Compare ADU zoning rules across 3 New York cities. Average ADU score: 4.7/10.
| City | Max Size | Setbacks | Permit Fees | Build Cost | 1BR Rent | Score |
|---|---|---|---|---|---|---|
| Buffalo | 1,000 sq ft gross floor area; a detached unit must also be shorter and smaller-footprint than the principal building (Green Code UDO 6.1.2.B) | 15 feet | $2,000-$3,500 | $110,000-$220,000 | $1,100-$1,500/mo | 7/10 |
| New York City | Up to 800 sq ft (and no more than 33% of the required rear yard) where permitted under City of Yes; not allowed in historic districts or R1A/R2A/R3A zones outside the Greater Transit Zone | N/A | $5,000-$10,000 | $150,000-$300,000 | $2,200-$3,200/mo | 5/10 |
| Rochester | Not applicable yet - the pending Zoning Alignment Project code would newly allow ADUs (by special permit in low-density zones); no adopted dimensional standards exist | 15 feet | $1,900-$3,300 | $105,000-$210,000 | $1,050-$1,450/mo | 2/10 |
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