Detached ADUs
Standalone backyard units with private entries, kitchens, bathrooms, sleeping areas, and efficient storage.
Serving Orange County homeowners
ADU Construction in Orange County
Accessory dwelling units for family flexibility, rental potential, and long-term value
Apex Design Build & Remodel helps Orange County homeowners plan and build ADUs that feel intentional, code-conscious, and comfortable. We work throughout Irvine, Newport Beach, Laguna Beach, Mission Viejo, Rancho Santa Margarita, Tustin, Anaheim Hills, and nearby areas.
From detached backyard cottages to garage conversions and attached guest suites, we help you evaluate feasibility, design the space, coordinate construction, and create a finished unit that supports your family or investment goals.
Orange County Local
Local remodeling expertise across Orange County
We provide adu construction services throughout Orange County including Irvine, Newport Beach, Laguna Beach, Mission Viejo, Rancho Santa Margarita, Tustin, and Anaheim Hills. Every project is built around your home, your budget, and the way you want to live.
Irvine
Newport Beach
Laguna Beach
Mission Viejo
Rancho Santa Margarita
Tustin
Anaheim Hills
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ADUs planned around your property
Every lot is different. We look at access, utilities, setbacks, parking, privacy, existing structures, and the way the ADU should relate to the main home.
Garage conversions
Transform underused garage space into a livable studio, guest suite, office, or rental unit.
Attached ADUs
Add a connected but independent living area for relatives, guests, or flexible household needs.
2
Design-build support from concept to completion
ADU projects need careful coordination. We help homeowners in Irvine, Tustin, Mission Viejo, Rancho Santa Margarita, and Anaheim Hills move from early ideas into a realistic build plan.
Efficient interiors
Compact kitchens, bathrooms, laundry, built-ins, storage, and durable finishes for small-space living.
Utility coordination
Electrical, plumbing, HVAC, water heating, and practical tie-ins planned with the main property in mind.
Investment-minded finish planning
Materials and layouts selected for durability, comfort, maintenance, and long-term property value.
Our Process
A clear process from estimate to final walkthrough
Schedule your in-home consultation and get a practical remodeling plan before construction begins. Every step is organized around clear expectations, clean communication, and a finished space you feel good about.
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Step 1Feasibility review
We discuss your goals, review the property, and identify the most practical ADU path.
2
Step 2Design and scope
We define the layout, finishes, utility approach, and construction scope.
3
Step 3Construction coordination
Our team manages the build sequence and communicates clearly through each phase.
4
Step 4Move-in readiness
We complete the finish details so the ADU is ready for guests, family, work, or rental use.
Built for confidence
Why Orange County homeowners choose Apex
Apex Design Build & Remodel combines local project experience with a practical, conversion-focused process that keeps your remodel organized from the first estimate through the final detail.
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Licensed, Bonded & Insured
Work with a qualified remodeling team that treats your home and investment with care.
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Serving Orange County homeowners
Local project experience across Irvine, Newport Beach, Tustin, Mission Viejo, and nearby cities.
3
Custom remodeling solutions
Design and build plans tailored to your layout, goals, finishes, and budget.
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On-time & on-budget craftsmanship
Clear scheduling, proactive updates, and detail-focused construction from start to finish.
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Home Remodeling Orange County
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Kitchen Remodeling Orange County
Explore kitchen remodeling ideas that can inform compact ADU kitchen design.
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Frequently asked questions
What type of ADU can I build in Orange County?
Options may include detached ADUs, attached ADUs, garage conversions, and junior ADUs depending on your property and local requirements. Apex starts with a feasibility review.
Can an ADU be used for rental income or family housing?
Many Orange County homeowners build ADUs for extended family, guests, home offices, or rental flexibility. We help design the unit around your intended use.
Do you build ADUs in Irvine, Tustin, and Mission Viejo?
Yes. We serve Irvine, Tustin, Mission Viejo, Rancho Santa Margarita, Newport Beach, Laguna Beach, Anaheim Hills, and surrounding Orange County communities.
Schedule Your In-Home Consultation
Tell us what you want to improve, and Apex Remodeling will help you plan the next step with a clear, local, no-pressure estimate.