The AIA and its Committee on the Environment (COTE) announced its 2015 COTE Top Ten Green Projects on April 22. The COTE has awarded the honors for 19 years, recognizing projects for stand-out sustainable architecture and ecological design. Here are three winners featuring exemplary green concrete construction techniques.

Tassafaronga Village, Oakland, Calif.
David Baker Architects

Courtesy Brian Rose

Completed in 2010, this modern affordable housing neighborhood developed on a former brownfield site provides diverse options for low income residents. According to the project profile:

Total site concrete mix included 25% fly ash and 10% recycled aggregate, and was locally extracted and manufactured.


Courtesy Will Crocker

As a non-profit lab and office space, the 64,000-square-foot NOBIC has provided essential space for biotech startups since opening in 2011. As noted in the project profile:

The project convinced local concrete suppliers to be the first to employ high recycled content mixes, and had local crews trained for the first installation of pervious concrete in the state.

Diamond Schmitt

Courtesy Peter A. Sellar

Certified LEED Platinum in 2013, Natural Resources Canada's CANMET Materials Technology Laboratory is located in McMaster Innovation Park (MIP), a new 37 acre campus development. The project profile states:

Concrete cement loads were offset with slag and concrete block contains up to 30% recycled expanded glass beads.

Read more about these and the other award-winning projects in Architect magazine, a sister publication to Concrete Construction.