NYC DOB record · X01289174-P2

4277 Katonah Avenue

4277 Katonah Avenue, Bronx, NY 10470

Alteration filing in Wakefield-Woodlawn, Bronx. 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 1, 2026 · Verify the source row

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NYC DOB RECORD · X01289174-P2

4277 Katonah Avenue

Bronx, NY 10470

Alteration filing · status dated Sep 29, 2026

Current record
Approved
Proposed scale
Not stated
Dwelling units
1
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 X01289174-P2 as a alteration filing at 4277 Katonah Avenue, Bronx, NY 10470. Its latest published status category is Approved, dated Sep 29, 2026. The filing records 1 proposed dwelling unit.

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 29, 2026
Proposed scale
1 proposed dwelling unit
The building, not the filingopen housing violations and every filing at BIN 2019107Applicant of recordSee the 9 filings that name Christopher Warnick Architecture
FiledSep 28, 2026
Current recordApproved
Proposed scale1 units
Recorded cost$6,000

What the filing says

A public-record reading of the proposed work.

Replace existing boiler with Navien boiler system. No change of use, egress or occupancy under this application

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 mainly residential with some commercial built in 1930, with 4 homes, on a 2,125 sq ft lot.

Built
1930
Floors
3
Residential units
4
Building type
Mainly residential with some commercial
Land use
Mixed residential and commercial
Zoning district
R5B
Lot area
2,125 sq ft
Building area
3,780 sq ft

Lot facts come from NYC Department of City Planning, Primary Land Use Tax Lot Output (PLUTO) (64uk-42ks), accessed Oct 1, 2026. They describe the tax lot, not this filing.

Violation record

Are there open violations here?

The Department of Buildings has 1 open notice on record for this building, out of 8 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

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 1, 2026.

Recorded timeline

Dates published by the Department of Buildings.

  1. Application filed

    DOB received filing X01289174-P2.

    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 21 days of being filed and a quarter take longer than 4 months, measured across 73,707 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
X01289174-P2
BBL
2033760058
Review type
Professional Certification
Existing stories
Empty in the source
Proposed stories
Empty in the source
Existing dwelling units
1
Proposed dwelling units
1