Hilton Head Regional Habitat for Humanity will dedicate the fourth house built at Promise Way in Ridgeland at 10 a.m. Saturday. At completion, Promise Way will consist of 10 cottage-style houses, according to a news release. The resident families have attended homebuyer workshops and worked with strangers and friends to help build their houses and those of neighbors, the release said. Streets, utilities and other infrastructure needed to accommodate the development were paid for by a Community Development Block Grant. Details: Call 843-757-5864.