One wall shared,
a whole second home off your Orangevale house.

An attached ADU shares exactly one wall with your existing Orangevale house. That single wall is the entire difference between this and a detached cottage out past the trees. Everything beyond it is a complete home — a private entrance off the side or rear, a real kitchen, a full bath, a bedroom a tenant reaches without ever crossing your living room. We've built these so the owner and the renter never meet indoors. The catch is structural. The new unit ties into your roofline, your foundation and your existing wall, and on a big Orangevale lot with mature oaks crowding the building area, that tie-in is where the real work hides. Done right, you can't find the seam from Main Avenue.

Orangevale is unincorporated, so there's no city counter — your permit files through Sacramento County. Attached units get an extra read in plan check: reviewers study how the addition connects to your existing house, which makes your home's as-built condition matter more than it would for a detached job. State law keeps the review ministerial, and that's your leverage. A complete, code-compliant set has to be issued. We submit the site plan, floor plan, elevations, the wall-tie and foundation-transition details, Title-24, the full MEP and SMUD coordination as one package. Septic load and the granite along the eastern edge both surface here too. Clean attached sets have been turning around in roughly 4-6 weeks. A thin set just buys correction rounds.