newyorkdailyStreet Futures
SearchExplore New York

NYC DOB record · B00731439-I1

491 First Street

491 First Street, Brooklyn, NY 11215

Alteration filing in Park Slope, Brooklyn. 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.

ApprovedAlteration filing

NYC Department of Buildings · w9ak-ipjd · accessed Sep 4, 2026 · Verify the source row

Open full map
491 First Street record graphic showing the DOB filing status and stated proposal scale
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 B00731439-I1 as a alteration filing at 491 First Street, Brooklyn, NY 11215. Its latest published status category is Approved, dated Sep 2, 2026. The filing records 4 proposed stories and 2 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
Sep 2, 2026
Proposed scale
4 proposed stories and 2 proposed dwelling units
FiledSep 13, 2022
Current recordApproved
Proposed scale4 stories
Recorded cost$119,000

What the filing says

A public-record reading of the proposed work.

Renovation of basement floor and rear one story enlargement in basement level. no chage to 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 3-story two-family home built in 1889, on a 1,800 sq ft lot.

Built
1889
Floors
3
Residential units
2
Building type
Two-family home
Land use
One and two family homes
Zoning district
R6B
Lot area
1,800 sq ft
Building area
2,516 sq ft
Historic district
Park Slope Historic District

Lot facts come from NYC Department of City Planning, Primary Land Use Tax Lot Output (PLUTO) (64uk-42ks), accessed Sep 4, 2026. They describe the tax lot, not this filing.

Violation record

Are there open violations here?

No open violations are recorded for this building.

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 4, 2026.

Recorded timeline

Dates published by the Department of Buildings.

  1. Application filed

    DOB received filing B00731439-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

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
B00731439-I1
BIN
3025090
BBL
3010740053
Review type
Standard Plan Examination
Existing stories
4
Proposed stories
4
Existing dwelling units
2
Proposed dwelling units
2
General constructionStructural workFoundation workEarthwork

Nearby records

Other verified filings in this part of the city.