top of page

Denver's Green Roof Initiative


A Green Buildings Ordinance was approved by Denver City Council on October 29, 2018, and took effect Friday, November 2, 2018.

On November 15, Community Planning and Development (CPD) held an open house discussing the flexible options available for buildings under the new ordinance.


Building Permits for Projects under the Green Buildings Ordinance


Draft Rules and Regulations

CPD and the Denver Department of Public Health & the Environment (DDPHE) are jointly working to draft administrative rules and regulations for implementing the green buildings requirements.

These regulations will be submitted to the DDPHE board for approval on December 27. To allow staff time to incorporate public comments into the draft by November 30 or submit comments in person from 3 p.m. – 5 p.m. on Wednesday, November 28, in room 4.G.4 of the Webb Municipal Building at 201 W. Colfax Ave., Denver, CO 80202.


Final rules are expected to be adopted in February 2019.

Learn more about the origins of Denver’s innovative green buildings ordinance >>


The green buildings ordinance applies to the following:

  • New buildings 25,000 square feet or larger

  • Roof permits for existing buildings 25,000 square feet or larger

  • Additions of 25,000 square feet or larger


The ordinance does NOT apply to parking structures, temporary buildings, air-supported structures, greenhouses, single-family homes, duplexes, or dwelling units constructed in a group of three or more attached units, where each unit extends from foundation to roof and is not more than three stories above grade plane.

bottom of page