Boston Mayor Signs Law Requiring All Buildings Over 20K SF To Be Net Zero Within 30 Years

Boston has expanded its sustainability regulations targeting commercial properties, with a new law requiring buildings 20K SF or larger to eliminate their greenhouse gas emissions by 2050.

Boston acting Mayor Kim Janey signed the updated Building Emissions Reduction and Disclosure Ordinance Tuesday, after more than a year of policy discussions and with backing from city officials and community stakeholders. The mandate, known as BERDO 2.0, requires property owners to report building emissions and reach carbon reduction benchmarks annually as part of Boston's push to achieve carbon neutrality by 2050.