Add Space, Add Value with a Custom ADU
An accessory dwelling unit is one of the smartest ways to make your property work harder—whether you need a home for aging parents, a private space for a returning college grad, or a rental that helps offset the mortgage. At MN Construction, we design and build ADUs that feel like a natural extension of your home, not an afterthought bolted onto the backyard. As a family-run remodeling company, we treat your project with the same care we'd give our own.
Why choose MN Construction
- We're a family business, not a franchise. When you call us, you talk to the people actually doing the work. That means clear answers, honest timelines, and someone who remembers the details of your project.
- Local expertise with ADU rules. Building an ADU in walnut creek, CA comes with specific permitting, setback, and utility requirements. We handle the paperwork and inspections so you don't get stuck guessing what the city expects.
- Quality craftsmanship that lasts. From the foundation to the finishes, we build ADUs that hold up over time and match the look and feel of your existing home.
- Straightforward communication. No surprise charges buried in the fine print. We walk you through the plan, the schedule, and the costs before we ever pick up a hammer.
Our ADU process
- Consultation and site visit. We come out, look at your property, and talk through what you want—an attached unit, a detached cottage, or a garage conversion. We'll tell you honestly what's possible on your lot.
- Design and planning. We develop a layout that fits your goals and your budget, taking into account square footage limits, parking, and how the unit connects to utilities.
- Permits and approvals. We prepare and submit the plans to the city, coordinate with inspectors, and keep the project moving through each approval stage.
- Construction. Our crew builds the unit start to finish—framing, plumbing, electrical, insulation, drywall, and all the finishing touches. We keep the job site clean and keep you updated along the way.
- Final walkthrough. Before we call it done, we walk the finished ADU with you to make sure every detail meets your expectations and passes final inspection.
Throughout the build, you'll always know where things stand. If a question comes up, you can reach us directly at (925) 234-0835.
What you can build
Every property is different, and so is every ADU. Some homeowners want a compact one-bedroom detached unit tucked into the backyard, ideal for renting or hosting guests. Others prefer to convert an existing garage into comfortable living quarters, which can be a faster and more affordable route. Attached units that share a wall with the main house work well when yard space is limited. We'll help you weigh the tradeoffs—cost, timeline, privacy, and long-term use—so you land on the right fit for your family and your finances.
A well-built ADU does more than add a room. It creates flexible living space that adapts as your life changes: a rental today, an in-law suite tomorrow, a home office down the road. It can also add meaningful value to your property, which matters if you ever decide to sell. Our job is to make sure that investment is done right the first time.
Serving walnut creek, CA and nearby
MN Construction is proud to build ADUs for homeowners throughout walnut creek, CA and the surrounding communities. We know the neighborhoods, the local building climate, and the permitting process here, which helps us keep your project on track and free of unnecessary delays. Whether your home sits on a quiet residential street or a larger lot with room to spread out, we bring the same attention to detail and respect for your property to every job. If you've been thinking about an ADU in walnut creek, CA, we'd love to hear what you have in mind and help you figure out the best path forward.
Ready to get started?
Adding an ADU is a big decision, and you deserve a builder who listens first and builds second. At MN Construction, we take the time to understand how you'll use the space, what your budget allows, and what matters most to your family. Then we deliver a finished unit you'll be proud to show off—built to last and made to fit the way you live.
Give us a call at (925) 234-0835 to schedule your consultation. Let's talk about how a thoughtfully designed ADU can add comfort, flexibility, and lasting value to your home in walnut creek, CA.
