Today on "The Building Code," Carly sits down with Joe Christensen, founder and owner of Cardinal Crest Homes in Kansas City and, as of this year, president of the Home Builders Association of Greater Kansas City. Buildertrend just released the Modern Builder Playbook -- a new industry survey on what separates today's top builders from the rest. Joe is a real-world proof point of those findings, and in this episode he walks through 15 years of building Cardinal Crest from a two-man startup to a multimillion-dollar custom home business.