Add rental income with custom ADU construction

We design, permit, and build ADUs in Orange County, handling local rules and zoning so you avoid delays and costly compliance mistakes.

Free estimate + 30-day price lock
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What McGee Construction clients say

“Larry McGee along with his family members and crew did an amazing job redoing my bathroom and updating my bedroom. They were clean and showed up on time! Always important for me. Very friendly and honest people to be working at your house. I highly recommend them.”

Lauri Sides

“Highly recommend. Larry, Cade, and David are great to work with, honest and fair people willing to go the extra mile for clients.”

Delaney Harris

“McGee Construction has completed multiple large scale home renovation projects for me and my clients recently and have done an amazing job. These were complex renovations and they provided top-level expertise in all project scope areas and very high quality work. Larry McGee is very responsive to my client's needs and as a Designer, I only want to work with responsive contractors like McGee Construction, who care about their clients, and who are committed to doing the job right. I look forward to working with them again on my next project and highly recommend them to others!”

Dee Wise
What we offer

Home remodeling and building services

From kitchens and additions to ADUs and whole-home remodels, we guide large Orange County projects with realistic planning, clear expectations, and local building expertise.

Whole-home remodel
Whole-home remodel

Rebuild your entire home with a clear plan, real costs, and city-ready drawings. Built for large projects over $200K with lasting value.

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ADU construction
ADU construction

Ground-up ADUs designed for rental or family use. We handle permits, layout, and build with Orange County code knowledge from day one.

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Home addition
Home addition

Add space that feels like it was always there. We plan structure, flow, and permits so your new rooms match your home.

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Kitchen remodel
Kitchen remodel

Upgrade your kitchen with better layout, storage, and finishes. Built as part of larger remodels for a clean, cohesive look.

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Not sure which project fits best?

Tell us your goals, budget, and timeline. We will guide you to the right option and give a clear next step with real numbers.

What is ADU build

Build an ADU That Actually Pays Off

ADU construction adds a second living space to your property. It works for homeowners who want rental income, family housing, or more flexibility. We guide you through zoning, permits, and feasibility in Orange County so your project is done right from the start.

  • Clear local guidance
    Orange County rules can be confusing. We know city codes, zoning, and permits. You get straight answers early, so you avoid delays, redesigns, and costly compliance mistakes.
  • Real income potential
    A well-built ADU can bring steady rental income. We help you plan for layouts and features that tenants want, so your investment performs over time.
  • Higher property value
    Adding a legal, high-quality ADU can raise your home’s value. Buyers see added space and income potential, making your property more attractive when it matters.
  • Flexible living space
    Use your ADU for family, guests, or a private office. You get a separate, functional space that adapts as your needs change over the years.
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What's Included

Full ADU Build From Plan To Finish

You get a full-service ADU build handled from start to finish. We plan, coordinate design, handle permits, and complete construction. Every detail is managed with Orange County rules in mind, so your new space is private, efficient, and built to work as a true second home.

  • Planning
    We review your property, goals, and budget to shape a clear plan. This includes site checks, feasibility, and early cost guidance so you know what’s realistic before moving forward.
  • Design coordination
    We work with designers and plans to create a layout that fits your property. The focus is on flow, function, and making the ADU feel like a complete, independent living space.
  • Permitting
    We handle city permits and approvals based on local rules. Our knowledge of Orange County codes helps avoid delays, corrections, and costly mistakes during the approval process.
  • Construction
    We build the ADU from the ground up, including foundation, framing, and interior work. Every step is managed so the final space is solid, finished, and ready to use.
  • Privacy
    We plan placement, entries, and layout to give both the main home and ADU proper separation. This helps create comfort and independence for whoever will live in the space.
  • Efficient layouts
    We design the space to make the most of every square foot. Smart layouts improve daily use, storage, and comfort without wasting space or overbuilding.
  • Separate utilities
    Where it makes sense, we plan for separate utility connections. This can support independent living and simplify future use, rentals, or shared property arrangements.

Build Your ADU With Confidence

Work with a team that knows Orange County ADU rules, permits, and zoning. We handle planning, design, and build from start to finish. Get a free estimate with a 30 day price lock and clear next steps.

Free ADU Estimate + 30 Day Price Lock

Build Your ADU with Confidence

Tell us about your ADU plans. We’ll review your property, zoning, and goals, then give you a clear estimate and next steps. You’ll hear back within one business day.

Hours of Operation

Mon-Fri: 9 AM - 5 PM
Sat-Sun: Closed

639 Maple Ave.
Brea, CA, 92821