4300 Martha Avenue, The Bronx

An elevator apartment building on a 20,561 sq ft The Bronx lot on Martha Avenue, zoned R4A, built in 1942.

4300 Martha Avenue is an elevator apartment building in The Bronx, New York City (BBL 2033850060). The property is zoned R4A, on a 20,561 sq ft lot, with 6 floors and 82 residential units. It was built in 1942. The lot is not inside a FEMA Special Flood Hazard Area. NYC municipal records show 7 open building violations for this lot as of 2026-07-05.

Property facts

BBL	2033850060
Borough	The Bronx — Community District 12
Neighborhood	Wakefield-Woodlawn
ZIP code	10470
Zoning district	R4A
Building class	D1 — elevator apartment building (what’s a building class?)
Land use	03 — Multi-family elevator buildings
Lot area	20,561 sq ft
Floors	6
Residential units	82
Year built	1942
FAR	3.73 built · 1 max residential · 0 max commercial Learn: What is FAR?
Flood zone	Not in a FEMA Special Flood Hazard Area

Public records

4 open Department of Buildings violations
2 open ECB (OATH) violations — $2,530 in penalties due
1 open Housing Preservation & Development violation

Violation counts as of 2026-07-05.

Absence of a record means none on file in NYC municipal records — not a certification of compliance.

The complete dossier also covers:

Buildable floor area (residential & commercial)
Recorded ownership & last sale
Recorded mortgages & open debt stack
LL97 carbon exposure by compliance period
Flood coverage percentage & base flood elevation
Climate projections for this lot
Open permits & construction pipeline
Distress signal convergence
Air rights & transferable development rights
Comparable sales (Pro)

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Data: NYC municipal records (Departments of City Planning, Buildings, Finance) and FEMA. See our sources and methodology. Data as of 2026-07-11.