A developer is moving forward with plans to construct a four-story addition to Harbor Hill Apartments in Federal Hill.

Reston, Va.-based Renaissance Centro will add a new building with 70 units on the southern portion of the property, said the project's land use attorney, Venable LLP partner David Karceski. The new complex will take up a portion of a surface parking and include 144 parking spaces. Preliminary plans for the project also include a swimming pool.

Additional details, including when the construction will take place and what it will cost, have yet to be determined. Located near Federal Hill Park at 211 Warren Ave., Harbor Hill's amenities include a fitness center, WiFi and a rooftop deck with views of the Inner Harbor. Renaissance Centro purchased the building for $26.8M last year.

It is the latest multifamily project in South Baltimore, an area growing in part because of its proximity to Sagamore Development's $5.5B redevelopment of the industrial waterfront in Port Covington, the future home of Kevin Plank's Under Armour. Caves Valley Partners' $275M Stadium Square mixed-use project will include 650 apartments.