KAUT-TV, built in Oklahoma City, OK in 1982, was REES’ first qualified sustainable design. Though what became known as sustainable principles were implemented on projects from the very beginning of the firm’s existence, KAUT was the first project that assembled several strategies into one project.
- According to the California Green Building Task Force, page v, the additional cost of LEED is repaid tenfold over time.
- When the 30-Year life cycle cost of a building is considered, initial building cost is only around 2-3%. Operations and maintenance costs will represent around 5% of the cost. Personnel are the single highest cost factor by far and attribute over 90% of the cost of the building in its lifetime.
- With specific regard to any cost incurred on upgrading occupant comfort, studies have shown a payback period of as little as 7 months (Source: "Life Cycle Cost Analysis of Occupant Well-Being and Productivity in LEED Offices," Singh, Syal; www.spdc.msu.edu).
- Rate of Return of 167% as a result of implementing indoor environmental quality strategies including daylighting, acoustics, and ventilation (Source: "Life Cycle Cost Analysis of Occupant Well-Being and Productivity in LEED Offices," Singh, Syal; www.spdc.msu.edu).

