ADU Contractor in Orange County, CA

ABOUT

A construction worker wearing a yellow helmet and safety harness is working on a wooden framework of a building, seen through a viewing opening against a blue sky with some clouds.

MLR Construction Co. is a licensed ADU contractor serving Orange County, CA, helping homeowners add rental income, guest space, or multigenerational living through custom accessory dwelling units and garage conversions. We handle design, permits, and construction from start to finish.

ADU & Garage Conversion Services in Orange County

  1. Detached ADUs

  2. Attached ADUs

  3. Garage conversions

  4. Junior ADUs (JADUs)

  5. ADU additions & expansions

  6. Permit-ready ADU solutions

People-First Approach

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Reliability You Can Count On

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A Focus on Quality

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People-First Approach · Reliability You Can Count On · A Focus on Quality ·

Our ADU Construction Process

Side view of a building under construction with green sheathing, exposed wooden framing, and large windows under a partly cloudy sky.

1.Feasibility analysis & zoning review

2. Design & planning

3. Permits & approvals

4. Construction & inspections

5. Final walkthrough

  • "Their attention to detail and commitment to quality truly stood out. We’ve already recommended them to others."

    —Former Customer

  • "Communication was top-notch and the final outcome was even better than we imagined. A great experience all around."

    —Former Customer

  • "Every detail was thoughtfully executed. We're thrilled with the outcome."

    —Former Customer

Why Choose MLR Construction Co. for Your ADU?

  1. Licensed & insured general contractor

2. Experience with California ADU laws

3. Knowledge of Orange County zoning & permitting

4. Full-service ADU construction

5. Clear communication and timelines

MLR Construction Co. has experience building ADUs and garage conversions across Orange County cities, including Irvine, Anaheim, Newport Beach, and Costa Mesa. We stay current with local and state ADU regulations.

Contact Us Today