November 2018 Green Bond: June 30, 2019 Allocation Report

Sustainability Strategy

As the largest publicly traded developer, owner, and manager of Class A office properties in the United States, Boston Properties actively works to promote our growth and operations in a sustainable and responsible manner across our five regions. Our sustainability strategy is broadly focused on the economic, social, and environmental aspects of our activities, which include the design and construction of our new developments and the operation of our existing buildings.

We believe that by understanding the social and environmental impacts of our business, we are better able to protect asset value, reduce risk and advance initiatives that result in positive social and environmental outcomes.

Through our efforts, we demonstrate that operating and developing commercial real estate can be conducted with conscious regard for the environment and wider society while mutually benefiting our tenants, investors, employees, partners, and the communities we serve.

Management Assertion

Boston Properties Limited Partnership (BPLP) management is responsible for the completeness, accuracy and validity of the November 2018 Green Bond: June 30, 2019 Allocation Report, which appears on page 7. BPLP management asserts that as of June 30, 2019, the net proceeds of $988.1 million from the BPLP November 28, 2018 offering of the 4.500% Senior Unsecured Notes due December 1, 2028 were allocated to Eligible Green Projects, as defined below, included on the November 2018 Green Bond: June 30, 2019 Allocation Report, which appears on Page 7.