ADUs & Additions in Santa Clarita

City of Santa Clarita Building & Safety Division. Santa Clarita permits through its own Building & Safety Division, not LA County or LADBS. The city enforces an oak tree preservation ordinance, and many master-planned communities have their own HOA architectural review.

The city treats HOA approvals and CC&Rs as the property owner's responsibility, separate from the city permit, so both approvals are best pursued in parallel. We prepare the drawings, make the submittal and handle plan-check corrections ourselves, so you are not the one chasing plan check.

Master-planned family neighborhoods with defined lots and active HOAs, plus larger semi-rural parcels toward the canyons. One local condition that shapes the work: Master-planned Valencia tracts commonly require HOA design review alongside the city permit.

All of it, including Valencia, Saugus, Newhall and Canyon Country. Our crews run every job out of our Cahuenga Pass base in Los Angeles, with our own people on site.

Detached ADU: generally $150,000 to $400,000+ across Southern California. What moves it is square footage, finish level, utility runs, and site access; garage conversions typically run well below a ground-up detached build. We give line-item pricing after seeing the site rather than quoting a number over the phone.

Plan a realistic year. Design and engineering typically take one to three months, city plan check and corrections add several more, and construction usually runs four to eight months depending on size and site access.

Usually yes, and often substantially, because the foundation, walls and roof already exist. The trade-offs are that you lose the garage, and older slabs and framing sometimes need upgrading to meet current code.

California ADU law is designed to allow long-term rental, and an ADU is one of the few ways to add rentable square footage to a single-family lot. Short-term rental rules vary by city, so confirm your local ordinance before counting on that income.

Yes. Plans, engineering, Title 24 and the city submittal are all handled in-house, including responding to plan-check corrections. That is a service we sell on its own, so it is not something we hand off.