Modular 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
A modular unit is built in a factory and then transported to your property to be finished on a foundation. You should consider this if you want a faster construction timeline with less disruption to your daily life. It is an efficient way to add high-quality space to your lot.
Frequently asked in Boca Raton
What affects the cost of an ADU unit in Boca Raton?
How much does an ADU cost to build in Boca Raton?
Can I get an accessory dwelling unit rental in Boca Raton?
What's involved in accessory dwelling unit construction in Boca Raton?
Are there accessory dwelling units (ADUs) available in Boca Raton?
Who are the best ADU companies in Boca Raton?
What are accessory dwelling unit homes like 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, Royal Palm Yacht & Country Club, Addison Estates, Boca Square, Cinnamon Beach — and every surrounding area.
Areas we serve
Browse by state, then city.