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Citizens Coordinate for Century 3 (C-3) has a rich history of advocacy and civic participation in the San Diego region. The organization was founded in 1961 by Lloyd Ruocco and Esther Scott with the support of Hamilton Marston and Ellen Revelle. Their objectives were to conserve and promote "a handsome & functional community" through research, education, and coordinated citizen action.

In its almost 60 years of existence, C-3 has worked with its all-volunteer Board of Directors and members to promote principles of good design and planning to achieve a healthy environment, strong economy, and social progress in the San Diego/Tijuana region. Exemplary projects include advocating to stop the expansion of Highway 163, expand public park space on the waterfront, and protect County environmental lands from encroaching development. 

C-3 has consistently organized monthly Breakfast Dialogues for decades exploring themes of a healthy environment, good design, transparent civic participation, and access to open space. 

C-3's strategy for preserving its own legacy and ensuring its future is founded on its commitment to membership, partnership, and visibility. C-3's members are among the most informed and influential citizens in the region, and this organization is committed to supporting and strengthening its membership by directly engaging members in its important work. C-3 also knows it can't do it alone and works closely in partnership with other organizations aligned with its mission. Finally, C-3 honors its near 60 year history by striving to become a more visible and effective advocacy organization. 


C-3 is dedicated to preserving and improving our region's built and natural environments. Our objective is to influence critical policy, planning, and design issues through education, empowerment, and advocacy.

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858.633.3860  |  c3sandiego@gmail.com

2127 Olympic Parkway

Suite 1006

Chula Vista, CA 91915


Citizens Coordinate for Century 3 (C-3) is a 501(c)3 non-profit organization dedicated to education and advocacy on issues of policy, planning, and design throughout the San Diego region. Federal Tax ID: 95-2593199

C-3 Bylaws

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