Harvard Business School Publishing has signed a lease at 20 Guest St., filling part of the space to be vacated by New Balance when the athletic company moves to the Boston Landing mixed-use development next door.

Harvard Business Publishing will move from 300 North Beacon St. in Watertown next April.  The building at 20 Guest St. contains 228,901 square feet of office space currently occupied by New Balance, which will move to Boston Landing when it’s completed this fall.

The Warrior Ice Arena, the new practice facility for the Boston Bruins, will be completed in September 2016. Boston Landing will also include 80,000 square feet of retail space, a 175-room boutique hotel, housing and an athletic facility. It has approvals for an additional 450,000 square feet in office space. NB Development Group is overseeing the $500-billion project.