In the heart of Orange County, homeowners are discovering a smart and stylish way to increase property value, generate rental income, and house loved ones — all without buying a new property. Welcome to the world of ADUs (Accessory Dwelling Units). Whether you call it a granny flat, in-law suite, or backyard cottage, ADUs are reshaping what it means to live and invest in Southern California.
At OC Trust Remodeling, based in Mission Viejo, we’ve helped countless homeowners turn underused spaces into beautiful, functional ADUs that serve a wide variety of needs. If you’ve ever wondered how an ADU could work for you, this guide will walk you through the benefits, design ideas, building process, and why OC Trust Remodeling is your local expert in creating custom ADU solutions.
An Accessory Dwelling Unit (ADU) is a secondary residential unit built on the same lot as an existing single-family home. It can be attached to the main house (like a garage conversion), detached (like a backyard unit), or even a converted basement or attic. Thanks to California’s updated housing laws, building an ADU in Mission Viejo is more accessible than ever.
Mission Viejo is known for its family-friendly neighborhoods, great schools, and peaceful suburban living. Building an ADU here can enhance your lifestyle while offering significant financial benefits.
With high rental demand across Orange County, an ADU can provide steady monthly income. Whether you list it on Airbnb or rent to a long-term tenant, it’s a great way to make your home work for you.
ADUs are ideal for aging parents, adult children, or visiting relatives. They allow loved ones to stay close while maintaining independence and privacy.
Adding an ADU can boost your home’s value by 20–30% depending on size, quality, and market conditions. It’s an investment that pays for itself over time.
An ADU isn’t just for tenants or family — it can be a home office, art studio, gym, or guest house. The flexibility is what makes it so valuable.
At OC Trust Remodeling, we believe every ADU should be as unique as the people living in it. We help you design a unit that not only matches the style of your home but also maximizes comfort and function.
Here are a few design ideas trending in Mission Viejo:
Sleek lines, neutral colors, and open layouts. Add large sliding doors for indoor-outdoor flow — a must for sunny SoCal living.
Think white siding, shiplap walls, and matte black fixtures. Perfect for that cozy but contemporary charm.
Solar panels, reclaimed materials, low-flow fixtures, and natural ventilation. A smart option for eco-conscious homeowners.
High-end finishes, a private patio, a kitchenette, and spa-like bathrooms make guests feel like they’re at a boutique hotel.
Building an ADU involves permits, design, construction, and inspections — but you don’t have to manage it all yourself. At OC Trust Remodeling, we take care of everything from start to finish.
We start by understanding your needs and inspecting your property. We’ll review your goals, budget, and timeline.
Our design team creates floor plans tailored to your space, style, and city regulations. You’ll see 3D renderings before construction begins.
Navigating permits can be a headache, but we handle it for you. We’re familiar with Mission Viejo’s zoning laws and ADU codes, ensuring compliance every step of the way.
From foundation to final finishes, our skilled crew gets to work. We use high-quality materials, licensed contractors, and clear communication to keep the project on track.
Once construction is complete, we walk you through the space, address any last details, and ensure you’re thrilled with the result.
“OC Trust Remodeling helped us convert our old detached garage into a stunning ADU for my mother-in-law. It’s beautiful, cozy, and gives her independence while keeping us close. Highly recommend their team!”
— Lisa M., Mission Viejo
“I was nervous about the permitting process, but OC Trust handled it all. Our ADU is now a stylish Airbnb rental, and it’s bringing in income every month. A total win.”
— David B., Mission Viejo
In most cases, Mission Viejo allows:
From permitting to completion, the average timeline is 4 to 8 months, depending on complexity and approvals.
ADUs can share utilities with the main house or have their own meters — our team helps you decide what’s best.
We’re more than just contractors — we’re your trusted local remodeling experts in Orange County. Here’s why homeowners in Mission Viejo choose us for their ADU projects:
We know Mission Viejo’s building codes, permit requirements, and HOA regulations like the back of our hand.
From design to construction, we’re with you every step. No outsourcing, no confusion — just one reliable team.
Your ADU should reflect your vision. We create functional, stylish, and energy-efficient spaces you’ll love for years to come.
No hidden costs or surprises. Just honest work, fair pricing, and quality craftsmanship.
Whether you’re looking to generate income, house family, or expand your living space, an ADU offers the perfect blend of flexibility, value, and opportunity. And with OC Trust Remodeling by your side, you’re in expert hands.
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