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 contractor oversees the physical build, managing the subcontractors, materials, and daily construction progress. They are responsible for making sure the structure is built according to the approved plans and local safety standards. You need a contractor when you have your designs finalized and are ready for the actual building phase to begin. They act as the primary point of contact for all site activity.
Frequently asked in Boca Raton
How does a larger property size affect ADU planning in Boca Raton?
What are the financing options for an accessory dwelling unit in Boca Raton?
Does AccessoryDwellingUnit Services operate in New Hampshire?
What's involved in accessory dwelling unit construction in Boca Raton?
Can I find accessory dwelling unit homes for sale in Boca Raton?
What is the accessory dwelling unit permit cost in Boca Raton?
What are the options for modular accessory dwelling units 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, Glades neighborhood, South Beach, East Boca Raton — and every surrounding area.
Areas we serve
Browse by state, then city.
