Last updated: September 24, 2026
What affects the price
Building an ADU involves several moving parts that shape your total investment. The final figure depends heavily on whether you choose a prefab unit or a custom build from the ground up. Site conditions are another major factor; if your property requires extensive grading, utility trenching, or foundation work, costs will climb. You also have to consider your choice of finishes, like high-end appliances or custom cabinetry. Navigating local permit fees and impact assessments also adds to the total.
About this service
A 24-hour ADU service refers to a rapid-response planning process. When you have a time-sensitive project, we can often schedule a consultation and initial site feasibility check within one business day. You need this if you are ready to start immediately and want to avoid the typical delays of waiting weeks just to speak with a professional. We get the ball rolling so your project stays on track. Exact pricing confirmed free on the call.
Frequently asked in Santa Maria
What's involved in ADU construction in Santa Maria, California?
What are the costs associated with building an accessory dwelling unit in Santa Maria?
Where can I find an ADU builder in Santa Maria?
What are accessory dwelling unit homes, and what are their benefits?
What's the process for getting an ADU permit in Santa Maria?
Are affordable accessory dwelling units achievable in Santa Maria?
What is a detached accessory dwelling unit, and is it suitable for Santa Maria?
Also serving nearby: San Buenaventura Ventura · Bakersfield · Oxnard · Thousand Oaks · Simi Valley
More on this: HUD ADU resources — ADU policy and financing research.
Service area details
Serving all of Santa Maria — population 109,987; about 4,821 residents per square mile across 22.8 sq mi. ZIP codes covered include 93454, 93455, 93456, 93457, 93458.
Neighborhoods served in Santa Maria: Old Town Santa Maria, West Main, Town Center, Blosser Lane, Miller Street — and every surrounding area.
Areas we serve
Browse by state, then city.
California (3)
All of California · Costa Mesa · Jurupa Valley · Santa Maria
