Tam Junction

In early 2025, the Marin County Board of Supervisors made Community and Economic Vitality one of their six priorities, with a focus on supporting a strong, diverse local economy.  The Tam Junction and Manzanita areas combine to create a commercial hub in the unincorporated area of Marin and are an important element of Marin’s economy, particularly to the Tamalpais Valley community.  

The study’s purpose is to create a thriving, vibrant, and sustainable Tam Junction. The study will address community priorities around issues like community vitality, safety, circulation and access, and resiliency. The County will work with an outside agency to design a hands-on community engagement process so residents, businesses, and other stakeholders can share ideas and work together to ensure a sustainable, equitable, and vibrant Tam Junction. 

The study boundary encompasses the unincorporated Tam Junction, Manzanita, and Shoreline commercial hub areas, as well as the Almonte Boulevard corridor from its intersection with State Route 1 and eastward to the Mill Valley city limits at Miller Avenue. 

The Tamalpais Area Community Plan is the policy document for land use and zoning for the area. Its primary goals are the conservation of the semi-rural, small-town residential and commercial character and to limit commercial development to resident serving uses while protecting its relationship to the surrounding natural environment. While the community plan will not be updated as part of this project, the study will likely include options for potential changes to be carried out in the future.  

2027

• 1/20/2027: (Tentative) Tam Design Review Board agenda item to discuss the Tam Junction Placemaking Study Request for Proposal draft scope of work. 
• 1/21/2027: (Tentative) Parks and Open Space Commission agenda item to discuss the Tam Junction Placemaking Study Request for Proposal draft scope of work

2026

• ITEM CANCELLED: 11/4 Tam Design Review Board item meeting to discuss the Tam Junction Placemaking Study Request for Proposal draft scope of work has been cancelled and will be rescheduled. The Tam DRB meeting is not cancelled. 
  • Meeting notice (item cancelled)
• View the webinar and summary of public comments held on August 5, 2026, that introduced the Tam Junction Placemaking Study
• 5/6/2026: staff attended the Mill Valley Shoreline Adaptation Open House to answer your questions and talk about the Tam Junction Placemaking Study
• 4/1 and 4/15/2026: Staff introduced the study to the  Tam Design Review Board on 4/1 and the Tamalpais Community Services District (CSD) on 4/15.
  • Read a summary of public comments from those two meetings
  • Open the slide deck from the 4/1 Tam Design Review Board meeting.
  • Open the slide deck from the 4/15 Tamalpais CSD meeting.

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