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Lars Langberg Architects

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108 Petaluma Ave
Sebastopol, CA 95472

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Lars Langberg Architects was founded in Sonoma County by Lars in 2003 after he relocated with his family from San Francisco. The storefront office was established in Sebastopol five years later, and the firm enjoys their location in the center of the bustling west county town. As business grew and opportunities expanded, a second location in Denver, Colorado was added in 2017.

At Lars Langberg Architects the design process is explored through context, common sense, and collaboration: context of the needs of the client and the character of the site; common sense through wise use of resources, careful siting, and overall sustainable building principles; and collaboration through listening and open communication with clients, builders, and consultants. By following these principles, we create truly satisfying projects of lasting comfort and beauty.

Lars Langberg Architects has become a signatory to the AIA 2030 Commitment, joining more than 700 firms and organizations worldwide. This initiative encourages architects to strive to create carbon neutral buildings by the year 2030. ⁠

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