Accessory dwelling units adus — 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
ADUs are secondary homes on a single-family lot that provide independent living facilities. You might consider an ADU if you want to increase your property value or provide housing for family. These units are versatile and can be detached or attached to the main house. Exact pricing confirmed free on the call.
Frequently asked in Santa Maria
What's the permit cost for an accessory dwelling unit in Santa Maria?
Are prefabricated accessory dwelling units a good option for Santa Maria?
What are the costs to build an accessory dwelling unit in Santa Maria?
The costs to build an ADU in Santa Maria are influenced by factors like its size, the quality of materials chosen, and any site-specific preparation needed. For example, complex foundations or utility upgrades will affect the overall price. To get an accurate understanding of the cost for your specific project, it's best to get a personalized quote. We can help arrange that.
What are the rules for ADU housing in Santa Maria?
Can I find homes with mother-in-law suites in Santa Maria?
What is the cost of an ADU in Santa Maria?
What does accessory dwelling unit mean in the context of Santa Maria?
An accessory dwelling unit (ADU) in Santa Maria refers to a secondary, independent living space on your property. This could be a detached unit in your backyard or an addition to your main home. It's designed for someone to live in, with its own kitchen, bathroom, and sleeping area. We help you understand its potential for your home.
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, Central Santa Maria, Westside Santa Maria, Northwest Santa Maria, Airport Area — and every surrounding area.
Areas we serve
Browse by state, then city.
California (3)
All of California · Costa Mesa · Jurupa Valley · Santa Maria