building plans. As a result, families employed in high-tech industries bought property in unincorporated Rancho Rinconada and demolished the existing houses to build new "monster houses". In March 1999, the residents of the unincorporated part of Rancho Rinconada voted to be annexed to Cupertino, with the promise of more restrictive property development procedures and improved services to the neighborhood. Later that month, the Cupertino City Council voted into law a bill that required neighborhood comment and reduced the percentage of a lot that could be covered by a building. The "irrational exuberance" at the dawn of the new millennium brought another paradigm shift in the remodeling and construction of homes in the Rancho Rinconada neighborhood. Not only were large homes being built, but high-end materials, fixtures and appliances were incorporated to market as executive homes for high-income families. Though there were restrictions put in place that reduced the percentage of the lot that could be built above ground, the contractors went underground building underground living space to maintain a large available living space for an executive class home. As of 2020, the neighborhood was made up of an eclectic group of homes, from the old cheaply built Rancho houses of the 1950s, to the high-end executive homes of the 2000s and 2010s. References Neighborhoods in Cupertino, California