ADU Construction & Garage Conversion Experts in Los Angeles

Build a new ADU or convert your garage into a legal, income-producing living space — designed, permitted, and built by professionals.

At Morrison Construction, we specialize in building high-quality Accessory Dwelling Units (ADUs) and garage conversions across Los Angeles. Whether you’re looking to create a rental unit, guest house, or additional living space, our team handles everything from design and permits to full construction.

We understand California ADU regulations, zoning requirements, and city inspections — helping you avoid delays and costly mistakes. From detached ADU new builds to converting existing garages into fully functional living spaces, we deliver smart layouts, modern finishes, and long-term value for your property

ADU Contractor

Our ADU Contractor Builder Expertise

1 - What does an ADU contractor do in Los Angeles?

An ADU contractor in Los Angeles handles the entire process of building an accessory dwelling unit, including design, planning, permits, and construction. At Morrison Construction, we manage everything from garage conversions to new detached ADU builds, ensuring full compliance with California building codes and local zoning regulations.

Both options have advantages. Garage conversions are typically faster and more cost-effective since the structure already exists. New ADU construction allows for more flexibility in design, layout, and size. Our team helps homeowners in Los Angeles choose the best solution based on budget, property layout, and long-term goals like rental income or family use.

The timeline depends on the project type. Garage conversions can take approximately 3–5 months, while new ADU construction may take 6–9 months including permits and inspections. We streamline the process by handling design, approvals, and construction efficiently to avoid unnecessary delays.

Yes. We take care of all permits, plans, and city inspections required for ADU construction in Los Angeles. Our experience with local regulations helps ensure your project is approved quickly and built to code without complications.

ADU costs vary depending on size, design, and whether it’s a new build or garage conversion. On average, projects can range from $100,000 to $300,000+. We provide detailed estimates based on your specific property and goals, ensuring full transparency from the start.

Yes, Many homeowners in Los Angeles build ADUs to create rental income, increase property value, or provide housing for family members. A well-designed ADU can generate significant monthly income depending on location and size.

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Start Your ADU or Garage Conversion Project with Confidence

Whether you’re planning a new ADU build or a garage conversion, Morrison Construction helps you turn your property into a functional, income-producing living space. From design and permits to construction and final inspections, we handle the entire process with clear communication, quality workmanship, and full attention to local Los Angeles requirements.

Qualities

What sets us apart

Morrison Construction
Family owned and operated Construction company serving Los Angeles County and nearby areas