ADU Construction in Orange County

California's ADU laws have made it significantly easier to add a second unit to a single-family lot, whether that's for rental income, a guest suite, a home office or space for aging parents. Most cities are required to process compliant ADU permits ministerially, without a discretionary hearing — but the plans still have to meet building code and site-specific requirements to move quickly.

Because design, permitting and construction run through one team, zoning and utility questions — setbacks, parking replacement, separate metering — get resolved during feasibility review, not after plans are already submitted.

ADU rules — size limits, parking replacement, setback requirements — vary by city even though they're all built on the same state law framework. Our team confirms what's actually allowed on your lot before design work goes very far, so you're not redesigning after plan check.

Utility connections are often the detail that determines an ADU's timeline: whether it can share a water or electrical connection with the main house, or needs its own. We work through that during planning so construction isn't held up waiting on a utility decision.