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19th Annual Spontaneous Construction at Home ReSource

19th Annual "SponCon" - Spontaneous Construction at Home ReSource in Missoula on Saturday, September 19, 2023
Sign up to create your team’s creative masterpiece with 19th Annual “SponCon” (Spontaneous Construction) at Home ReSource in Missoula 9:00 am to 5:30 pm Saturday, September 16

September 16 @ 9:00 am 5:30 pm

Spontaneous Construction (SponCon) is an annual building competition and festival of reuse that happens at Home ReSource, Missoula’s only Community Sustainability Center! 

Everyone is invited to join us during the seven-hour building competition in supporting our amazing teams while also getting your own hands dirty with plenty of reuse projects hosted by many other community and sustainability-minded organizations like YWCA GUTS!, Animal Wonders, National Wildlife Federation, Families First Learning Lab, and Girls Scouts of Montana and Wyoming. From DIY reuse and repurposed solar oven to garden barrels to pet toys – these projects are all free and family-friendly. 

The Home ReSource ReUse Store will be open for all your building materials needs and donations during the event. In the parking lot you will find activities, food and beverages will be available for purchase, and live music throughout the day! Are you ready for the nittiest, grittiest, barb-a-looten-est party in town?

Let’s get ready to SponCon! 


Compete in the 7-hour building competition!
Teams have 7 hours to build the most masterful, functional, creative piece they can dream of, using only materials found at Home ReSource. Teams can be made up of 1 – 5 folks, are provided space to build, access to power, and use of the welding and cutting stations. All participants receive a commemorative SponCon t-shirt,  breakfast treats & coffee, and a drink ticket. 

Team types and registration costs:
$100 per team ( 5 people MAX)
18×12 ft work space
Access to 110v power

$50 per team (5 people MAX)
9×12 ft work space
Access to battery charging station

$50 General Team Entry / $100 Pro Team Entry


1515 Wyoming Street
Missoula, Montana 59801 United States
View Venue Website