Planned downtown Hilton grows a floor as designers hone their vision

Designers have added another floor to the planned Hilton Columbus Downton expansion, growing the tower to 28 floors.

The design team from Cooper Carry, Meyers + Associates Architecture and Jeffrey Beers presented an updated look for the proposed tower to the Franklin County Convention Facilities Authority this week. The project is estimated to cost $190 to $200 million.

The new design calls for about 460,000 square feet, which would bring the Hilton Columbus Downtown to 858,000 square feet and…