Support the nation's first green building guild and be recognized as a market leader in the green building community. Builders, Architects, Designers, Real Estate Agents, Finance Agencies and other related industries to join the Guild, and help bring green building to the forefront of the community.

We offer six levels of membership ranging from student to large business. Lower level memberships provide increased business visibility all year long through our events, communications, and more. Higher-level memberships provide company visibility and discounts. 

Membership Levels

  • Student - $25

  • Individual/Friend of the Guild - $50

  • Non-Profit - $200

  • Small Business - $250

  • Medium Business - $500

  • Large Business - $1,000

Why join CGBG?

Membership to CGBG offers a number of perks and benefits at all levels!

Members receive free or discounted access to all our organized events, from workshops and seminars, to Happy Hours and regular annual parties, and of course our flagship event – the ever-popular ‘Boulder Green Home Tour’, held each September. 

Being a member offers the chance to connect with like-minded people in the industry, both personally and professionally, at social events and through our online directory, and provides an excellent networking opportunity for you and your business in the local community and beyond. 

Members can also take advantage of a number of educational events throughout the year, such as panel discussions, lectures and seminars, which are designed to increase green building awareness and inform of specific areas of interest, as well as industry developments and practices. Monthly newsletters also keep members up-to-date and informed of CGBG events and industry happenings, and share information from our many sponsors and partners.


For questions contact Kath at or call us at 720.435.0770.