Exelon headquarters

Artist rendering of planned Exelon headquarters in Harbor Point. (Rendering by BHC Architects / September 27, 2013)

The addition of apartments to Beatty Development Group's planned Exelon Corp. tower at Harbor Point took another step forward after a city panel recommended qualified approval Thursday for its design.

The Baltimore City Urban Design and Architectural Review Panel approved the project "with comments," contingent on signage and other details coming back to the panel for additional review, said city planner Anthony Cataldo, the panel's coordinator.

The project calls for 103 apartments, where office space was originally planned. Studio and one bedroom apartments would be built, replacing roughly 116,000 square feet of office space and making the project more of a mixed-use development.

A trading floor and a parking garage remain part of the plans, which now call for apartments wrapping around the garage instead of office space.

Darrell Doan, managing director of real estate development for the Baltimore Development Corp., the city's quasi-public economic development arm, has said the proposed change "increases the viability of the project."

In January, the energy giant Exelon, which acquired Baltimore-based Constellation Energy Group last year, won the panel's approval for a brick-and-glass regional headquarters with a tower that would rise 23 stories and 350 feet as part of a $250 million first phase of Harbor Point development.