Best accessory dwelling unit — Boca Raton, FL
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 rental possibilities for an accessory dwelling unit in Boca Raton?
Who are the best ADU builders for projects in Boca Raton?
Can I get an affordable accessory dwelling unit built in Boca Raton?
What is the typical accessory dwelling unit cost in Boca Raton?
What ADU services are available for residents in Boca Raton?
What is involved in getting an ADU quote in Boca Raton?
What are the advantages of a backyard accessory dwelling unit 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: Mizner Park, East Boca, Boca Square, Royal Palm Yacht & Country Club, Harbour East — and every surrounding area.
Areas we serve
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