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5,090 of 9,591 properties in East Flatbush are eligible for an accessory dwelling unit. 53.1% eligibility rate based on real NYC property data.
9,591
Total Properties
5,090
ADU Eligible
53.1%
Eligibility Rate
R5 / R4
Top Zones
2,224 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.
53.1% of East Flatbush properties qualify
Based on property data, here are the ADU types that East Flatbush 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 East Flatbush.
$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 East Flatbush. 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 East Flatbush homeowners. Must be owner-occupied, below 165% AMI, and commit to a 10-year rental period.
Based on our analysis of 9,591 properties in East Flatbush, Brooklyn, 5,090 are eligible for an ADU under NYC Local Laws 126 & 127. That is a 53.1% eligibility rate. The most common zoning districts are R5, R4, R3-2.
Properties in East Flatbush are eligible for Detached Backyard ADU, Basement/Interior Conversion, Attached ADU. The best option depends on your lot size (average in East Flatbush is 2,224 sq ft), existing structures, and budget. Use our eligibility checker for a personalized assessment.
Based on eligible properties in East Flatbush, 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 East Flatbush, 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 East Flatbush 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 East Flatbush.
Flatlands
Brooklyn
8,273
Properties
2,535
Eligible
30.6%
Rate
Flatbush
Brooklyn
972
Properties
151
Eligible
15.5%
Rate
Prospect Lefferts Gardens
Brooklyn
362
Properties
294
Eligible
81.2%
Rate
Canarsie
Brooklyn
8,661
Properties
4,869
Eligible
56.2%
Rate
Crown Heights
Brooklyn
1,153
Properties
523
Eligible
45.4%
Rate
Marine Park
Brooklyn
5,435
Properties
2,180
Eligible
40.1%
Rate
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