It depends on the borough, the size and the unit. As a reference, StreetEasy reported a May 2026 median asking rent of $3,895 in Brooklyn, $3,350 in Queens and $4,199 citywide. Those medians cover all apartment types; an ADU of up to 800 sq ft in a residential neighborhood may rent above or below them.
What are current rents?
| Area | Median asking rent, May 2026 |
|---|---|
| Citywide | $4,199 |
| Brooklyn | $3,895 |
| Queens | $3,350 |
| The Bronx and Staten Island | Not reported in that StreetEasy update |
Medians mix luxury new buildings with older walk-ups, so they are a reference point, not a forecast for your unit.
What sets an ADU's rent?
- Type. A detached backyard unit offers more privacy than a basement or attic.
- Light and height. Basement units must meet 7-foot ceilings but still compete on light.
- Location. The walk to the subway or the express bus.
- Size. Up to 800 sq ft, usually a studio or one-bedroom.
Are there rental rules?
- DOB says ADUs can be rented long-term or house family members.
- The owner must live on the lot at initial occupancy.
- If you use HPD's Plus One forgivable loan option, the ADU's rent is restricted at 100 percent of Area Median Income, according to HPD's FAQ.
Will rent pay for it? It depends on your financing, taxes and costs. A new unit can raise your property tax bill, and HPD lists a possible tax increase among ADU soft costs. Your written, itemized quote gives you the build cost to take to a lender or tax adviser. We do not make income promises.
Sources, as of October 2026:
- StreetEasy, May 2026 NYC rental market report.
- NYC DOB announcement, September 30, 2025.
- NYC HPD, Plus One ADU FAQ and ADU guidebook.