In early 2009, the Smylies embarked on their most significant exterior project. Records at Taliesin showed plans for a long pergola and pavilion which would have spanned between the Nathan G. Moore House conservatory and the northwest corner of the Hills-DeCaro House backyard. Further research yielded a period photograph which proved the structure's existence. Subsequent digging uncovered the limestone foundation for the pavilion. The Smylies and Von Dreel-Freerksen set about recreating the pavilion and the first section of the pergola (the portion which falls within the property lines of the Hills DeCaro House). Roman bricks for the new construction were matched to remnants found near the buried foundations. As part of the project, a large modern garage built in 1978 was replaced by a smaller, more historically sympathetic garage.