MO HB502

Requires all new state-funded building projects greater than 5,000 square feet to be designed and constructed to achieve either two Green Globes certification or LEED Silver standard certification

Mandates that renovation projects involving more than 50% of square footage and commercial interior fit-outs larger than 7,000 square feet undergo life cycle cost analysis comparing sustainable building standards against conventional construction methods

Establishes energy performance requirements, including a minimum of 20% energy reduction for new buildings under ASHRAE standard 90.1-2007, with allowances for the Office of Administration to waive requirements if economically infeasible

Requires third-party commissioning inspections of certified buildings at years 5, 10, and 15 after certification to verify continued compliance with original performance standards

Directs the Office of Administration to monitor and report to the legislature on energy savings, environmental benefits, and performance of all state-funded sustainable building projects over a 15-year period