Detached ADU Builder in Menifee

What a detached ADU adds to a Menifee property

A detached ADU is a fully independent dwelling built separately from your main house — its own walls, roof, entrance, kitchen, and bathroom. For most Menifee homeowners it is the option that returns the most: it commands the highest rent, appeals to the widest range of tenants and family members, and adds the most resale value of any ADU type. On the typical Menifee single-family lot there is room for anything from a compact 500 sq ft studio to a full 1,200 sq ft two-bedroom, and certain lots qualify for up to 1,500 sq ft under current California ADU standards.

Because it stands on its own, a detached ADU gives occupants genuine privacy — which is exactly why it works equally well as a rental, a home office, a space for aging parents, or a place for adult kids saving for their own home. It is the most common build we complete across Menifee, Sun City, and Quail Valley.

Cost and timeline for a Menifee detached ADU

Most detached ADUs in Menifee land between $140,000 and $280,000 all-in, depending on size, finishes, and site conditions such as utility runs and grading. From a signed contract to handing you the keys typically takes 6 to 9 months, including design, plan check through Menifee Community Development, and construction. We give you a fixed written scope before any work begins, so there are no moving targets.

A faster path: the Menifee PRADU program

If you want speed and predictability, the City of Menifee's Permit-Ready ADU (PRADU) program uses pre-approved floor plans — including a 3-bedroom, 1,198 sq ft detached plan — that clear plan check noticeably faster and cut design fees by thousands. We build every PRADU plan in the set and handle the full permit submittal for you.

Why build with Full Circle Builders

We are a licensed California general contractor (CSLB #1009685) that self-performs the work — foundation, framing, mechanical, electrical, plumbing, and finishes are handled by our own crew rather than a rotating cast of subcontractors. That means one point of accountability, tighter scheduling, and consistent quality from slab to final inspection. Every Menifee ADU we build is permitted and inspected, never "under the table."

Frequently asked questions

How big can a detached ADU be in Menifee?

Detached ADUs in Menifee are commonly permitted from 500 up to 1,200 square feet, and certain lots qualify for up to 1,500 square feet under current California ADU law. The right size depends on your lot, setbacks, and goals — we confirm your maximum during the free consultation.

How much does a detached ADU cost in Menifee?

Most detached ADUs in Menifee cost between $140,000 and $280,000 all-in, depending on square footage, finish level, and site work such as utility connections and grading. You receive a fixed written scope and price before construction starts.

How long does it take to build a detached ADU?

Plan on roughly 6 to 9 months from signed contract to keys, covering design, City of Menifee plan check, and construction. Choosing a pre-approved PRADU plan can shorten the permitting phase.

Do I need a separate utility meter?

Not always. Detached ADUs can often run off the main home's services, though larger units or specific utility requirements may call for a separate connection. We assess this during design and include any required work in your scope.