A self-contained unit connected to your home — great when yard space is tight or you want shared walls and simpler utilities.
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An attached ADU shares at least one wall with your main house — think of it as a self-contained addition with its own entrance, kitchen and bath. It's a strong choice when your yard is tight, when you'd rather not give up open backyard space, or when connecting to the existing structure simplifies utilities. Done well, it reads as a natural extension of the home while functioning as a fully independent unit.
Attached ADUs can be very cost-effective because they piggyback on the existing foundation and shared wall, and running plumbing and electrical from the main house is often shorter and simpler than to a detached unit in the back. The trade-off is less separation than a detached ADU and a design that has to work with your home's existing layout and roofline. Size and setback rules follow California ADU law, and we confirm what your specific home and lot allow.
The key to a great attached ADU is a design that ties into your home's architecture — matching rooflines, materials and finishes — so it adds value rather than looking tacked on. As a design-build team we handle that integration, along with permits and construction, from a single point of accountability.
Tell us about your property — we'll map out your options and a ballpark budget.
An attached ADU is a fully independent living unit — its own entrance, kitchen and bathroom — that happens to share a wall with your house, whereas a regular addition just expands your existing home. The ADU can be rented or lived in separately; an addition can't.
It can be, since it uses the existing foundation and a shared wall and often has shorter utility runs. The savings depend on your home's layout and where the unit attaches. We compare both options for your property at the consultation.
That's the goal. A good attached ADU matches your home's rooflines, materials and finishes so it reads as a seamless extension. Our design-build process handles that integration end to end.
Attached ADUs follow California ADU law for size and setbacks, though the specifics differ from detached units. We confirm exactly what your home and lot allow before designing.
Free, no-obligation ADU consultation for your Sacramento property.
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