NYC DOB record · X01417912-I1

3950 Blackstone Avenue

3950 Blackstone Avenue, Bronx, NY 10471

Alteration filing in Riverdale-Spuyten Duyvil, 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 Sep 4, 2026 · Verify the source row

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NYC DOB RECORD · X01417912-I1

3950 Blackstone Avenue

Bronx, NY 10471

Alteration filing · status dated Sep 1, 2026

Current record
Approved
Proposed scale
7 stories
Dwelling units
120
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 X01417912-I1 as a alteration filing at 3950 Blackstone Avenue, Bronx, NY 10471. Its latest published status category is Approved, dated Sep 1, 2026. The filing records 7 proposed stories and 120 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 1, 2026
Proposed scale
7 proposed stories and 120 proposed dwelling units
The building, not the filingopen housing violations, what it sold for, the owner of record and every filing at BIN 2085805Applicant of recordSee the 12 filings that name Andrew Katz Engineering
FiledJun 17, 2026
Current recordApproved
Proposed scale7 stories
Recorded cost$20,000

What the filing says

A public-record reading of the proposed work.

Local stucco repair at balcony line in rear yard. Local stucco repair at bulkhead on roof. 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 1959, with 189 homes, on a 102,825 sq ft lot.

Built
1959
Floors
6
Residential units
189
Building type
Elevator apartment building
Land use
Mixed residential and commercial
Zoning district
R4
Lot area
102,825 sq ft
Building area
237,000 sq ft

Lot facts come from NYC Department of City Planning, Primary Land Use Tax Lot Output (PLUTO) (64uk-42ks), accessed Sep 25, 2026. They describe the tax lot, not this filing.

Violation record

Are there open violations here?

No open violations are recorded for this building. 83 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 Sep 25, 2026.

Recorded timeline

Dates published by the Department of Buildings.

  1. Application filed

    DOB received filing X01417912-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

For scale: half of DOB filings are permitted within 21 days of being filed and a quarter take longer than 4 months, measured across 70,325 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
X01417912-I1
BBL
2059090163
Review type
Standard Plan Examination
Existing stories
7
Proposed stories
7
Existing dwelling units
120
Proposed dwelling units
120
General construction