Boston Properties ( BXP - Free Report ) has been witnessing rising demand for mixed-use properties from tenants. In a recent video interview at REITworld 2017 with Nareit, the company's CEO — Owen Thomas — revealed the fact but noted that the company still remains an office REIT. According to him, although the company is involved in mixed-use development, retail and apartment assets constitute less than 10% of its total portfolio. Notably, mixed-use developments reduce the distance between housing, workplaces, retail businesses, and other amenities and destinations. Hence, mixed-use developments enable companies to grab the attention of people who prefer to live, work and play in the same area. Further, Boston Properties is right on track to record 25% increase in its net operating income (NOI) by 2020. Specifically, contribution from delivery of several new developments is likely to constitute two-third of this growth in NOI.