East Greenwich, RI ADU Laws

Number of Units Allowed:

• Only one ADU is permitted per property.

Building Size:

• The maximum size of an ADU is 1,000 square feet or 50% of the primary dwelling’s living area, whichever is smaller.

Building Height:

• The ADU must comply with the height restrictions set forth in the zoning ordinance, typically not exceeding the height of the primary dwelling.

Setback Requirements:

• ADUs must meet the same setback requirements as the primary dwelling. Additional considerations may apply if the property is near a floodplain or other environmentally sensitive areas.

Parking:

• One additional off-street parking space is required for the ADU.

Owner-Occupancy:

• The property owner must occupy either the primary residence or the ADU.

Rental Requirements:

• ADUs can be rented but must comply with local housing regulations. Short-term rentals (such as Airbnb) are generally prohibited to encourage long-term housing solutions.

Additional Requirements:

• The ADU must comply with all local building codes and health and safety regulations.
• A permit must be obtained, and the ADU must be recorded in the land records at the town hall.
• ADUs are subject to infrastructure requirements, such as adequate sewage and water systems, especially if the property relies on a septic system.