In partnership with the City of Winnipeg and various levels of government, La Maison created the Sculpture Garden in 2008, an outdoor green space adjacent to La Maison’s galleries. The gardens contribute to culture, community, economic development, heritage and the arts in the community. Today, the Garden features 5 permanent sculptures commissioned from renowned French Canadian artists as well as ephemeral projects in collaboration with Cool Gardens. The Sculpture Garden also features a light box located directly towards Provencher Boulevard, a major traffic artery in the St. Boniface neighbourhood. This structure, set up a few years ago as part of the Flash Photographic Festival, is designed to showcase photographic works with each work being presented for approximately one year. The Sculpture Garden welcomes thousands of visitors every year with public events organised by La Maison or its partners. As with the art gallery, access is always free for the public.

At the same time as the creation of the Garden, the charitable organization "Les Amis des arts visuels du Manitoba" was registered with the mandate to promote the visual arts and be the custodians of the Sculpture Garden. Its main activities are the maintenance of the 5 permanent public art sculptures, yearly upkeep of the garden and raising the funds for new sculptures.