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
This is a detached unit built on your property, separate from your main home. It is a practical solution if you have extra yard space and want to add living quarters for family, guests, or tenants. These structures offer privacy while keeping you close to your primary residence.
Frequently asked in Boca Raton
What's the average cost of an accessory dwelling unit in Boca Raton?
What's involved in accessory dwelling unit building in Boca Raton?
How do I get an ADU estimate for my Boca Raton property?
Where can I find an accessory dwelling unit near me in Boca Raton?
What is the process for an accessory dwelling unit permit in Boca Raton?
What makes a good ADU company for Boca Raton?
What services do accessory dwelling unit services offer 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: East Boca Raton, West Boca Raton, Boca Square, Harbor East, Boca Pointe — and every surrounding area.
Areas we serve
Browse by state, then city.
