dated Oct 13, 2026. The filing records 39 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 13, 2026
Proposed scale
39 proposed dwelling units
Applicant of recordSee the 1866 filings that name Paul Perdek, PROF. ENG. PLLC
FiledMar 6, 2024
Current recordApproved
Proposed scale39 units
Recorded cost$1

What the filing says

A public-record reading of the proposed work.

Installation of temporary sidewalk shed as per plans. 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 6-story elevator apartment building built in 1925, with 39 homes, on a 8,125 sq ft lot.

Built
1925
Last altered
1991
Floors
6
Residential units
39
Building type
Elevator apartment building
Land use
Mixed residential and commercial
Zoning district
R7-1
Lot area
8,125 sq ft
Building area
40,801 sq ft

Lot facts come from NYC Department of City Planning, Primary Land Use Tax Lot Output (PLUTO) (64uk-42ks), accessed Oct 15, 2026. They describe the tax lot, not this filing.

Recorded timeline

Dates published by the Department of Buildings.

  1. Application filed

    DOB received filing X00994041-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 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
X00994041-I1
BIN
2005169
BBL
2026880048
Review type
Professional Certification
Existing stories
Empty in the source
Proposed stories
Empty in the source
Existing dwelling units
39
Proposed dwelling units
39
Sidewalk shed

Where this record leads

The same building, the same street, the same practice.

Elsewhere on Longwood Avenue

Also filed by Paul Perdek, PROF. ENG. PLLC

Nearby records

Other verified filings in this part of the city.