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~6,100 eligible properties in The Bronx. The Bronx offers affordable entry into ADU ownership with rising rents and increasing demand, particularly in transit-accessible neighborhoods.
~51,000
1-2 Family Homes
~6,100
Eligible Properties
R3 / R4
Top Zones
2,000–3,000 sq ft
Avg Lot Size
$1,400–$2,000/mo
Est. ADU Rent
$520K
Median Home Value
Under NYC Local Laws 126 & 127 (City of Yes for Housing Opportunity), homeowners in eligible zoning districts can build ADUs on their property.
The right ADU type depends on your lot, existing structures, and budget. Here are the most common options for The Bronx homeowners.
The Bronx's brick two-family homes and colonials often feature spacious basements. Basement conversions are the most popular ADU type here due to lower cost and existing structure.
Detached garages in neighborhoods like Throggs Neck, Country Club, and Pelham Bay offer conversion opportunities. Many are oversized and well-suited for studio or 1-bedroom layouts.
Eastern Bronx neighborhoods have lots in the 2,000–3,000 sq ft range that can accommodate a compact backyard cottage, though space is tighter than Queens or Staten Island.
Construction costs vary by ADU type, size, site conditions, and finishes. These ranges reflect typical The Bronx projects.
| ADU Type | Estimated Cost | Timeline |
|---|---|---|
| Basement Conversion | $100,000–$220,000 | 3–6 months |
| Garage Conversion | $140,000–$270,000 | 4–7 months |
| Detached Backyard ADU | $210,000–$420,000 | 6–12 months |
Estimates include design, permitting, construction, and utility connections. Using HPD pre-approved plans can save $15,000–$40,000 on design costs.
ADUs can generate significant monthly income to offset your mortgage, property taxes, and construction costs.
$1,400–$2,000/mo
Estimated Monthly Rent
$520K
Median Home Value
20–30%
Typical Property Value Increase
These The Bronx neighborhoods have the highest concentration of eligible 1-2 family homes in ADU-friendly zoning districts.
Country Club
Pelham Bay
Throggs Neck
Morris Park
Riverdale
City Island
Eastchester
Wakefield
NYC offers grants and low-interest loans to help homeowners fund ADU construction.
Up to $395,000 in combined loans and grants (including up to $175,000 as a grant) for eligible The Bronx homeowners. Must be owner-occupied, below 165% AMI, and commit to a 10-year rental period.
The Bronx has roughly 6,100 eligible properties, concentrated in the eastern and northern neighborhoods with R3/R4 zoning. Areas like Pelham Bay, Throggs Neck, Morris Park, and Riverdale have the highest concentrations. Use our eligibility checker for your address.
Basement conversions in the Bronx typically cost $100,000–$220,000, garage conversions $140,000–$270,000, and new detached ADUs $210,000–$420,000. Costs are moderate compared to Brooklyn and Manhattan, with good access to contractors experienced in residential conversions.
A 1-bedroom ADU in the Bronx typically rents for $1,400–$2,000/month depending on neighborhood. Areas with better transit (near the 6 train or Metro-North) command higher rents. At $1,700/month, you'd earn $20,400/year in gross rental income.
The eastern Bronx — Pelham Bay, Throggs Neck, Country Club, and City Island — has the highest concentration of eligible 1-2 family homes. Riverdale and Fieldston in the northwest also have eligible properties on larger lots. Morris Park and Eastchester round out the top areas.
Dive deeper into ADU eligibility, costs, and rental potential for specific The Bronx neighborhoods.
Check if your The Bronx property qualifies in under 2 minutes, or explore pre-approved ADU plans that fit your lot.