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~11,500 eligible properties in Staten Island. Staten Island offers the largest lots and lowest construction costs in NYC, making it ideal for spacious detached ADUs with strong ROI.
~96,000
1-2 Family Homes
~11,500
Eligible Properties
R3 / R4
Top Zones
3,000–5,000 sq ft
Avg Lot Size
$1,500–$2,200/mo
Est. ADU Rent
$515K
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 Staten Island homeowners.
Staten Island's generous lot sizes (3,000–5,000 sq ft) make detached backyard cottages the most natural fit. Many properties have large rear yards with easy access for construction.
Oversized detached garages are common across Staten Island. Converting a 2-car garage into a 1-bedroom ADU is a cost-effective option that maximizes existing structures.
Many Staten Island homes have full walk-out basements, especially on sloped lots. These are ideal conversion candidates with natural light and separate entrance potential.
Construction costs vary by ADU type, size, site conditions, and finishes. These ranges reflect typical Staten Island projects.
| ADU Type | Estimated Cost | Timeline |
|---|---|---|
| Basement Conversion | $90,000–$200,000 | 3–6 months |
| Garage Conversion | $130,000–$260,000 | 4–7 months |
| Detached Backyard ADU | $200,000–$400,000 | 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.
$1,500–$2,200/mo
Estimated Monthly Rent
$515K
Median Home Value
20–30%
Typical Property Value Increase
These Staten Island neighborhoods have the highest concentration of eligible 1-2 family homes in ADU-friendly zoning districts.
New Dorp
Great Kills
Eltingville
Tottenville
Annadale
Huguenot
Travis
Westerleigh
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 Staten Island homeowners. Must be owner-occupied, below 165% AMI, and commit to a 10-year rental period.
Most 1-2 family homes in Staten Island's R3 and R4 zoning districts are eligible. Staten Island has approximately 11,500 eligible properties. The borough's larger lots and lower density make most properties good candidates. Use our eligibility checker for your specific address.
Staten Island generally has the lowest ADU construction costs in NYC. Basement conversions typically run $90,000–$200,000, garage conversions $130,000–$260,000, and new detached ADUs $200,000–$400,000. Lower labor costs and easier site access contribute to savings.
A 1-bedroom ADU on Staten Island typically rents for $1,500–$2,200/month. While rents are lower than Brooklyn or Queens, the lower construction costs mean your return on investment (ROI) can be equally competitive. At $1,800/month, you'd earn $21,600/year.
Yes — parts of Staten Island's south shore are in FEMA flood zones (especially after Hurricane Sandy). Properties in flood zones have additional requirements for ADUs, including elevation standards, flood-proofing, and potentially higher construction costs. Our eligibility checker flags flood zone properties automatically.
Dive deeper into ADU eligibility, costs, and rental potential for specific Staten Island neighborhoods.
Check if your Staten Island property qualifies in under 2 minutes, or explore pre-approved ADU plans that fit your lot.