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Since its foundation, over 150 year ago, Mosaic Lodge #218 has been a beacon to men of all walks of life.
Special traits and aspirations that today characterize our Lodge:
To be a better man, to love his family, to be a good neighbor, to assist his fellow creatures, to serve his community, to honor his country, to promote freedom and justice for all, to sponsor strong education, to support young men and women so they too become good citizens and successful persons, and all this under the auspices of the Supreme Architect of the Universe.
Your interest in Masonry has brought you to the right place. You have just arrived to where your questions about Masonry can be answered by a Mason without prejudice.
Stated Meeting – First Wednesdays of every month at 7:00 PM.
Mosaic Lodge’s mission is to promote personal growth and improve the lives of others. We take responsibility for the well-being of our brothers, our families, and the community as a whole. We value respect, kindness, tolerance, and our differences – religious, ethnic, cultural, generational, and educational, and strive for harmony in our individual lives, in our lodge, and in the global community.
Masonry is a community of men and their families who share similar beliefs and values. The fraternity finds it important to connect with other men of honor, compassion, love, trust, and knowledge, regardless of their race, color, religious beliefs, political views, sexual orientation, physical ability, citizenship, or national origin. We are friends and brothers, and are connected through this vital and uplifting organization of moral men.
Our continuing pursuit of truth, knowledge, ethics, and leadership skills makes us better men and brings more meaning to our lives. Learning the tenets of Freemasonry, paired with being an active part of our community, gives us the opportunity to develop leadership and organizational skills, and builds self-discipline through commitment and self-confidence.
As a member of the Freemasons, the Grand Lodge of California, and Mosaic Lodge No. 218, we are a part of a worldwide organization that values tradition, history, and timeless wisdom. The traditions and core values of our fraternity are meaningful today and will endure for centuries to come because of our direct impact in our community, through our charities, and on a personal level.
Mosaic Lodge membership is open to men 18 and older who meet the qualifications and standards of character and intention, and who believe in a Supreme Being. Men of all ethnic and religious backgrounds are welcome.
One of Freemasonry’s customs is not to solicit members – men must seek membership on their own initiative. Anyone is welcome to request information about the fraternity.
If you are interested in applying for membership to our lodge, now is a good time to start. Please contact us to schedule a visit during an event, or request more information.
Contact usDecember 2, 2025
Mosaic #218 - Officers Meeting/Practice Retiring the flag
December 2, 2025 @ 7:00 pm - 8:00 pm
December 3, 2025
Mosaic #218 - Stated Meeting Dress: Coat and Tie
December 3, 2025 @ 7:00 pm - 8:00 pm
December 8, 2025
Building Association Meeting
December 8, 2025 @ 7:00 pm - 8:00 pm
December 9, 2025
DOSI - Castro Valley - Holiday dinner - 7 toasts. Guest speaker TBD
December 9, 2025 @ 7:00 pm - 9:00 pm
December 20, 2025
Mosaic #218 - Installation of Officers
December 20, 2025 @ 10:00 am - 12:00 pm
December 21, 2025
Mosaic #218 - Breakfast with Santa
December 21, 2025 @ 9:00 am - 10:00 am
January 6, 2026
Mosaic #218 - Officer meeting
January 6, 2026 @ 7:00 pm - 8:00 pm
January 7, 2026
Mosaic #218 - stated meeting
January 7, 2026 @ 7:00 pm - 8:00 pm
January 12, 2026
Building Association Meeting
January 12, 2026 @ 7:00 pm - 8:00 pm
January 13, 2026
DOSI - Livermore - Dinner
January 13, 2026 @ 6:30 pm - 7:30 pm
January 13, 2026
DOSI - Livermore - Stated meeting order of business, charges, calendars, review of SOI's for the year, budgets, 1st degree opening, and presenting the flag & GLO.
January 13, 2026 @ 7:00 pm - 9:00 pm
January 31, 2026
Mosaic #218 - Sweethearts Luncheon
January 31, 2026 @ 11:00 am - 2:00 pm
February 3, 2026
Mosaic #218 - Officer meeting
February 3, 2026 @ 7:00 pm - 8:00 pm
February 4, 2026
Mosaic #218 - stated meeting
February 4, 2026 @ 7:00 pm - 8:00 pm
February 9, 2026
Building Association Meeting
February 9, 2026 @ 7:00 pm - 8:00 pm
February 10, 2026
DOSI - Pleasanton - dinner
February 10, 2026 @ 6:30 pm - 7:00 pm
February 10, 2026
DOSI - Pleasanton - GLO presentation, balloting, candidate proficiencies and review.
February 10, 2026 @ 7:00 pm - 9:00 pm
March 7, 2026
Mosaic #218 - St. Patrick's Day Dinner
March 7, 2026 @ 6:00 pm - 9:00 pm
March 10, 2026
DOSI - Castro Valley - Dinner
March 10, 2026 @ 6:30 pm - 7:00 pm
March 10, 2026
DOSI - Castro Valley - 1st degree, no opening, and Long Form close.
March 10, 2026 @ 7:00 pm - 9:00 pm
March 31, 2026
Mosaic #218 - Officer meeting
March 31, 2026 @ 7:00 pm - 8:00 pm
April 1, 2026
Mosaic #218 - stated meeting - Official visit from Inspector
April 1, 2026 @ 7:00 pm - 8:00 pm
April 13, 2026
Building Association Meeting
April 13, 2026 @ 7:00 pm - 8:00 pm
April 14, 2026
DOSI - Danville @ Pleasanton - Dinner
April 14, 2026 @ 6:30 pm - 7:00 pm
April 14, 2026
DOSI - Danville @ Pleasanton - 2nd Degree 1st section and opening
April 14, 2026 @ 7:00 pm - 9:00 pm
May 12, 2026
DOSI - Livermore - 2nd Degree 2nd section and Long Form close
May 12, 2026 @ 7:00 pm - 9:00 pm
June 9, 2026
DOSI - Pleasanton - 3rd Degree 1st section and opening
June 9, 2026 @ 7:00 pm - 9:00 pm
June 20, 2026
Mosaic #218 - St John's Feast - Masons only
June 20, 2026 @ 6:00 pm - 9:00 pm
July 14, 2026
DOSI - Castro Valley - 3rd Degree 2nd section and Long Form closing
July 14, 2026 @ 7:00 pm - 9:00 pm
August 4, 2026
Mosaic #218 - Officer meeting
August 4, 2026 @ 7:00 pm - 8:00 pm
August 5, 2026
Mosaic #218 - stated meeting
August 5, 2026 @ 7:00 pm - 8:00 pm
August 10, 2026
Building Association Meeting
August 10, 2026 @ 7:00 pm - 8:00 pm
September 1, 2026
Mosaic #218 - Officer meeting
September 1, 2026 @ 7:00 pm - 8:00 pm
September 2, 2026
Mosaic #218 - stated meeting
September 2, 2026 @ 7:00 pm - 8:00 pm
September 14, 2026
Building Association Meeting
September 14, 2026 @ 7:00 pm - 8:00 pm
September 15, 2026
DOSI - Danville @ Pleasanton - Dinner
September 15, 2026 @ 6:30 pm - 7:00 pm
September 15, 2026
DOSI - Danville @ Pleasanton - Flag/GLO/elections/GL structure/AnCom legislation
September 15, 2026 @ 7:00 pm - 9:00 pm
September 19, 2026
Mosaic #218 - Rib Cook-off
September 19, 2026 @ 6:00 pm - 9:00 pm
October 6, 2026
Mosaic #218 - Officer meeting
October 6, 2026 @ 7:00 pm - 8:00 pm
October 7, 2026
Mosaic #218 - stated meeting
October 7, 2026 @ 7:00 pm - 8:00 pm
October 12, 2026
Building Association Meeting
October 12, 2026 @ 7:00 pm - 8:00 pm
October 13, 2026
DOSI - Livermore - Dinner
October 13, 2026 @ 6:30 pm - 7:00 pm
October 13, 2026
DOSI - Livermore - "Can't miss stated meeting", alcohol rules, Guest Speaker TBD
October 13, 2026 @ 7:00 pm - 9:00 pm
October 24, 2026
Livermore Downtown Trick or Treat
October 24, 2026 @ 10:00 am - 1:00 pm
November 3, 2026
Mosaic #218 - Officer meeting
November 3, 2026 @ 7:00 pm - 8:00 pm
November 4, 2026
Mosaic #218 - stated meeting
November 4, 2026 @ 7:00 pm - 8:00 pm
November 9, 2026
Building Association Meeting
November 9, 2026 @ 7:00 pm - 8:00 pm
November 10, 2026
DOSI - Pleasanton - Dinner
November 10, 2026 @ 6:30 pm - 7:00 pm
November 10, 2026
DOSI - Pleasanton - Installation, calendar/budget/committees/officer duties review
November 10, 2026 @ 7:00 pm - 9:00 pm
Discuss your Masonic experience with others easily by downloading the simple guide to Freemasonry and brushing up on the basics.
Maybe you’ve seen the square and compass logo on buildings around town or wondered about the meaning of emblems like the Masonic trowel. What’s the history behind Masonic symbols, and how do they factor into what happens in a lodge?
In our latest online feature, explore historical Masonic landmarks of San Francisco!
This year, the Grand Lodge of California is working to uncover more local history contained within the small Jamestown Masonic Cemetery.
Masonry has played a crucial role in almost every stage of San Francisco’s development.
Members take their promises as Masons on sacred book, often a Masonic Bible. Its rituals have frequent references to God. Their meeting places are often called Masonic temples. So if it isn’t a religion, why is religion such a feature of Freemasonry?
A new program from the California Masonic Foundation is introducing students to careers in green tech through Cal EPIC.
The Masonic Ritual is the heart of Freemasonry. And at the center of the ritual is drama. it’s no wonder Masons go to such lengths to put on an unforgettable show.
We’re taking a deep dive into the many ways that Masonry and performance collide.
Let’s show the world what Masonry looks like in action—because #WeAreMasons, and together, we make a difference.
In this issue of California Freemason, we’re celebrating 175 years of incredible Masonic history in this state.
Say hello to a series of brand-new web resources for prospects and new members available on freemason.org, the online home of the Masons of California.
Mosaic Lodge will be marching in the June 8th Rodeo Parade again this year! We plan to meet at the Lodge at 9:00 for juice and donuts/bagels, then walk together to our designated starting point, planning to be there by 9:45. You may also just join us at our assembly point, 4th and L Street. […]
