The Petaluma Masonic hall was built in 1881 and is a wonderful example of Victorian architecture in Sonoma County. Located at 9 Western Avenue, our historic clocktower has been a cornerstone of Petaluma city living from its erection in 1881. We invite you to join us the first Thursday of every month at 6:30pm for a family meal open to everyone, particularly traveling Brothers and those who have questions about Freemasonry or Petaluma history.