Cavanaugh's Rittenhouse house is moving down the block in Center City to a new, 4,000-square-foot space at 1921 Sansom St. The original location at 1823 Sansom St. opened in 2008. The new sports bar, slated to open in early to mid-September, will feature two levels and a mezzanine for private events. An updated menu also will add pizzas and flatbreads to the food and drink options.