Lone Tree, Colo. — The Boulder Group has negotiated the $14.7 million sale of a single-tenant property net leased to Safeway in Lone Tree. The 55,650-square-foot building is located at 9229 Lincoln Ave. along Interstate 25, 17 miles south of downtown Denver. Thee undisclosed buyer is completing a 1031 exchange while the undisclosed seller is a private REIT. Randy Blankstein and Jimmy Goodman of The Boulder Group represented both the buyer and seller in the transaction. Albertsons Co. guarantees Safeway’s lease.