Learn More About Garage Conversion to ADU in Orange County, CA
Thinking about converting your garage into an ADU?
Thinking about converting your garage into an ADU? You’re not alone. Garage conversions are one of the most popular—and cost-effective—ways to add livable space to your property in Orange County. Whether you're creating a rental unit, a guest suite, or a space for extended family, converting your garage is a smart way to unlock your home's potential without building from the ground up.
At ADUs by Avatar, we specialize in transforming garages into beautiful, fully compliant accessory dwelling units (ADUs). From planning and permitting to construction and final inspection, we guide you through every step of the process with clarity and expertise.
Quick Tips & Requirements for Garage ADUs in Orange County
✅ No Parking Replacement Required (in most cases)
Thanks to updated California ADU laws, you may not need to replace the parking your garage once provided—especially if your home is within half a mile of public transit.
✅ Minimum Ceiling Height & Egress Rules
Converted garages must meet California Residential Code standards for ceiling height (at least 7 feet) and emergency exits (egress windows or doors in sleeping areas).
✅ Fire Separation & Insulation
You’ll likely need to add proper fire-rated assemblies and upgrade insulation to meet energy efficiency and safety requirements—especially if the garage shares a wall with your main home.
✅ Foundation & Structural Upgrades
Older garages often need slab reinforcement or structural improvements to meet current building code standards for ADUs.
✅ Utility Tie-Ins
Electrical, plumbing, and sewer connections will need to be brought up to code. In many cases, separate meters are optional but not required.
Is Your Garage a Good Fit?
Garage conversions are ideal for properties with existing attached or detached garages in residential zones. Most cities in Orange County follow California’s streamlined ADU regulations, but each city may have unique plan check, design, and inspection requirements. That’s why we always start with a detailed feasibility study to assess your garage and identify any red flags before you commit.
Ready to Start?
We're Here to Help
//Converting your garage into an ADU can add serious value and versatility to your property. Let us help you navigate the rules, permits, and design decisions to make the process simple and stress-free.