Be one of the first to experience the state of the art in senior living, the beautiful new Chelsea at Sparta. Nestled in the rural lake country of Sussex County. The Chelsea is the latest addition to the portfolio of Chelsea Senior Living, a company that helped pioneer assisted living in New Jersey in the 1980’s and whose founders still live and work here. The Chelsea at Sparta will combine the latest in senior-friendly design with the services and amenities that today’s generation of older Americans demand. This combination of services, location and dedication to our core mission of caring, commitment, compassion and competency is what sets Chelsea apart.