ADU Design, Permitting & Construction in Bellingham, Washington
Our Process
Know what happens next and why it matters. Our team helps Whatcom County homeowners work through the decisions, approvals, and practical details that turn an idea into a buildable plan.
From, “What if?” to, “Welcome home.”
Each stage answers a different question: Is this the right fit? What can the site support? What should we build? And how do we bring it to life?
1.
Book a 20-minute consultation
Share your family’s goals and your questions about building an ADU. We’ll talk about what you hope to create and whether a property review is the right next step.
2.
Explore your property and goals
Explore access, utilities, site conditions, and the local rules that may affect your property. Feasibility needs to be considered before a design is treated as buildable.
3.
Plan and design together
Develop the ADU layout, materials, and details around your family’s priorities. Work through scope, budget considerations, and the permitting needed before construction.
4.
Build with care
Move from approved plans into construction, with clear communication about decisions and progress. Thoughtful craftsmanship brings the design into everyday life.
The People Behind the Process
A building process starts with a relationship.
Before you choose a team to build on your property, get to know the people behind it. Meet Daisy and Mark, and learn more about Oshn Design’s approach to listening, clear communication, and thoughtful craftsmanship.
“They truly delivered on their promises and exceeded expectations.”
Tannis P
Google review · ★★★★★
You know why you want to build. We’ll help with how.
Maybe it’s bringing a parent closer, helping an adult child establish a home, or making better use of the land you hope to pass on. You don’t have to navigate the building decisions alone. Start with a conversation about your family and property, then explore a practical path toward a home with value beyond the first move-in.