MiscResearch Predicts Certified Green Building Space Will Grow at a Rapid Rate 15 years ago15 years ago1 mins World-wide, green building space is expected to grow from 6 billion to 53 billion square feet, according to a new study. Post navigation Previous: San Rafaels green-building ordinance in effectNext: WPL Webinar to Help Construction Professionals Minimize Risks While Building Green in Tough Economic Times