SIMI VALLEY, Calif.–(BUSINESS WIRE)–City Ventures, California’s leading builder of solar-powered, ecologically responsible homes, has announced the official Grand Opening of Walnut Park, a new townhome community bringing energy-efficient, three-story residences to Simi Valley. The highly anticipated Grand Opening will take place on Saturday, November 14, from 11 am to 2 pm. Interested homebuyers are invited to explore Walnut Park, tour the beautifully decorated model homes, get details on exc