Across California, families are increasingly turning to ADUs to solve today’s housing challenges, whether it’s caring for an aging parent, giving adult children a more affordable start, or creating supplemental rental income.

Perpetual Homes is making that process simple. Founded in 2019 by Katherine Anderson—a Bay Area resident with more than 40 years of residential development expertise— the family-run, Danville-based company has quickly grown into California’s largest private ADU builder. Known for quality craftsmanship, smart design, and efficient delivery, Perpetual Homes is helping families like Larry’s stay connected while building long-term value in their properties.

“I’ve seen how difficult it has become for families to stay rooted in California’s housing market,” Anderson says. “An ADU gives them options—whether that means welcoming a parent home, creating space for the next generation, or securing financial flexibility. It’s about making housing work for people again.”