Accessory Dwelling Units — also known as ADUs or “in-law suites” — are quickly gaining popularity across Rhode Island as homeowners seek more flexibility and functionality from their property. But how do you know if building an ADU is the right move?

First, let’s define what an ADU is. It’s a secondary, self-contained living unit located on the same lot as your primary residence. It could be a converted garage, a detached tiny home in the backyard, or a basement apartment with its own entrance. The appeal is clear: rental income, space for extended family, or a private office — all without needing to move.

So, is your property eligible?
Rhode Island towns like Providence, Barrington, and East Greenwich each have their own zoning laws. Some areas allow detached ADUs by right, others require special permits. You’ll also need to account for lot coverage, setbacks, access, and utility tie-ins.

Is it cost-effective?
When done right, yes. ADUs typically cost less than traditional home additions and often increase property value — especially if they’re fully permitted and separate from the main home.

Whether you’re planning a cozy backyard cottage or a fully livable rental space, it’s essential to work with a contractor familiar with local rules and small-space construction.