Get an ADU Estimate From a Local Builder

An accessory dwelling unit is a second, smaller home on a lot that already has one. It can be detached and built in the yard, converted from a garage, basement or attic, or attached to the existing house as an addition. Which types are allowed depends on local rules.

It depends most on the type. Converting existing space such as a garage is generally least expensive because the shell exists. A detached new build costs most, because it is a complete small house with its own foundation, roof and systems. Utility connections, site access and ground conditions all affect the figure.

No. Homeowners come to this at different stages, some with drawings and approvals and some with an idea. A builder can work with either, but the answer will be more specific the further along you are. Saying which stage you are at helps you get a useful answer.

A conversion of existing space is usually faster than a detached new build, which is a complete structure. Design and permitting often take longer than people expect and happen before construction starts, so the useful question is how long the whole process takes rather than just the build.

No. ADU Home Experts does not build anything and is not a builder or a contractor. It connects homeowners considering an accessory dwelling unit with a builder who serves their area. The builder handles the assessment, the design and permitting discussion, the estimate and the construction.

Your request goes to Home Lead Supply, where we match it with an ADU builder who covers your area. If we have a match, that builder contacts you directly, usually by phone, to go over your property and your plans before preparing an estimate. You are free to ask questions and decide from there.