The "Boise Sports Park" proposal to build a multi-use baseball and soccer stadium for the Boise Hawks and a new USL team was announced in 2017.[5] The stadium near downtown Boise would have had a capacity of 7,000 to 8,000 for soccer matches and use a grass pitch.[2] The Boise Hawks' ownership group, Agon Sports & Entertainment, announced in January 2019 that it had signed a franchise agreement with USL to field a USL Championship team in Boise once the stadium was completed.[6] The stadium was planned to be completed by 2021 if funding from a public development corporation was in place.[7] The original proposed site for the Boise Sports Park drew opposition from local residents and was replaced by a new location in the West End neighborhood, but a voter-approved ordinance to require a citywide election on any sports stadium with public funding and financing issues led to the project being shelved in December 2019.[5][8]
Stadium
The teams plan to play at a soccer-specific stadium at Expo Idaho, the county fairgrounds of Ada County, in the suburb of Garden City. The stadium would incorporate the existing grandstand of the former Les Bois horse racingtrack and have 6,225 seats under the county government's development proposal.[9][10][11] Boise Pro Soccer was awarded a 30-year lease by the county government on October 30, 2024.[12]