Every quote below includes architectural design, full permit filing, NFRC-certified windows, HCD-approved modules, and California-licensed construction. No hidden change orders.
Pick a footprint that fits your lot and your goal. Every plan is turnkey: design → permits → materials → construction → keys.
A refined independent space for singles, couples — or a premium home office.
Two bedrooms, one bath — the ideal accessory dwelling, built for long-term living or the strongest rental returns.
Three bedrooms, two baths. Maximizes rental yield and property appreciation on generous lots.
Not every project is a full ADU. When you need a single premium window system, a kitchen renovation, or just a permit package — ZZA can do that too.
NFRC-certified thermal-break aluminum & German uPVC systems. 28 frame / glazing combinations. Supply-only or supply-and-install.
Kitchen, bath, full-house renovations and second-story add-ons. Same designers, same certified supply chain.
Design, structural set, Title 24 report, and full CA permit filing — without construction. For owners working with their own builder.
Architectural design, structural engineering, Title 24 report, full CA permit filing, HCD-approved modules or stick-built frame, NFRC-certified windows and doors, all interior finishes in the plan's finish schedule, licensed California construction, and final inspection. Site prep and utility hookups beyond 40 feet are quoted separately.
Nine months from signed design contract to keys is our standard timeline: roughly 8 weeks of design & permits, 10 weeks of factory build, and 14 weeks of on-site assembly & finish. Complex sites add 2–4 weeks.
Yes. Full CA permit filing and back-and-forth with the local building department is included in every ADU plan and available as a stand-alone package. Our single-pass inspection record across 220+ permitted projects is one of the reasons clients choose ZZA.
Use the three-minute assessment to generate a preliminary feasibility report. If your lot is outside our standard parameters, we'll schedule a site visit and provide a custom quote.
Ten-year structural warranty on all ADU work; two-year finish warranty on interior surfaces; manufacturer warranties pass-through on windows, doors, HVAC and appliances.
