Cornerstone Communities is a residential homebuilder in Southern California with multiple new home neighborhoods for sale acr ... oss San Diego County. The management team at Cornerstone Communities is comprised of a seasoned group of development and building professionals possessing over 150 years of combined experience in the homebuilding field having developed, mapped, and/or constructed over 15,000 homes in over 60 developments throughout California and Nevada. Professional Builder magazine heralded the group as one of the nation's Building Giants. Cornerstone has been consistently ranked as one of San Diego's top privately held residential homebuilders by the San Diego Business Journal and was recently recognized as one of the Top 500 Privately-Held Businesses in the U.S. by DiversityBusiness.com read more