ADU Options for Queens Homeowners: Basement, Garage and Backyard Cottages

Queens is quickly becoming one of the most active boroughs for ADU development in New York City. And if you're a homeowner here, there's a good chance your property has more potential than you think.

Since the City of Yes Housing Plan passed in late 2024, Queens homeowners can legally add an ADU — whether that's a basement apartment, a garage conversion, attic conversion, or a backyard cottage. Queens leads the city in ADU interest, and it's easy to see why: the borough has a huge number of single- and two-family homes with the right lot sizes and layouts to make it work.

The Three Main Options for Queens Homeowners

Basement ADUs are one of the most popular choices in Queens. Many homes here already have finished or partially finished basements — converting one into a legal unit can be surprisingly straightforward if the space meets height and safety requirements. The ceiling needs to be at least 7 feet high, and you'll need proper egress, ventilation, and fire separation from the main house. Basement ADUs are not allowed in flood-risk areas, so that's something to check early.

Garage conversions are another strong option. If your garage sits detached from your house, converting it into a living space is often easier (and cheaper) than building from scratch. Under the new rules, garage conversions aren't considered "backyard ADUs" for zoning purposes, which means they face fewer location restrictions.

Backyard cottages — detached, freestanding units — are also possible on qualifying Queens lots. These offer the most privacy and independence for whoever lives there, making them a great option for rental income or housing a family member.

Why Queens is Leading the Pack

Queens has the most diverse housing stock of any borough, and a large percentage of properties are single- and two-family homes — exactly the type that qualifies for ADUs. Areas like Flushing, Richmond Hill, and Jamaica have seen especially strong interest from homeowners exploring their options.

Queens is also home to many multigenerational families. For a lot of homeowners here, the appeal of an ADU isn't just rental income — it's keeping loved ones close while giving everyone their own space.

What You Need to Know

  • One ADU per property, up to 800 square feet

  • Owner must live on the property

  • Separate entrance required

  • Sprinklers required for detached and basement ADUs

  • No extra parking space needed

Want to Know What’s Possible on Your Queens Property?

We offer free ADU assessments — just give us your address and we'll map out your options.

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ADUs in Flood Zones: What NYC Homeowners Need to Know Before They Build

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Thinking About Building an ADU in NYC? Here’s What to Know First