Remodeled kitchen with sage green cabinets and wood island, viewed from the dining room, by Tweto Architecture

Tailored Spaces.High-Performance Homes.Architecture That Works.

Tweto Architecture is a residential architecture practice in Portland, Oregon. We design new homes, remodels, and ADUs across the Pacific Northwest.

Licensed   Oregon & Washington Services   New Homes · Remodels · Additions · ADUs
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Services: What We Do

We design high-performance new homes, remodels, and ADUs. We are based in Portland and our service area extends across Oregon and Washington.

New Homes

A new home is a chance to get everything right, tailored to exactly how you want to live, your site, and your performance goals. We consider climate, views, natural light, and connections to the surroundings to create homes that feel like they belong. Our background in both design and construction results in refined, practical, and buildable designs.

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Remodels & Additions

If you love where you live and mostly love your home, a remodel or addition can unlock its full potential. We solve the problems that keep you from fully enjoying your home, while maintaining the character that keeps you there. Remodels are an opportunity to improve comfort, performance, and durability.

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ADUs

We love the challenge of ADU design, with all the elements of a new home in a small space. We have experience with the unique requirements of ADU design: efficiency, context, privacy, and zoning. ADUs are a great way to add flexible living space and value to your property.

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ADU framing under construction, showing wood structure and gable roof taking shape, by Tweto Architecture

About Tweto Architecture

We are a residential practice in Portland, Oregon, focused on remodels, additions, ADUs, and new homes. We design spaces that fit how you live, detail them to last, and work to advance each project toward sustainability. Asmund Tweto founded the practice in 2017 and works directly with each client from first conversation through construction.

About the Practice
"Asmund has a deep understanding of the built environment and how to make small spaces really work. We appreciated his attention to detail and hands-on approach through the life of the project, including throughout construction."
Charlie, ADU Client

Process: How We Work

A successful project depends on a great process: careful listening, clear communication, and respect for the project team.

Listen

Each project starts with careful listening in order to fully understand your goals, project site or existing home, and budget. We also survey the regulations that affect your project so we know what is possible early.

Design

From programming through construction documents, we have formed a streamlined design process that is flexible, invites feedback, defines decisions, and clearly shows you what your space will look and feel like.

Permit

We will work with your jurisdiction to secure necessary land use approvals, building permits, and other jurisdictional reviews. The thorough documentation we provide streamlines the permitting process.

Guide

We offer construction guidance and supervision; we can guide bidding and contractor selection and provide supervision during construction to ensure the project is proceeding as designed.

Considering a project?

We usually start with a conversation to see if it's the right fit. If it seems right, we'll arrange a visit to your home or property to learn more.

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