Great Seneca Creek ES and Little Bennett ES were the first two iterations of the new LEED Gold prototype school with enclosed courtyard. William B.Gibbs, Jr. ES, Wilson Wims ES, Snowden Farm ES, and currently in design, Clarksburg ES 9 followed suit. Each design improved the prototype: LED lighting, more efficient geothermal systems, vegetative roofs, optimized insulation envelope, better acoustical controls, etc. Clarksburg ES 9 is tracking Green Globes Certification and IgCC requirements in lieu of LEED.