Temecula · Wolf Creek · Paloma del Sol · Crowne Hill

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

Detached ADUs, attached ADUs, garage conversions, and JADUs across Temecula, Redhawk, Wolf Creek, Harveston, Paloma del Sol, and Crowne Hill. We build to the May 2025 Chapter 17.23 ordinance, handle plan check, package CalHFA grant submittals for qualifying homeowners, and self-perform foundation, framing, and finish with one licensed crew. CSLB #1009685.

Get a Free Temecula ADU Quote (951) 723-7132
20+ yrs Building in Riverside County
4.9 ★ 47 Google reviews
CSLB License #1009685
Chapter 17.23 Built to current ordinance
A finished detached ADU backyard cottage in a Temecula, California suburban yard at golden hour, with an olive tree and distant mountain backdrop.
Up to 1,200 sq ft Temecula detached ADU
CSLB #1009685 Licensed & Insured
Chapter 17.23 Built to current ordinance
DIR Registered Public works contractor
20+ Years Serving Riverside County
Temecula ADU types we build

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

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

Detached ADUs in Temecula

A standalone backyard cottage — the highest rental-income option and the path most Temecula 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 Temecula ADU standards), built to California Title 24 with all utilities and finishes in-house.

  • 500–1,500 sq ft permitted detached ADUs
  • Chapter 17.23 plan check handled end-to-end
  • Foundation, framing, MEP, finish — one crew, in-house
  • Typical Temecula detached ADU cost: $140,000–$280,000
  • 6–9 months from signed contract to keys
Start your Temecula detached ADU
Completed Temecula 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 Temecula

Most Temecula 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 Temecula property.

  • 400–600 sq ft typical — studio or one-bedroom
  • Reuses existing foundation and shell
  • Typical Temecula garage conversion cost: $60,000–$120,000
  • 3–5 months total timeline
Convert my Temecula 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 Temecula

Have a four- or five-bedroom Temecula 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 Temecula ADU option — often permitted faster too.

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

Attached ADUs in Temecula

An extension of your existing Temecula 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 Temecula attached ADU cost: $120,000–$200,000
  • 5–7 months total timeline
Add an attached ADU
City of Temecula PRADU program

Built to Temecula's Permit-Ready ADU plans — and Chapter 17.23.

The City of Temecula offers a FREE Permit-Ready ADU (PRADU) plan library — five pre-designed, City-reviewed floor plans Temecula homeowners can build with a faster, lower-cost permit submittal. We build the full PRADU library and handle the submittal end-to-end alongside the May 2025 Chapter 17.23 ordinance rules: up to 1,200 sq ft, 16-ft height, 4-ft setbacks, and a matching exterior to your primary home for clean plan check.

Official Temecula PRADU plan library

  • Studio499 sq ft
  • 1 BR / 1 BA625 sq ft
  • 2 BR / 1 BA749 sq ft
  • 2 BR / 2 BA909 sq ft
  • 3 BR / 2 BA1,194 sq ft

Source: City of Temecula ADU page · Three submittal paths: Permit-Ready ADU, Planning Application ADU, Building Permit Only ADU.

Qualifying Temecula homeowners can also stack the CalHFA ADU Grant — up to $40,000 in pre-development reimbursement (plans, permits, soil tests, impact fees). We help eligible clients package the grant submittal alongside their Temecula PRADU or custom permit.

Ask about PRADU plans View City PRADU library

  • 5 free, pre-approved PRADU plans

    City-reviewed Studio through 3BR/2BA — faster plan check, lower design cost than custom.

  • Three Temecula submittal paths

    PRADU, Planning Application, or Building Permit Only — we pick the right path for your lot.

  • Impact fees waived under 750 sq ft

    State-mandated waiver applied automatically in Temecula — thousands saved.

  • CalHFA $40K grant packaged

    We assemble the pre-development grant submittal for qualifying Temecula homeowners.

  • Exterior match handled

    Stucco, roof tile, paint, and trim matched to your primary home — Chapter 17.23 ready.

Where we build

Building ADUs across Temecula — every neighborhood.

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

RedhawkSouth Temecula
HarvestonNorth Temecula
Paloma del SolCentral Temecula
Paseo del SolCentral Temecula
Wolf CreekSouth Temecula
Crowne HillEast Temecula
Morgan HillSouth Temecula
Vintage HillsOld Town area
Temeku HillsNorth Temecula
Chardonnay HillsEast Temecula
De LuzWest Temecula · acreage
Wine CountryRancho California Rd
MurrietaAdjacent
WildomarAdjacent

Headquartered at 26111 Ynez Rd. Ste B28, Temecula, CA 92591 — right in the heart of Temecula. We build ADUs across Temecula, Murrieta, Wildomar, and the wider Inland Empire.

Why Temecula homeowners choose us

One Temecula 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 Temecula.

City of Temecula Chapter 17.23 expertise

We build to the May 2025 Temecula ADU ordinance (Chapter 17.23) line by line — setbacks, height, exterior-match, parking exemptions, and impact-fee waivers under 750 sq ft. That precision is what gets your Temecula ADU through plan check the first time.

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 Temecula ADU can rent for roughly $2,156/mo (1BR) to $2,450/mo (2BR) based on current Apartments.com Temecula market 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 — Temecula, Redhawk, Wolf Creek, Harveston & beyond

Headquartered at 26111 Ynez Rd. Ste B28 in Temecula, we’ve been building across Temecula, Redhawk, Wolf Creek, Harveston, Paloma del Sol, Paseo del Sol, Crowne Hill, Morgan Hill, Vintage Hills, Temeku Hills, De Luz, Murrieta and Wildomar since 2004. We know Temecula’s wine-country soil and slope, the HOA review committees, 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 Temecula Planning & Building & Building & Safety department — under the current Temecula Chapter 17.23 standards, with CalHFA grant packaging for qualifying homeowners.

  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 Temecula homeowners say

A 4.9★ average from 47 verified reviews.

Real ADU outcomes from Temecula, Wolf Creek, Paloma del Sol, and surrounding Inland Empire homeowners we've built for.

"They built a 1,200 sq ft detached ADU in our Redhawk backyard under the new Chapter 17.23 rules — stucco and roof tile matched to our main house perfectly. From signed contract to renter moving in was under nine months. Permits, foundation, hookups — all handled."
Sarah M. Temecula — Redhawk · Detached ADU, 2025
"We converted our oversized two-car garage in Wolf Creek into a 600 sq ft JADU for my mom. Permits through the City of Temecula, plumbing, kitchenette, separate entrance — done in five months and she loves the privacy."
Jason & Erika R. Temecula — Wolf Creek · JADU / Garage Conversion, 2024
"800 sq ft detached ADU on our Paloma del Sol lot — grading, septic tie-in, and a separate utility meter. Full Circle's crew understood the larger-parcel permitting in Temecula better than any other GC we interviewed."
Michael T. Temecula — Paloma del Sol · Detached ADU, 2024

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Common Temecula ADU questions

Temecula ADUs — cost, permits, timelines, income.

How much does an ADU cost in Temecula, CA?

In Temecula, a turnkey permitted ADU typically runs: $30K–$70K for a JADU (up to 500 sq ft inside the main house), $80K–$140K for a garage conversion, $150K–$220K for an attached ADU, and $200K–$300K for a detached ADU up to 1,200 sq ft.

Temecula’s wine-country market and the Chapter 17.23 exterior-match requirement (stucco, roof, paint matched to the primary home) push pricing above the Riverside County average. Qualifying homeowners can offset $40K of pre-development cost with the CalHFA ADU Grant.

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

The City of Temecula offers a FREE Permit-Ready ADU (PRADU) plan library with five pre-designed, pre-approved floor plans: Studio (499 sq ft), 1BR/1BA (625 sq ft), 2BR/1BA (749 sq ft), 2BR/2BA (909 sq ft), and 3BR/2BA (1,194 sq ft). Because the plans are already reviewed by the City, PRADU submittals move faster and cost less than a custom design.

Temecula offers three ADU submittal paths: (1) Permit-Ready ADU (PRADU), (2) Planning Application ADU, and (3) Building Permit Only ADU. We help you pick the right path for your lot and goals. Plans, PRADU handout, and checklist are on the City of Temecula ADU page.

What changed in the May 2025 Temecula ADU ordinance (Chapter 17.23)?

In May 2025, the Temecula City Council adopted an updated ADU ordinance under Chapter 17.23. Detached and attached ADUs are allowed up to 1,200 sq ft, JADUs up to 500 sq ft, with a 16-ft height limit (18 ft near transit) and 4-ft side and rear setbacks. Impact fees are waived for ADUs under 750 sq ft, short-term rentals are prohibited, and your ADU exterior must match the primary home's materials, roofing, and color.

You can read the full chapter on the City of Temecula's eCode360 page or call the Temecula Planning & Building Department at (951) 694-6400.

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

From signed contract to keys, a typical Temecula ADU build runs 6–9 months for a detached ADU and 3–5 months for a garage conversion or JADU.

Permitting through the City of Temecula Planning & Building Department averages 8–12 weeks under Chapter 17.23; on-site work — foundation, framing, MEP, finish — takes another 12–20 weeks depending on size and finish level.

How big can my ADU be in Temecula?

Under Chapter 17.23 (May 2025), Temecula allows detached and attached ADUs up to 1,200 sq ft on single-family lots, with a 16-ft height limit (18 ft within a half mile of public transit). JADUs are capped at 500 sq ft inside the existing primary dwelling. Side and rear setbacks are 4 feet, and no setback is required when building inside an existing structure.

Multifamily Temecula lots can host up to 8 detached ADUs. We run a free feasibility check on your parcel before any design work.

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

Yes — long-term rentals (30+ days) are allowed under Chapter 17.23, but short-term rentals under 30 days are prohibited for Temecula ADUs. Based on Apartments.com Temecula market data, average rents are roughly $2,156/mo for a 1-bedroom and $2,450/mo for a 2-bedroom; Paloma del Sol–Paseo del Sol averages run $2,241–$2,824.

A typical detached ADU generates roughly $26K–$32K of gross annual rental income, with 7–10 year payback common at current 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 Temecula HOA allow ADUs?

Under California Government Code Section 66314 (AB 670 and follow-on statutes), Temecula HOAs cannot prohibit ADUs on single-family lots, but they can enforce reasonable design standards. Most master-planned communities here — Redhawk, Harveston, Crowne Hill, Morgan Hill, Wolf Creek, Paloma del Sol, Vintage Hills, Temeku Hills — require architectural review.

We coordinate directly with your HOA architectural review committee — submittals, exterior finish selections, and color matching — in parallel with the City of Temecula permit so you don’t lose calendar time.

Free Temecula ADU consultation & quote.

Tell us about your Temecula lot and what you want to build. We'll walk you through Chapter 17.23 compliance, CalHFA grant eligibility, 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 Temecula, Wolf Creek, Paloma del Sol, Redhawk & surrounding

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Primary service area: Temecula & surrounding Inland Empire.
Part of the Full Circle Builders family

Temecula ADU Builder is a service of Full Circle Builders Inc.

We’re the ADU-focused arm of Full Circle Builders Inc. — a licensed California general contractor (CSLB #1009685) serving Riverside County since 2004. Beyond ADUs, our parent company handles custom homes, kitchen and bath remodels, room additions, commercial buildouts, and public-works projects across the Inland Empire.

Visit our main site → Looking for Menifee? See MenifeeADUBuilders.com