Detached ADU
A fully independent structure in your backyard. Ideal for rental income, multigenerational living, or a private home office.
Learn moreWe design, permit, and construct detached ADUs, attached units, and garage conversions across California. One team, one contract, transparent pricing.
From compact studios to two-bedroom backyard cottages, we handle every ADU category permitted under California law.
A fully independent structure in your backyard. Ideal for rental income, multigenerational living, or a private home office.
Learn moreAn extension of your primary residence with its own entrance, kitchen, and bathroom. Cost-effective and faster to permit.
Learn moreTransform an unused garage into a legal dwelling unit. The most affordable path to an ADU on your property.
Learn moreBuild upward instead of outward. A second-story unit above your existing garage maximizes lot space.
Learn moreA compact unit up to 500 sq ft within your home. Simplified permitting and lower construction costs.
Learn moreMixed-use properties can add residential units. We handle zoning analysis and commercial-to-residential conversions.
Learn moreA clear, phased process with a dedicated project manager at every stage.
We review your lot, zoning, and utility connections to determine what you can build. You receive a written feasibility report within 5 business days.
Our in-house designers create floor plans, elevations, and structural drawings tailored to your budget and lifestyle. Revisions are included until you approve.
We submit to your city or county, respond to plan-check comments, and coordinate with utility companies. Most permits are issued within 60–90 days.
Licensed crews build to plan with weekly progress updates. We schedule all inspections and manage subcontractors so you don't have to.
We conduct a joint inspection, deliver warranty documentation, and hand over keys. Your ADU is ready to rent, host family, or enjoy.
We built a 600 sq ft detached ADU for my mother. The team handled every permit detail and finished two weeks ahead of schedule. She has her own space, and we have our privacy back.
Our garage conversion became a rental that covers half our mortgage. The pricing was transparent from day one — no surprise change orders.
We interviewed four contractors. ADU Construction was the only one that explained the zoning constraints clearly and gave us a realistic timeline.
Talk to a project specialist about your property. No obligation, no pressure — just clear answers about what you can build and what it will cost.