Cubs planning $300 million Wrigley renovation updated 3:18 p.m. CHICAGO (AP) - The Chicago Cubs announced a five-year, $300 million plan to renovate Wrigley Field at the annual Cubs convention on Saturday. There are still several hurdles to clear, including funding for the project, but owner Tom Ricketts is confident renovations can begin as early as October, starting with the home clubhouse. Cubs president of business operations Crane Kenney said the Ricketts family would be happy to foot the entire bill, but would like fewer restrictions from the city in return. The work would all be done in the offseason to avoid having to find a temporary home for the team - a detail that drew support from the room overflowing with Cubs fans.