
Design Build Contractor in Portland OR
At Marsh Design Build, we bring design and construction together under one roof — creating spaces that are intentional, functional, and built to last. From custom homes and ADUs to remodels and commercial tenant improvements, our Portland-based team manages every stage of your project with precision and care.

The Design Build Difference
Choosing a full-service design build contractor means one team handles it all — concept, design, and construction. This seamless approach saves time, reduces stress, and ensures every detail aligns with your vision.
One Team, One Vision
Our integrated process keeps communication clear and efficient, with designers and builders working side-by-side from start to finish.
Tailored to Your Needs
Whether it’s a modern ADU, a whole-home remodel, or a commercial improvement, we tailor every project to your lifestyle, goals, and budget.
Built for Portland Living
We understand the region’s architecture, permitting process, and environmental standards — ensuring your project is both beautiful and built to code.
Our Design Build Services
Choosing a full-service design build contractor means one team handles it all — concept, design, and construction. This seamless approach saves time, reduces stress, and ensures every detail aligns with your vision.
Why Clients Choose Marsh Design Build
Homeowners and business owners across the Portland–Vancouver metro area choose us for our transparency, craftsmanship, and hands-on project management.
Collaborative Process
We guide clients through each phase — from design and planning to construction and completion — with open communication and clear expectations.
Expert Craftsmanship
Our builds balance form and function. Every material and finish is selected for quality, beauty, and long-term value.
Local Expertise
We specialize in design build projects throughout Portland, Oregon and nearby areas like Beaverton, Tigard, and Lake Oswego — with a deep understanding of local codes, architecture, and neighborhoods.

