Looking for adu construction in Cupertino? ODL Construction is a licensed Bay Area general contractor serving Cupertino and the surrounding Silicon Valley — from Monta Vista, Rancho Rinconada, Garden Gate and beyond. Detached, attached, and garage-conversion ADUs — rental income and family space, fully permitted.
Accessory Dwelling Units are the single best way to add value, income, or multigenerational space to a Bay Area property — and California's pro-ADU laws have made them faster to approve than almost any other project. A well-built ADU can rent for thousands a month or keep family close with independence.
For Cupertino specifically, it comes down to local realities: In Cupertino, the Fremont Union school premium means additions that add bedrooms often return more than a move — but the city's R1 ordinance and second-story design review shape what's possible. Cupertino's R1 zoning includes second-story setback and privacy-protection standards plus design review for two-story projects — we design to those rules so additions clear review. We design and permit your adu construction around exactly those conditions.
ADU Construction in Cupertino — what we handle
- Detached new-construction ADUs
- Attached ADUs
- Garage and basement conversions
- Junior ADUs (JADUs)
- Feasibility, lot, and setback analysis
- California ADU law and local ordinance compliance
- Utility connections and Title 24 energy compliance
- Full permitting and inspections
ADU Construction cost
Typical Bay Area ranges, not a quote. ADU cost is driven most by type (conversion vs. detached), size, site access, and utility connections. We give you a fixed proposal after a free feasibility visit.
Timeline
Garage conversions often finish in 3–4 months; detached ADUs typically run 6–9 months including the 60-day permit review.
Cupertino permits
Cupertino's R1 zoning includes second-story setback and privacy-protection standards plus design review for two-story projects — we design to those rules so additions clear review.
