This project analyzes the cost effectiveness of energy-saving measures installed by a large public housing authority in Salishan, a community in Tacoma Washington.Research focuses on the modeled and measured energy usage of the first six phases of construction, and compares the energy usage of those phases to phase 7. Market-ready energy solutions were also evaluated to improve the efficiency of affordable housing for new and existing (built since 2001) affordable housing in the marine climate of Washington State.