
ADU / Garage ConversionCosta Mesa, CA 92628
Modern Build offers adu / garage conversion services in Costa Mesa, CA 92628
Get a Free EstimateADU & GARAGE CONVERSION SERVICES
Garage Conversion Contractor in Costa Mesa, CA 92628
Modern Build transforms unused garages into permitted, fully functional ADUs in Costa Mesa, CA 92628. Whether you’re adding a rental unit, home office, or guest house, we handle the entire process from planning to construction.
Our ADU conversions in Costa Mesa are tailored to your goals and comply with all zoning, building, and safety regulations — ensuring long-term value and peace of mind.
Free Consultation
(323) 300-4130

Why Homeowners Choose Us
Trusted Experts in ADU / Garage Conversion
We welcome change orders and mid-project adjustments with clear pricing and transparent change logs.
Backed by hundreds of verified 5-star reviews on Google, Yelp, and Houzz, we’re one of California’s most trusted remodeling teams.
What’s Included in Your Costa Mesa ADU Conversion?
From garage to high-functioning living space in Costa Mesa, CA 92628.
Garage-to-Living Space Conversion
Custom Floorplans & Design
Plumbing & Electrical Installation
Framing, Drywall & Insulation
City Permits & Compliance
Energy-Efficient Windows & HVAC
Licensed & Insured Construction
Financing Options Available
ADU BUILDERS IN Costa Mesa, CA
Why Convert Your Garage in Costa Mesa, CA 92628?
Garage and ADU conversions are the smartest way to expand livable space and boost property value in Costa Mesa, CA. Whether it’s for rental income, multigenerational living, or personal use, our team delivers turn-key ADU solutions that meet city code.
From initial zoning checks to final inspections, we make sure your Costa Mesa ADU project is legal, functional, and built to last.
Our Process
Step-by-step from concept to completion
Free Property Assessment
We inspect your garage in Costa Mesa, CA 92628, review local ADU zoning rules, and confirm feasibility based on your lot and layout.
Custom Design & Engineering
Our designers and engineers create a floorplan tailored to your goals, budget, and the existing structure in Costa Mesa.
Permit Approval & Construction
We handle all permitting and begin construction with licensed crews and weekly progress updates for your Costa Mesa, CA 92628 project.
Final Walkthrough & Move-In
After final inspection and occupancy approval, we walk through the completed ADU with you to ensure full satisfaction in Costa Mesa.
Why We Love Working in This Area
Homeowners in 92628, CA Trust Us
Costa Mesa, CA 92628 supports PO Box addresses within the broader Costa Mesa community. While not a residential hub itself, it plays a role in communication for nearby neighborhoods. Modern Build Home Remodeling serves homeowners throughout the Costa Mesa region with expert remodeling solutions that combine creative layouts, premium materials, and efficient permitting processes. Our experience in this city ensures beautiful, code-compliant results from start to finish.
A FUNCTIONAL SPACE YOU’LL LOVE
Turn Unused Space Into Value in Costa Mesa, CA 92628
ADUs in Costa Mesa are an ideal way to generate rental income, create privacy for guests, or build a flexible home office. Modern Build delivers compliant, energy-efficient, and stylish ADU conversions that elevate your property.
As your local garage conversion experts in Costa Mesa, we handle everything — from plans and permits to construction and finishes — with full transparency and guaranteed results.
Free Consultation
(323) 300-4130

Our Gallery
Explore some of the work we've done for our clients





















Rated 5.0 stars by homeowners in Costa Mesa, CA 92628. Trusted by over 18+ families this year.
We know what it takes to deliver stunning results in Costa Mesa.
FAQ
Answers to Your Most Common adu Remodeling Questions.
Other Services We Offer in Costa Mesa, CA
More Service Areas
Trusted by Homeowners Across Los Angeles
Consistent quality. Consistent 5-star ratings.






We’re here to help with all your home remodeling needs. Reach out for a free consultation or any inquiries you have about our services.
Free Consultation
(323) 300-4130Call us, it's free.
Our expert team has been serving Los Angeles and surrounding areas for over a decade. Whether you are looking to remodel your kitchen, bathroom, or entire home, we provide top-notch services to make your vision a reality.
Let’s start transforming your space into something amazing. Get in touch today to explore how we can bring your project to life.
Get in Touch with Us
Free Consultation Form