Junior ADUs (JADU) in Menifee

What a JADU is — and who it's perfect for

A Junior ADU (JADU) is a unit of up to 500 square feet created entirely within the existing walls of your home, typically from a spare bedroom. It has its own exterior entrance and an efficiency kitchenette, and it may share a bathroom with the main house or have its own. For Menifee homeowners with a four- or five-bedroom house where a room rarely gets used, a JADU is the lowest-cost path to a legal, income-producing or family-friendly space.

Because it stays inside the home's footprint, a JADU requires no new foundation or exterior shell — which is exactly why it is the most affordable and fastest ADU type we build.

Cost and timeline in Menifee

JADUs in Menifee typically cost $30,000 to $70,000 and complete in 2 to 4 months. The variables are mainly the new exterior entrance, the kitchenette, and any electrical or plumbing updates. As with every project, you get a fixed written scope and price before we start.

Rules worth knowing

California allows a JADU in addition to another ADU on many single-family lots, so some Menifee homeowners pair a JADU with a detached unit. JADUs do carry an owner-occupancy requirement — the property owner must live in either the main home or the JADU. We walk you through how these rules apply to your property during the free consultation and handle the City of Menifee permit submittal end to end.

Licensed, permitted, inspected

Full Circle Builders is a licensed California general contractor (CSLB #1009685). Even though a JADU is compact, we build it to full code with proper permits and inspections so it counts as a legal dwelling and protects your home's value.

Frequently asked questions

What's the difference between a JADU and a regular ADU?

A JADU is capped at 500 sq ft and must be created within the existing walls of your home, with its own entrance and a kitchenette. A standard ADU can be larger, can be detached or attached, and has a full kitchen. JADUs are cheaper and faster but smaller.

How much does a JADU cost in Menifee?

Most Menifee JADUs cost $30,000 to $70,000, making them the most affordable ADU type. Final cost depends on the new entrance, kitchenette, and any electrical or plumbing work.

Do I have to live on the property if I build a JADU?

Yes. California requires owner-occupancy for a JADU — you must live in either the main home or the JADU itself. We explain exactly how this applies to your situation before you commit.

Can I have both a JADU and another ADU?

Often, yes. California law allows many single-family properties to add a JADU in addition to a detached ADU. We confirm what your specific Menifee lot allows.

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