ADU Builder in Sunnyvale, CA

A detached ADU in Palo Alto typically runs $180,000 to $400,000+ depending on size and finish level. Garage conversions and JADUs cost less, usually starting around $65,000 to $95,000. We give a firm, itemized quote after a site visit — text us for a free consultation.

California law requires cities to approve or deny complete ADU applications within 60 days. In practice, well-prepared applications in Palo Alto typically move through in 2 to 4 months including plan-check correction rounds. We prepare and manage the full permit package.

We build detached backyard ADUs, garage conversion ADUs, Junior ADUs (JADUs), attached ADU additions, and prefab/modular ADU installations, plus offer standalone architectural design and permitting services.

Yes. Under California and Palo Alto ADU rules a completed ADU can generally be rented long-term. Short-term rental rules vary by city — we can walk you through the current local restrictions for your property.

We serve Palo Alto and the wider Peninsula and South Bay including Mountain View, Los Altos, Sunnyvale, Cupertino, Santa Clara, San Jose, Saratoga, Campbell, Los Gatos, Milpitas, Morgan Hill, and Gilroy.

Yes. We work as your general contractor for the full design-build process — architectural plans, structural engineering, City of Palo Alto permitting, and construction through final inspection — one team, one point of contact.