Attached ADUs in Menifee
An extension of your existing home with its own private entrance — independence for family, with shared walls and utilities that keep the cost below a fully detached build.
- Up to 1,200 sq ftOr 50% of main home
- $120K–$200KTypical Menifee cost
- 5–7 monthsTotal timeline
- Shared tie-insLower utility cost
When an attached ADU is the right call
An attached ADU shares at least one wall with your existing Menifee home but functions as a completely separate residence, with its own private entrance, kitchen, and bath. It is a natural fit for multigenerational living — close enough for aging parents or adult children to stay connected, separate enough that everyone keeps their independence.
Because it ties into the main home's structure and utilities, an attached ADU usually costs less to build than a comparable detached unit while still delivering full-size living space — up to 1,200 sq ft, or 50% of the existing home's floor area, depending on which limit applies to your property.
Cost and timeline in Menifee
Attached ADUs in Menifee typically run $120,000 to $200,000 and complete in 5 to 7 months. Shared utility connections and a shared wall reduce both material and labor cost compared with a standalone build, though the connection to the existing structure requires careful framing and waterproofing — work our in-house crew handles directly.
Design that protects your existing home
The trickiest part of an attached ADU is the junction with the original house: matching rooflines, tying in foundations, and keeping the existing home weather-tight throughout construction. As a licensed general contractor (CSLB #1009685) self-performing every trade, we manage that interface ourselves rather than coordinating separate subs — which keeps quality and the schedule under control.
Permitting handled for you
We prepare and submit the full permit package to City of Menifee Building & Safety, including structural and Title 24 energy details, and see it through plan check and inspections so you don't have to navigate the process alone.
Frequently asked questions
How big can an attached ADU be in Menifee?
Attached ADUs are generally limited to 1,200 sq ft or 50% of the existing home's floor area, whichever rule applies to your property. We confirm your maximum during design.
Is an attached ADU cheaper than a detached one?
Usually, yes. Sharing a wall and utility connections with the main home lowers cost — typically $120,000 to $200,000 in Menifee versus more for a comparable detached build.
Can an attached ADU have its own entrance?
Yes — an attached ADU is required to have its own independent exterior entrance, along with its own kitchen and bathroom, so occupants have full privacy.
Will construction disrupt my existing home?
We plan the tie-in to keep your home weather-tight and livable throughout. Because one crew handles the whole project, we control dust, access, and scheduling closely.
Related ADU services & areas
Add an attached ADU in Menifee
Get a free consultation and fixed written quote for an attached ADU built by one licensed crew.