ADU Designers & Builders ADU projectLicense Verified

ADU Designers & Builders

Serving Brea, Anaheim, Huntington Beach, Fullerton & more · Based in Brea, CA

Pricing on request — unlock ADU Designers & Builders's ADU pricing for your project

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ADU Designers & Builders ADU project 1
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ADU Designers & Builders ADU project 4
ADU Designers & Builders ADU project 5

About ADU Designers & Builders

ADU Designers & Builders is a CSLB-verified contractor listed in Orange County with classification B.

17+ years building ADUs · CSLB 926786 · B - General Building Contractor

ADU Designers & Builders ADU pricing

Pricing varies by unit type, size, finishes, and site conditions. Unlock ADU Designers & Builders's project pricing for your lot — free, no obligation.

Unit typeTypical sizePricing
Studio / JADU≤ 500 sq ftPricing locked — unlock to view
1-bedroom detached ADU600–750 sq ftPricing locked — unlock to view
2-bedroom detached ADU750–1,000 sq ftPricing locked — unlock to view
Garage conversion400–600 sq ftPricing locked — unlock to view
Attached ADU400–800 sq ftPricing locked — unlock to view

Pricing is unlocked per project

Share a few details and we'll send ADU Designers & Builders's pricing for your build.

Services ADU Designers & Builders offers

  • Detached ADUs
  • Attached ADUs
  • Garage Conversions
  • Junior ADUs (JADU)
  • Permitting

What ADU Designers & Builders handles

Design & permitting

In-house design and full permit handling.

  • Architectural design & 3D renderings
  • Structural & Title 24 energy plans
  • City plan-check submittal & corrections

Construction

Turnkey ground-up and conversion builds.

  • Foundation & framing
  • Detached, attached & garage-conversion ADUs
  • Electrical, plumbing & HVAC

Financing

Guidance and lender introductions.

  • Renovation / construction-loan guidance
  • HELOC & cash-out refinance referrals
  • ADU-specific (after-build-value) lenders

Project types

ADU formats this builder takes on.

  • Detached ADU
  • Attached ADU
  • Garage / ADU conversion

Warranty & support

What's covered after move-in.

  • Workmanship warranty
  • Manufacturer materials warranties
  • Dedicated project manager

Reviews of ADU Designers & Builders

5.08 reviews
Verified

Super happy with how my new place turned out! The crew was easy to work with, kept me updated, and finished per schedule. The quality is solid and everything looks great. The total cost was very reasonable and competitive. they built exactly what we requested. Really glad i hired them, they made the whole process way smoother than i expected. I love all details and recommendations they offered.

Vina0 found this helpful
Verified

I’m extremely happy with the ADU this company built in my backyard. The quality of the work is outstanding, solid construction, clean finishes, and everything done the right way. What really stood out to me was how stress-free they made the whole project. They were professional, organized, and kept me updated at every step, so I never had to worry about what was happening. And for the level of work they delivered, the cost was very reasonable. I’m truly satisfied and would recommend them to anyone looking to hire a designer and general contractor.

Zarif Zakaria0 found this helpful
Verified

I recently had an addition built onto my home and I can’t say enough great things about this company. From start to finish, they were professional, respectful, and truly dedicated to delivering quality work. The crew showed up consistently — they even worked on July 4th — which really showed their commitment to staying on schedule and doing things right. The workmanship is flawless. Every detail looks clean and intentional, and the finished space blends perfectly with the rest of the house. To be honest, the quote was so good to begin with I thought it may have been too good to be true but it wasn’t. I had a good handful of modifications throughout the project and Fawaz didn’t charge me an extra dime. Everyone I interacted with was friendly, honest, and easy to communicate with. It’s rare to find a team that does excellent work and is this pleasant to work with. I would absolutely hire them again and highly recommend them to anyone considering a remodel or addition. They made a big project feel smooth and stress-free. Also, they completed a full 400 square foot addition to my house in just over two months.

John Tropeano0 found this helpful
Verified

Farwaz and his team were amazing to work with. They were extra accommodating, even when things went awry on our side. They serviced us immediately and gave a really great bid, which was the lowest around. Awesome team and really great value! Gonna use for other services soon!

Steve Insall0 found this helpful
Verified

Been working with Fawaz for some time and he is very professional, responsive, and has the best prices period. A lot of these contractors are big rip offs and like to milk your money. He is upfront and the quality of work is the best. Whether you're remodeling a house, adding square footage, conversion, and/or building a ADU, Fawaz will have your back.

Brian Lee0 found this helpful

Frequently asked questions about ADU Designers & Builders

What does ADU Designers & Builders offer?

ADU Designers & Builders is a full-service ADU builder serving Brea, CA, handling design, permitting, and turnkey construction for detached ADUs, attached ADUs, garage conversions, and junior ADUs (JADUs). ADU Designers & Builders holds a 5.0-star rating across 8 verified homeowner reviews.

Is ADU Designers & Builders licensed and insured?

Yes. ADU Designers & Builders holds an active CSLB license (926786), classified B - General Building Contractor, and is bonded and insured.

How much does ADU Designers & Builders charge to build an ADU?

ADU Designers & Builders prices every ADU per project — your cost depends on size, finishes, and site conditions. Garage conversions are the most affordable path; detached units cost more. Pricing is unlocked per project: request a quote to get ADU Designers & Builders's exact, no-obligation estimate for your lot.

What areas does ADU Designers & Builders serve?

ADU Designers & Builders builds ADUs in Brea, Anaheim, Huntington Beach, Fullerton, Oxnard, Orange County.

How long does ADU Designers & Builders take to build an ADU?

Most ADU projects run 6–12 months end to end — roughly 1–2 months for design and permitting (California caps plan check at 60 days for compliant units) and 4–8 months of construction. ADU Designers & Builders confirms a timeline for your specific project during the feasibility consultation.

How do I get a quote from ADU Designers & Builders?

Tap any "Get a Quote" button on this page to share a few details about your property and project. We'll confirm your service area, match you directly with ADU Designers & Builders, and set up your free feasibility consultation — no obligation.

Where ADU Designers & Builders works

Brea, CAService-area map
Street View
  • City Building & Safety
  • Planning Department
  • Permit Center

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