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
Frequently asked in Boca Raton
What are the different types of ADU homes available in Boca Raton?
How do I find reputable ADU companies in Boca Raton?
What are the key considerations for a detached ADU in Boca Raton?
What does 'accessory dwelling unit' actually mean for my Boca Raton property?
What are the benefits of ADU housing in Boca Raton?
How do I get started with an ADU contractor in Boca Raton?
Can you explain the process for ADU permits in Boca Raton?
Also serving nearby: Pompano Beach · Coral Springs · Fort Lauderdale · Sunrise · Davie
More on this: HUD ADU resources — ADU policy and financing research.
Service area details
Serving all of Boca Raton — population 99,974; about 3,426 residents per square mile across 29.2 sq mi. ZIP codes covered include 33427, 33428, 33429, 33431, 33432, 33433, 33434, 33464.
Neighborhoods served in Boca Raton: Royal Palm Yacht & Country Club, Mizner Village, The Estates, Boca Square, Boca Pointe — and every surrounding area.
Areas we serve
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