The Greenwall School operates on a 9 acre rural campus in the Stossel Creek area of Duvall, Washington that includes salmon-bearing creek, pond, wetland, fields, and forest. Students split time between the indoor library classroom, the outdoor covered fire pit classroom, as well as various ecosystems.

The location is 7.5 miles from downtown Duvall, Washington near the fork of Kelly Road and NE Stossel Creek Way. The campus shares space with a family residence and the address is publicly withheld to protect privacy. Enrolled families will have the opportunity to tour the campus prior to the start of the school year.