Adu unit — Santa Maria, CA
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
An ADU unit is simply a secondary dwelling located on the same lot as a primary residence. You might look into an ADU if you need more space for a home office, a gym, or housing for extended family. Exact pricing confirmed free on the call.
Frequently asked in Santa Maria
What's involved in getting a prefabricated ADU in Santa Maria?
Can I get 24-hour ADU services in Santa Maria?
What ADU companies are available in Santa Maria?
How much does an ADU permit cost in Santa Maria?
What's the typical cost of an accessory dwelling unit in Santa Maria?
What services do ADU specialists offer in Santa Maria?
What is a modular accessory dwelling unit in Santa Maria?
A modular accessory dwelling unit in Santa Maria is constructed in sections in a factory and then transported to your site for assembly. This method can offer benefits like a faster build time and consistent quality control. It's an efficient way to create a durable ADU. We can help you find specialists familiar with modular ADUs in the Santa Maria area. Let's discuss this option.
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, Alice Street, The Bluffs, Broadway Corridor, Rosemary — and every surrounding area.
Areas we serve
Browse by state, then city.
California (3)
All of California · Costa Mesa · Jurupa Valley · Santa Maria