American housing doesn’t get much more quintessential than a 1968 ranch style home. That’s exactly what eco-entrepreneur Paul Shahriari bought for his family in Cape Coral, Florida -- a yellow ranch clad in stucco and in need of a new roof and windows. His family would eventually come to call it their Lemonade House. The house has also been reborn as the Florida High Performance Green House, a demonstration home for Shahriari, a sustainability consultant and founder of three companies.