Detached ADUs
A curated directory of vetted builders specializing in standalone, ground-up accessory dwelling units separate from the main house. builders
Frequently Asked Questions
- How do I choose a builder for a detached adu project?
- Shortlist only contractors who are actively CSLB-licensed (Class B), bonded, and insured, with verifiable recent detached adu projects and real permitting experience. Our directory highlights each builder's specialties, license status, and CSLB number so you can compare confidently — then request an intro to a verified builder matched to your project.
- What should I expect from a detached adu builder?
- A qualified detached adu builder should provide a fully itemized fixed-price quote (with utility connections named as a line item), handle permitting for you, and collect no more than a $1,000 deposit up front — California's legal cap. Be wary of any "material reservation" or "lumber-lock" fee that pushes your up-front payment higher; that's a red flag for an illegal deposit.
- How long does a detached adu project take?
- Timelines vary by scope and city review, so be skeptical of anyone guaranteeing a fixed "60-day approval" — that statutory deadline applies only to a complete application and isn't a real-world build timeline. In Los Angeles, custom ADU permitting realistically runs about 3–6 months, with design-to-move-in around 8–14 months. A verified detached adu builder will give you an honest, project-specific schedule.