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99 of 515 properties in Brownsville are eligible for an accessory dwelling unit. 19.2% eligibility rate based on real NYC property data.
515
Total Properties
99
ADU Eligible
19.2%
Eligibility Rate
R5B / R5
Top Zones
1,986 ft²
Avg Lot Size
$2K–$3K
Est. Monthly Rent
Under NYC Local Laws 126 & 127 (City of Yes for Housing Opportunity), homeowners in eligible zoning districts can add an accessory dwelling unit to their property.
19.2% of Brownsville properties qualify
Based on property data, here are the ADU types that Brownsville homeowners can build.
Construct a standalone cottage in the rear yard. Up to 800 sq ft under NYC rules. Requires sufficient lot area and setbacks.
Convert existing basement or interior space into a self-contained dwelling unit with separate entrance, kitchen, bathroom, and sleeping area.
Build a new ADU attached to the existing home -- such as a side or rear addition. Shares at least one wall with the primary structure.
Estimated costs and rental income based on real data from eligible properties in Brownsville.
$150,000 – $350,000
Est. Construction Cost
$2,200 – $3,000/mo
Est. Monthly Rent
$31,200/yr
Est. Annual Income
Estimates are based on aggregate data from eligible properties in Brownsville. Actual costs vary by ADU type, size, site conditions, and finishes. Using HPD pre-approved plans can save $15,000–$40,000 on design costs.
Up to $395,000 in combined loans and grants (including up to $175,000 as a grant) for eligible Brownsville homeowners. Must be owner-occupied, below 165% AMI, and commit to a 10-year rental period.
Based on our analysis of 515 properties in Brownsville, Brooklyn, 99 are eligible for an ADU under NYC Local Laws 126 & 127. That is a 19.2% eligibility rate. The most common zoning districts are R5B, R5, R4.
Properties in Brownsville are eligible for Detached Backyard ADU, Basement/Interior Conversion, Attached ADU. The best option depends on your lot size (average in Brownsville is 1,986 sq ft), existing structures, and budget. Use our eligibility checker for a personalized assessment.
Based on eligible properties in Brownsville, estimated ADU construction costs range from $150,000 to $350,000. Actual costs depend on the ADU type, size, site conditions, and finishes. Using HPD pre-approved plans can save $15,000-$40,000 on design costs.
ADUs in Brownsville, Brooklyn can generate an estimated $2,200 to $3,000 per month in rental income. At $2,600 per month, that is approximately $31,200 per year in gross rental income.
Yes. The Plus One ADU Program offers up to $395,000 in combined loans and grants (including up to $175,000 as a grant) for eligible homeowners in Brownsville and all NYC neighborhoods. You must be owner-occupied, below 165% AMI, and commit to a 10-year rental period. Applications are open until June 12, 2026.
Explore ADU eligibility in areas near Brownsville.
Ridgewood
Queens
2,863
Properties
1,164
Eligible
40.7%
Rate
East New York
Brooklyn
6,434
Properties
2,439
Eligible
37.9%
Rate
Crown Heights
Brooklyn
1,153
Properties
523
Eligible
45.4%
Rate
Cypress Hills
Brooklyn
2,444
Properties
1,014
Eligible
41.5%
Rate
East Flatbush
Brooklyn
9,591
Properties
5,090
Eligible
53.1%
Rate
Glendale
Queens
7,325
Properties
3,200
Eligible
43.7%
Rate
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