At ADU Collective, our goal is to streamline the process while considering the unique needs of each project. With extensive experience in conversions, additions and new construction, we have permitted a multitude of ADU's throughout the Greater Bay Area.
Depending on your specific needs, and whether your ADU will include a garage conversion, addition, or new construction, costs will vary. We find that most ADUs will fall somewhere in the range of $170,000 to $300,000. You can see a breakdown of example project costs in this presentation or visit this website created by San Mateo County that is an easy to use ADU calculator.