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 prefab ADU is a unit built off-site in a controlled factory environment and then transported to your property. This method can sometimes be faster than traditional stick-built construction and often results in less waste. You need this if you want a standardized, high-quality structure with a shorter on-site construction window. Exact pricing confirmed free on the call.
Frequently asked in Lexington-Fayette
What does it cost to build an accessory dwelling unit in Lexington-Fayette?
How do I get an ADU estimate for my property?
What ADU services are available in Lexington-Fayette?
Are there accessory dwelling unit grants in Lexington-Fayette?
What is the process for ADU permit?
Can you find me accessory dwelling unit homes?
We specialize in helping you plan and build new accessory dwelling units. While we don't directly list existing homes, we can help you understand the process of adding one to your current property. Licensed, insured builders can create custom ADUs to suit your needs. Let's discuss how to add value to your home.
What does accessory dwelling unit mean?
More on this: HUD ADU resources — ADU policy and financing research.
Service area details
Serving all of Lexington-Fayette — population 320,154.
Neighborhoods served in Lexington-Fayette: Chevy Chase, Southland, Masterson Station, Ashland Park, Tates Creek, Woodford Place — and every surrounding area.
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