The document summarizes sustainability features of four building projects: 1. The Lance Armstrong Foundation headquarters reused 88% of materials from the existing warehouse and utilized natural lighting through clerestory windows. 2. The Green Building in Louisville reused the existing building shell and materials, uses rainwater collection and green roofs, and generates its own energy through solar panels and geothermal wells. 3. Tassafaronga Village in Oakland reused an existing factory building for housing and included affordable and market-rate units with shared green spaces. 4. 1315 Peachtree in Atlanta reused an existing office building, collects rainwater, uses fresh air ventilation, and employs natural lighting and high-performance