CHICAGO (CBS) — The Commission on Chicago Landmarks approved several aspects of the Wrigley Field renovation plan, but put off a decision on the sizes of a video screen and outfield advertising board.

Alderman Tom Tunney wrote a letter to Chicago Cubs Executive Vice President Michael Lufrano ahead of today’s vote demanding a reduction in size of a planned the video screen from 6,000 square feet to 4,000 square feet as well shrinking an advertising board in right field from 1,000 square feet to 650 square feet. Tunney also wants to remove a pedestrian walkway over Clark Street from the renovation plan.

The commission did approve of the Cubs’ plans to move the outfield walls out farther out and an expansion of a stadium bar among other changes.

Chicago Cubs VP of Communications Julian Green responded to Tunney’s letter yesterday, saying in a statement,” When we agreed with the City to move forward with the planned development process our plans included many of these elements to deliver the resources we need to fund the project and create additional revenue to put back into the team. Anything less hampers our ability to make a $500 million investment without public support.”

Because Wrigley Field an official city landmark, any significant change that modifies its character must be approved by the city’s landmarks commission.

Watch & Listen LIVE