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About Altstadt Interiors & Tana Mattson

When Tana Mattson founded her design business 1996, she sought a name that reflected her comprehensive design capabilities, interest in Historic Preservation, and heritage. German for Old Town, “Altstadt” perfectly embodied her initial vision—and remains relevant.

Not unlike an Old Town or historic city center, Altstadt Interiors harbors a distinctive blend of history, culture, and experience. Altstadt Interiors offers a complete range of design services as well as a balanced perspective on all facets of the industry.

Altstadt Interiors is broadening it's wings and opening it's doors to other interior designers to share the space for client meetings and product searches as Altstadt Interiors Co-op Interior Design Studio.

Tana Mattson founded Altstadt Interiors upon her graduation from The Art Institute of Seattle in 1995. Shortly after it’s conception, Tana recognized the potential for a consignment furniture shop that provides clients with a space to resell their old items and also lead new clients to unique, sustainable finds.

Altstadt Interiors Shop opened its doors in October 1996 and functioned as a storefront, design studio, and an endless exercise in demonstrating what Tana can do with limited space and a constantly revolving stock of mismatched pieces. Now 20 plus years later the shop has changed into a C0-0p Interior Design Studio. Tana recognized a change happening in the industry and with many more consignment shops appearing in the Seattle area found a way to reinvent the space to share it with other designers . Operating by appointment only allows Tana more time to spend with her clients, visit job sites and shop for clients.


Tana’s beloved companions Oscar and Preston are an integral part of her life and design business—you can often find one or both of them at the studio or riding along to a design appointment. Her love and experience with animals provides a keen ability to design around pets, family and children.

She is an active member of Historic Seattle, National Trust for Historic Preservation and a Member of the National Kitchen and Bath Association, NKBA and Northwest Society of Interior Designers

Altstadt Interiors Mission

Altstadt Interiors ensures that every design project, large or small, is executed with quality, integrity and personality. Tana believes everyone should have a beautiful home regardless of income levels. Home is so important these days and one should be able to come home to their sanctuary whatever that may be for them.

Our customer-focused approach to design accommodates a diverse range of styles and budgets, deriving inspiration from both the needs and vision of the client as well as the parameters and opportunities of the space.

Altstadt Interiors Vision

Altstadt Interiors strives to exceed the expectations of each customer and become a fixture in the Seattle Design Community through providing consistent, exemplary design; engaging clients in a collaborative relationship; and facilitating a higher quality of life through innovative design solutions.

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