What Are You Allowed to Build at 15 Mathewson St, Johnston, RI, 02919?

This lot does not meet the requirements for a Detached ADU. A variance may be requested through your local zoning authority

This property meets the requirements for an Internal ADU of up to 919 sq ft allowed By Right, or possibly more by Special Permit.

The existing home is allowed as a legally nonconforming structure. However, the lot does not meet current zoning requirements for new Single-Family construction. A variance or other zoning relief may be requested.

We estimate you can expand this property under current zoning rules. We weren't able to identify a specific size limit, but an addition may be possible horizontally, vertically, or both, depending on design and permitting.