Menifee · Sun City · Quail Valley · Romoland

Menifee's ADU builder. Design, permit, build — turnkey.

Detached ADUs, attached ADUs, garage conversions, and JADUs across Menifee, Sun City, Quail Valley, and Romoland. We handle the City of Menifee Permit-Ready ADU (PRADU) plans, plan check, foundation, framing, and finish — all with one self-performing licensed crew. CSLB #1009685.

Get a Free Menifee ADU Quote (951) 723-7132
20+ yrs Building in Riverside County
4.9 ★ 47 Google reviews
CSLB License #1009685
PRADU Menifee Permit-Ready certified
A finished detached ADU backyard cottage in a Menifee, California suburban yard at golden hour, with an olive tree and distant mountain backdrop.
Up to 1,200 sq ft Menifee detached ADU
CSLB #1009685 Licensed & Insured
Menifee PRADU Permit-Ready certified
DIR Registered Public works contractor
20+ Years Serving Riverside County
Menifee ADU types we build

Four paths to a Menifee ADU. We build them all.

Every Menifee lot is different. Whether you want a 1,200 sq ft detached backyard cottage, a fast garage conversion, or a budget-friendly JADU — we'll help you pick the right path, then design, permit, and build it.

Finished detached ADU in a Menifee backyard with white stucco, dark metal roof, large sliding glass door, and mountain backdrop at golden hour.
Most popular · Menifee detached ADU

Detached ADUs in Menifee

A standalone backyard cottage — the highest rental-income option and the path most Menifee homeowners ultimately choose. Sized from 500 sq ft studios up to a full 1,200 sq ft two-bedroom (and up to 1,500 sq ft under certain Menifee ADU standards), built to California Title 24 with all utilities and finishes in-house.

  • 500–1,500 sq ft permitted detached ADUs
  • City of Menifee Community Development plan check handled
  • Foundation, framing, MEP, finish — one crew, in-house
  • Typical Menifee detached ADU cost: $140,000–$280,000
  • 6–9 months from signed contract to keys
Start your Menifee detached ADU
Completed Menifee garage conversion ADU with cream stucco, two large picture windows replacing the garage door, and a side entry with awning.
Fastest · Lowest cost

Garage Conversion ADUs in Menifee

Most Menifee homes have oversized 2- or 3-car garages that convert beautifully into 400–600 sq ft ADUs. Existing slab and walls cut $40K–$80K compared to new construction — the fastest, most affordable way to add a rentable unit to your Menifee property.

  • 400–600 sq ft typical — studio or one-bedroom
  • Reuses existing foundation and shell
  • Typical Menifee garage conversion cost: $60,000–$120,000
  • 3–5 months total timeline
Convert my Menifee garage
Bright interior of a finished accessory dwelling unit with white kitchenette, vaulted wood-beam ceiling, sofa, and queen bed in a single open studio space.
Budget-friendly

Junior ADUs (JADU) in Menifee

Have a four- or five-bedroom Menifee home where a room rarely gets used? A JADU converts one bedroom into a self-contained 500 sq ft unit with its own entrance and kitchenette. The most affordable Menifee ADU option — often permitted faster too.

  • Up to 500 sq ft, within the existing home footprint
  • Separate exterior entrance and kitchenette
  • Typical Menifee JADU cost: $30,000–$70,000
  • 2–4 months total timeline
Get a JADU quote
Modern farmhouse style ADU at twilight in a Menifee backyard with white board-and-batten siding, dark metal roof, glowing interior lights, and a covered porch.
Multigenerational fit

Attached ADUs in Menifee

An extension of your existing Menifee home with its own private entrance — a practical fit for multigenerational families. Shares walls and utility connections, which keeps cost below a fully detached build while giving occupants real independence.

  • Up to 1,200 sq ft (or 50% of main home)
  • Shared utility tie-ins lower install cost
  • Typical Menifee attached ADU cost: $120,000–$200,000
  • 5–7 months total timeline
Add an attached ADU
City of Menifee program

Menifee Permit-Ready ADU (PRADU) builds.

The City of Menifee offers a Permit-Ready ADU program that streamlines plan check using pre-approved floor plans. The largest plan in the set — Plan 3A — is a 3-bedroom, 1,198 sq ft detached ADU. PRADU builds skip much of the custom-design phase, cut design costs, and move through Menifee Community Development noticeably faster than custom plans.

We build every PRADU floor plan and handle the full permit submittal through the Building & Safety Department on Aldergate Drive. If you want the fastest, most predictable path to a Menifee ADU, this is it.

Ask about PRADU plans View Menifee PRADU info

  • Pre-approved floor plans

    Studio, 1BR, 2BR, and 3BR layouts already vetted by the City of Menifee.

  • Faster plan-check turnaround

    PRADU builds typically clear Menifee plan check in 4–6 weeks versus 8–12 for custom designs.

  • Up to 1,198 sq ft

    Largest PRADU plan supports a full 3-bedroom layout for family or rental income.

  • Lower design fees

    Skipping a fully custom architectural set saves homeowners $4,000–$10,000 in design costs.

Where we build

Building ADUs across Menifee — every neighborhood.

We work every Menifee neighborhood and the surrounding Riverside County communities. Same crew, same license, same standards.

Audie Murphy RanchMenifee
Heritage LakeMenifee
The LakesMenifee
McCall MesaMenifee
Sun City55+ community
Quail ValleyMenifee
RomolandNorth Menifee
HomelandAdjacent
WinchesterAdjacent
MurrietaAdjacent
WildomarAdjacent
PerrisAdjacent

Headquartered at 26111 Ynez Rd. Ste B28, Temecula, CA 92591 — a 15-minute drive from Menifee. We build ADUs across Riverside County and the Inland Empire.

Why Menifee homeowners choose us

One Menifee crew. Every ADU trade. No subcontractor roulette.

Most contractors hand your ADU job off to a rotating cast of subs. We don't. The same self-performing crew that pours your foundation frames your walls, hangs your finish, and walks the final inspection with the City of Menifee.

City of Menifee PRADU expertise

We build directly off the City of Menifee Permit-Ready ADU plans (Plan 3A, 3B, and the wider PRADU library). Pre-approved drawings cut plan-check time dramatically and lock down a predictable path to permits with Menifee Community Development.

Self-performing multi-trade crew

Concrete, masonry, framing, finish carpentry, painting — all in-house. Fewer handoffs means tighter ADU build schedules, predictable cost, and a single point of accountability from groundbreaking to keys.

Rental income & multigenerational living

A permitted Menifee ADU can rent for roughly $1,855/mo (1BR) to $2,400/mo (2BR) based on current Apartments.com and Zillow data — or house aging parents and adult kids without selling the family home. We design every ADU around the outcome you actually want.

Local since 2004 — Menifee, Sun City, Quail Valley & beyond

Headquartered at 26111 Ynez Rd. Ste B28 in Temecula, we've been building across Menifee, Sun City, Audie Murphy Ranch, Heritage Lake, Quail Valley, Romoland, Winchester, Murrieta, and Wildomar since 2004. We know the local soil, slope, HOAs, and which inspectors care about which details.

How we work

A clear path from quote to keys.

No mystery, no missed updates. You'll know what's happening, when, and what comes next at every stage.

  1. Free consultation & quote

    Walk your site with us, talk through scope and budget, and get a written quote with a firm scope of work. No deposit required to start.

  2. Design & permitting

    We handle architectural drawings, structural engineering, and the full submittal through the City of Menifee Community Development & Building & Safety department — including the Permit-Ready ADU (PRADU) path when it's the right fit for your lot.

  3. Build with one crew

    Your project runs through our self-performing crew with daily progress photos and a Buildertrend client portal so you can track every milestone.

  4. Final walk & warranty

    Punch list, final inspection, and a written warranty on workmanship. We pick up the phone after the project is done — that's where the "full circle" comes from.

What Menifee homeowners say

A 4.9★ average from 47 verified reviews.

Real ADU outcomes from Menifee, Sun City, Quail Valley, and surrounding Inland Empire homeowners we've built for.

"They built a 1,198 sq ft detached ADU in our Audie Murphy Ranch backyard using the Menifee PRADU Plan 3A. From signed contract to renter moving in was under eight months. Permits, foundation, hookups — all handled."
Sarah M. Menifee — Audie Murphy Ranch · Detached ADU, 2025
"We converted our oversized two-car garage in Sun City into a 600 sq ft JADU for my mom. Permits through the City of Menifee, plumbing, kitchenette, separate entrance — done in five months and she loves the privacy."
Jason & Erika R. Menifee — Sun City · JADU / Garage Conversion, 2024
"800 sq ft detached ADU on our Quail Valley lot — grading, septic tie-in, and a separate utility meter. Full Circle's crew understood the larger-parcel permitting in Menifee better than any other GC we interviewed."
Michael T. Menifee — Quail Valley · Detached ADU, 2024

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Common Menifee ADU questions

Menifee ADUs — cost, permits, timelines, income.

How much does an ADU cost in Menifee, CA?

In Menifee, a turnkey permitted ADU typically runs: $30K–$70K for a JADU (up to 500 sq ft inside the main house), $60K–$120K for a garage conversion, $120K–$200K for an attached ADU, and $140K–$280K for a detached ADU up to 1,200 sq ft.

Final cost depends on lot grading, soil, distance to existing utilities, finish level, and whether you use a City of Menifee Permit-Ready ADU (PRADU) plan, which can lower both design and plan-check cost.

What is the City of Menifee Permit-Ready ADU (PRADU) program?

The Menifee PRADU program offers a library of pre-approved detached ADU designs (Plan 3A is a popular 1,198 sq ft 3-bed/2-bath layout) that significantly shorten plan check and reduce design fees.

We are set up to build directly off the PRADU plans and submit through Menifee Community Development. Call the city's planning desk at (951) 723-3741 for the official program packet, or let us walk you through whether a PRADU plan fits your lot.

How long does it take to build an ADU in Menifee?

From signed contract to keys, a typical Menifee ADU build runs 5–8 months for a PRADU detached unit and 4–6 months for a garage conversion or JADU.

Permitting through the City of Menifee averages 4–8 weeks (faster with PRADU plans); on-site work — foundation, framing, MEP, finish — takes another 12–20 weeks depending on size.

How big can my ADU be in Menifee?

California state law (and Menifee's ADU ordinance) allows detached and attached ADUs up to 1,200 sq ft on most single-family lots. JADUs are capped at 500 sq ft and must be located within the existing footprint of the main house.

Many Menifee lots can accommodate the full 1,200 sq ft — we run a free feasibility check on your parcel before the design phase.

Can I rent out my Menifee ADU? How much can I earn?

Yes. California permits owner-occupant ADUs to be rented on a long-term basis (30+ day rentals). Based on current Apartments.com and Zillow data for Menifee, average rents are roughly $1,855/mo for a 1-bedroom and $2,200–$2,407/mo for a 2-bedroom.

A typical detached PRADU can pay itself off in 7–10 years at those rent levels, depending on finance terms.

What is Full Circle Builders' CSLB license number?

Full Circle Builders Inc. holds California Contractors State License Board (CSLB) license #1009685 (Class B General Building).

We are also DIR-registered for public works. You can verify our license anytime at the CSLB License Check.

Does my Menifee HOA allow ADUs?

Under California state law (AB 670 and follow-on ADU statutes), HOAs cannot prohibit ADUs on single-family lots, though they may impose reasonable architectural standards. This applies in Audie Murphy Ranch, Heritage Lake, The Lakes, and other Menifee master-planned communities.

We coordinate directly with your HOA architectural review committee — submittals, exterior finish selections, and color matching — alongside the City of Menifee permit.

Free Menifee ADU consultation & quote.

Tell us about your Menifee lot and what you want to build. We'll walk you through PRADU vs custom, timeline, and a real turnkey number — no deposit, no obligation.

(951) 723-7132 Monday–Saturday, 8am–5pm info@fullcirclebuildersinc.com We reply within one business day 26111 Ynez Rd. Ste B28, Temecula, CA 92591 Serving Menifee, Sun City, Quail Valley, Audie Murphy Ranch & surrounding

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Primary service area: Menifee & surrounding Inland Empire.