The DARTS Building, originally constructed in 1969, had experienced a decade of decay when purchased by its new owner in 2011. When originally constructed, this award winning example of modern architecture was a state-of-the-art facility that housed five dental suites. Its preservation and enhancement represents an investment in the architectural history of Phoenix. The building has been updated with numerous sustainable features including a sophisticated and efficient variable refrigerant flow HVAC system, double glazed replacement windows, enhanced insulation, and a forthcoming 12kW solar photovoltaic array. The striking architecture of the original building combined with its modern enhancements is emblematic of environmental preservation and architectural quality. This office complex houses GLA’s offices as well as out-patient surgery, consultation and dental facilities.