Overview Casta Del Sol is a retirement community in Mission Viejo, South Orange County, California. The community has developed nearly 2000 homes that are built in a natural environment. Casta Del sol is a gated urban community in a pastoral setting. So matured trees, rabbits, coyotes, rattle snakes can be seen. It is an ideal society for those who love to live in the lap of the nature. The residents have immense civic pride. There are many volunteers who serve the society and preserve it. There are abundant activities both indoors and outdoors. The finances of the community are well maintained and kept within bounds. The association fee includes the green belt areas, security patrol and gate guards. The exterior paintings of the homes are done after every 6 years. Most of the residents are single families and have two or three bedrooms. These houses are of one story, unattached residences with one or two garages.