We purchased a Westminster, CA home that was a fixer upper with plans to fully renovate before moving in. Orange County Construction was recommended to us from a co-worker, and I'm so grateful we chose them. They fully demoed and reconstructed our home from framing to finishes. From design to Turnkey completion, Keith and his team completed our dream home down to every meticulous detail. We appreciated the transparent communication, reasonable pricing the Keith offers up front. Despite supply chain delays during the Covid times, that was outside of their control, Orange County Construction delivered our stunning dream home on a timeline that worked for our family. Orange County Construction turned out broken home into an elegant showstopper thanks to their expertise!!
Orange County Construction ADU Contractor
Serving Anaheim, Huntington Beach, Costa Mesa, Fullerton & more · Based in Anaheim, CA
Pricing on request — unlock Orange County Construction ADU Contractor's ADU pricing for your project
Project gallery
Photos of Orange County Construction ADU Contractor's recent ADU builds are available on request — get a quote to see their portfolio.
About Orange County Construction ADU Contractor
Orange County Construction ADU Contractor is a CSLB-verified contractor listed in Orange County with classification B.
15+ years building ADUs · CSLB 950616 · B - General Building Contractor
Orange County Construction ADU Contractor ADU pricing
Pricing varies by unit type, size, finishes, and site conditions. Unlock Orange County Construction ADU Contractor's project pricing for your lot — free, no obligation.
| Unit type | Typical size | Pricing |
|---|---|---|
| Studio / JADU | ≤ 500 sq ft | Pricing locked — unlock to view |
| 1-bedroom detached ADU | 600–750 sq ft | Pricing locked — unlock to view |
| 2-bedroom detached ADU | 750–1,000 sq ft | Pricing locked — unlock to view |
| Garage conversion | 400–600 sq ft | Pricing locked — unlock to view |
| Attached ADU | 400–800 sq ft | Pricing locked — unlock to view |
Pricing is unlocked per project
Share a few details and we'll send Orange County Construction ADU Contractor's pricing for your build.
Services Orange County Construction ADU Contractor offers
- Detached ADUs
- Attached ADUs
- Garage Conversions
- Junior ADUs (JADU)
- Permitting
What Orange County Construction ADU Contractor 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 Orange County Construction ADU Contractor
Orange County Construction did an amazing job on remodeling our home in Anaheim, CA. Keith never once lied to us and was easy to work with. Our neighbors love our new home! 5 stars for sure!
Orange County Construction added an ADU addition to our home. From designing plans to finished construction, they were organized and Keith communicated very well with us. The gorgeous new ADU exceeded our expectations!
We hired Orange County Construction to renovate our master bathroom in Orange, CA. They did an amazing job installing new tile, fixtures, lighting and more. Our home remodeling project was executed with precision and care. We're thrilled with how our bathroom was transformed. Their team is professional and the customer service was amazing and friendly.
Amazing experience. He's a man of his word, and doesn't give you the "used car salesman" pitch. He works right along side his crew, and knows all of the in's and out's of his job. His sub contractors are clean and thorough as well. I had 4 contractors bid my ADU job, and awarded it to Keith because he gave everything to me straight, and put all of the numbers in front of me before we signed the contract. Great guy, and a hard worker.
Frequently asked questions about Orange County Construction ADU Contractor
What does Orange County Construction ADU Contractor offer?
Orange County Construction ADU Contractor is a full-service ADU builder serving Anaheim, CA, handling design, permitting, and turnkey construction for detached ADUs, attached ADUs, garage conversions, and junior ADUs (JADUs). Orange County Construction ADU Contractor holds a 5.0-star rating across 13 verified homeowner reviews.
Is Orange County Construction ADU Contractor licensed and insured?
Yes. Orange County Construction ADU Contractor holds an active CSLB license (950616), classified B - General Building Contractor, and is bonded and insured.
How much does Orange County Construction ADU Contractor charge to build an ADU?
Orange County Construction ADU Contractor 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 Orange County Construction ADU Contractor's exact, no-obligation estimate for your lot.
What areas does Orange County Construction ADU Contractor serve?
Orange County Construction ADU Contractor builds ADUs in Anaheim, Huntington Beach, Costa Mesa, Fullerton, Newport Beach, Orange County.
How long does Orange County Construction ADU Contractor 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. Orange County Construction ADU Contractor confirms a timeline for your specific project during the feasibility consultation.
How do I get a quote from Orange County Construction ADU Contractor?
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 Orange County Construction ADU Contractor, and set up your free feasibility consultation — no obligation.
Where Orange County Construction ADU Contractor works
- City Building & Safety
- Planning Department
- Permit Center
Pre-ADU Checkup — $499 — Get finalized permits, a pre-ADU checklist, and an on-site feasibility visit. Homeowners save $1,000s by doing this before engaging a contractor.