About Us

About Lafranchi Architecture and Development

Ken Lafranchi

A Passion for Building…

Lafranchi Architecture and Development was founded by Ken Lafranchi in 1992. Though he earned a degree in Architecture from the California Polytechnic State University at San Luis Obispo, instead of going directly into building design upon graduation, Ken decided to learn the subject “from the ground up”, and applied his energy to building construction.

…Aesthetic Value

After spending a year backpacking around the world and experiencing some of the world’s built masterpieces, Ken returned to pursue his passion for architecture and development. Like most successful architectural firms, the Lafranchi team believes that buildings are functional art, and seeks to design and develop structures that add aesthetic value to the community.

…Financial Value

Ken and his team feel that a building must provide a functional as well as aesthetic return for its owner’s investment.

…Community Value

Ken is a California native and lifetime Sonoma County resident. He currently serves as the Board Chairman for the Boys & Girls Clubs of Central Sonoma County and is an Executive Board Member of the Sonoma County Alliance.  Additionally he is a Board Member for both Cardinal Newman High School and the Sonoma County Alliance of Vineyards and Environment (SAVE).

Previously he has participated in Leadership Santa Rosa, served on the Steering Committee for the active 20/30 club and was a past Board Member of the United Way of the Wine County completing the Chairman of the Board term in 2008.

Ken is a licensed California Architect (LIC # C 23475) and General Building Contractor (LIC # B 568588)




Lori Tiedeman began her career with Lafranchi Architecture & Development in September of 2005. Prior to joining the company, her career spanned 28 years in Banking and Real Estate. Lori oversees all office operations and serves as Property Manager for the real estate investments of Lafranchi Architecture & Development. She is a licensed Real Estate Agent.

Lori is a native Santa Rosan and has served on the Board of Directors for R House of Santa Rosa and the Santa Rosa Junior College Bear Cub Athletic Trust Committee. She is also a past participant in Leadership Santa Rosa.


Gina Donaldson joined Lafranchi Architecture & Development in the fall of 2016. She has an appreciation for architecture and design and enjoys using her administrative and project coordination experience in this area. Gina has Sonoma County roots spanning four generations and has lived in Santa Rosa for 25 years, during which she has volunteered with numerous community organizations. She is a graduate of the University of California Santa Barbara.