Santa Clarita planning commissioners Tuesday sent the Sand Canyon resort proposal back to the drawing board amid continued concerns, focusing largely on emergency evacuations. Developer Steve Kim, who owns the Sand Canyon Country Club, wants to add a resort and spa across 77 acres of his 300-acre country club on the northeast corner of Sand Canyon Road and Robinson Ranch Road. It would include multilevel hotels, villas, dining options and outdoor recreation. He is also looking to gain a zone change from “open space” to “community commercial” on half of the four site lots. Kim presented Tuesday a proposed revision of the project, which would eliminate the nine, one-story villas located on the western portion of the site. The move would reduce the immediate area from more than 31 acres to 24 acres and save nine non-heritage oak trees from being removed.