Boulder County | Net Zero Codes Cohort

Lotus provided project management and facilitation for the Boulder County Net Zero Codes Cohort, later renamed to the Northwest Metropolitan Regional Energy Code Cohort. The project included two phases: the first reviewed and adopted the 2021 International Energy Conservation Code (IECC) with regional consistent strengthening amendments, and the second created a regional roadmap for reaching 100% net zero new construction by 2030.

Phase 1

For Phase 1 of the project, Lotus facilitated a series of five meetings with eight community partners in the Northwest Metropolitan region of Denver to co-create consistent energy code amendments that could be adopted alongside the 2021 IECC to support local and regional climate goals. Equity, GHG reductions, and the needs of individual communities were discussed within the cohort while the group reached a consensus for the recommended code package. Phase 1 included code package development along with individualized community support to help each partner community with their code adoption process. Lotus worked with consultant partners Southwest Energy Efficiency Project (SWEEP) and Shums Coda throughout the project to develop the code package for the region along with supporting materials such as fact sheets, customized presentations, training materials, and other individualized support requested by each community. Lotus and the consultant team attended council meetings and study sessions with staff to ensure the code package was understood and could be adopted by each leadership council. The results of Phase 1 code adoptions for the region can be seen in the table to the left (as of February 2023).

Phase 2

Phase 2 of the project began the summer of 2022 with a goal of creating a roadmap of ranked local, achievable, affordable, and equitable policies and strategies to reach the goal of net zero new construction by 2030 for the region. For Phase 2, Lotus facilitated a series of eight meetings with ten communities to co-create a regional definition of “net zero new construction,” as well as a roadmap with a stepped approach to achieving net zero new construction by 2030. Equity and regional collaboration were strong themes throughout the discussions and the roadmap. The roadmap was written and designed by Lotus, with support from SWEEP and Shums Coda, and lays a foundation for continued regional coordination on future building code updates for each community involved.

The Boulder County Net Zero Code Cohort was funded by a Department of Local Affairs grant and created a framework in the state for regional collaboration on building codes which has been deployed in other areas of Colorado to support local communities with building code adoption.