Sun Design Remodeling is holding an open house in a recently renovated home in conjunction with the 12th Great Falls Studios Tour Oct. 16-18. The residence owned by Joesph and Alison Lopez demonstrates how open floorplans are being effectively introduced into homes that previously employed a more traditional room configuration. Designers enlarged the kitchen by relocating the formal dining room and creating a stronger visual linkage to a backyard filled with old stand trees. Tour hours are Friday, noon-5 p.m.; Saturday, 10 a.m.-5 p.m.; Sunday, noon-5 p.m.