Cost to Build a 640-Square-Foot Accessory Dwelling in Berkeley

Patty, a homeowner in Berkeley, came to New Avenue looking to add an accessory dwelling unit to her property. She needed an ADU with two bedrooms, a bathroom, a living room, and a kitchen. A New Avenue design professional worked with her to create the ideal design for her new ADU.

This beautiful design is incredibly versatile. Patty can rent it out for $3,300 or more per month, or she can use it as extra space for herself or a guest house for her loved ones.

The total cost of this project, including design, permitting, and construction, was $323,663.05 at the time of construction. In 2021, this project would cost around $425,000.

To get your project started, contact us to schedule a free call. We’ll answer all your questions and introduce the design/build team that’s perfect to make your home everything you want it to be.