San Francisco-based startup Cosmic is selling 100 prefab ADUs starting at $279,000 each in hopes of using the profit and a recent funding round to improve its manufacturing process and decrease the cost of its tiny homes.
Jakota Rivas, right, in front of her ADU in Napa, California. She received a $40,000 state grant. Ryan O'Connell, left, is founder of How to ADU, a ADU advocacy company.