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Thomas V. Rengstorf Associates is a five person firm with experience in public and private projects of all sizes. TRA has developed a reputation for innovative design solutions, and creating landscapes that evoke a strong sense of place and meet the client's needs.

We achieve success by implementing our strengths, one of which is the personal involvement of key personnel with clients and communities. As a small firm, we strive to offer quality landscape architecture and personalized service, while closely monitoring budget requirements.

TRA is incorporated with one principal. Four individuals in the firm are registered Landscape architects in the States of Washington and Oregon.

TRA promotes sustainable methods by integrating water conservation, energy conserving design, the use of indigenous plants and recycled materials in uniquely designed environments. 


Thomas Rengstorf - Principal

Scott Evans

Lorraine Pai

Forrest Jammer

Cindy Martin

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