ADU Cost: Detached, Attached, Garage, and Basement Options
Compare accessory dwelling unit and secondary-suite costs by physical form, independent living functions, sitework, utilities, approvals, and local terminology.
Cross-category index
Garden-Suite
Browse 2 guides connected by tag “Garden-Suite”. Use the category label on each result to keep the project scope clear.
Detached ADU Cost: Backyard Cottage and Garden Suite Economics
Estimate a detached ADU by separating the building from site preparation, foundation, access, utility connections, approvals, and restoration.