Welcome to Sudden Valley!

Administrative Office Hours

Located in the Welcome Center at 1850 Lake Whatcom Boulevard, the Administration office is open Monday through Friday, between 8:30 am and 4:30 pm for in person assistance; you can reach us by phone between 8:00 am and 5:00 pm at 360-734-6430.


Sudden Valley is proud of its community and offers activities for all ages and abilities, including the following amenities:

  • Welcome Center, housing Administration, Accounting, and Environmental Planning
  • Clubhouse, featuring El Agave Mexican restaurant and the Golf Course Pro Shop
  • Community Center, the hub of the Recreation Department, hosting a well-equipped fitness center, relaxation areas, children’s playroom, infant room, meeting rooms, event space, café, game lounge, and free wi-fi
  • Marina, featuring wet slips, dry slips, canoe and kayak storage, children’s playground, tennis court, pickleball court, basketball court, and off-leash dog park
  • 20 parks
  • Learn more about Sudden Valley’s recreational amenities on the maps shown below:
  • 2 outdoor seasonal pools
    • Main Pool, connected to the Community Center
    • Quiet Pool, a smaller pool offering a more relaxing swim experience, located behind the South Whatcom County Library
  • The only golf course in Whatcom County along a lake, designed by the renowned course architect, Ted Robinson.
  • The South Whatcom County Library, which is a branch of the Whatcom County Library System; building also features a meeting room and the Quiet Pool sauna and showers
  • 2 Community Gardens
  • Area Z Storage Facility



Events