Licensed contractor (LIC #1144365) serving Walnut Creek, CA and surrounding areas.
At MCH Construction Inc (LIC #1144365), we specialize in professional ADU construction in Walnut Creek, CA and surrounding areas, helping homeowners maximize their property with functional and high-value living spaces. With over 12+ years of experience, we design and build Accessory Dwelling Units (ADUs) tailored to your needs, whether for rental income, guest housing, or extended family.
Our ADU construction services include detached ADUs, attached ADUs, garage conversions, and backyard units. We use high-quality materials, modern building techniques, and energy-efficient solutions to ensure every ADU is durable, comfortable, and compliant with California regulations.

As a licensed general contractor in California, we handle every phase of the ADU project—from planning and permits to construction and final finishes. Our team ensures proper layout design, structural integrity, and smooth execution while meeting all local building codes and zoning requirements.
We proudly serve Walnut Creek, CA and nearby cities including San Ramon, Lafayette, Berkeley, Orinda, Alamo, Emeryville, and Danville, delivering reliable and efficient ADU construction services. Our goal is to create additional living space that increases your property value and enhances functionality.
Ready to build your ADU? Contact MCH Construction Inc today for expert ADU construction in Walnut Creek, CA. Call (415) 529-8003 or (925) 262-5035 to request your free estimate and start your project with a trusted, licensed contractor.

Looking for a licensed contractor you can trust? Contact MCH Construction Inc today to discuss your project, request your estimate, and connect with our team for fast, reliable service in Walnut Creek, CA.