Attached ADU design and construction in Elk Grove
An attached ADU is the unit that shares one wall with your house and almost nothing else. Its own entrance, its own kitchen, its own bath — a complete second home joined to your first. We build them all over Elk Grove from our Sacramento base about 20 minutes north, and most of this page is what we wish every Elk Grove homeowner knew before the first call: how the shared wall works, what the City wants, and where the money goes.
Attached or detached on an Elk Grove lot
The first fork in any ADU conversation is attached versus detached, and on an Elk Grove lot the answer usually comes down to geometry. An attached ADU grows off your house, sharing one wall. A detached unit stands alone in the backyard. People assume detached is the default, but most of Elk Grove is newer master-planned suburbia — big family homes on modest lots — and a freestanding cottage needs clear space on every side to satisfy setbacks. Hang the unit off the house and you only clear the outer side setback. On a Stonelake or Laguna West lot, that's often the difference between a project that pencils and one that stalls at the property line.
There's a structural trade both directions. Detached buys total independence: no shared wall, no tie-in to your roof, no question of whether your footing carries a new load. You pay with a second foundation and a second roof — and on Elk Grove's expansive clay, that foundation isn't a throwaway cost. Attached borrows your wall, your roofline and frequently your utilities, which trims the budget, but it asks more of your existing house. If the wall needs work, or the footing needs a careful transition over clay, some of that savings goes back into the connection.