Southern Land Co. has been selected to develop the first residential building planned for the University City Science Center campus-expansion project known as uCity Square, a company official said.

The Nashville-based developer will soon begin design work on the roughly 300-unit, five- or six-story apartment building at 3700 Lancaster Ave., said Dustin Downey, director of multifamily development.

Downey spoke Wednesday at the unveiling of the company's 3601 Market apartment project, the first residential building on the campus's existing footprint. Southern Land is also planning a residential tower at 1911 Walnut St. beside Rittenhouse Square.

215-854-2615 @jacobadelman