The Rocky Ridge Farm Historic District is eligible for inclusion in the National Register of Historic Places under Criteria A and C. Developed during 1928-30 and 1936-40, the District is the best and only example in the town of Chapel Hill, North Carolina of the early twentieth-century residential movement sometimes referred to as planned suburbanization, a national movement, aspects of which traded on or were identified with such concepts as Ebenezer Howard's Garden City and Charles Mulford Robinson's City Beautiful movements. Many of its contributing structures were designed by architects who were building important reputations, and in styles that reflected the tastes of the '20's and '30's for revival styles. The construction of some of the buildings was by Chapel Hill contractor Brodie Thompson. Its landscaping and other amenities represent the botanical work of some of its residents as well as the art of local masons. Finally, it is the only instance of the collaborative planning and road design work of William Chambers Coker (1872-1953), a local botany professor who acquired a state-wide reputation as a planner and landscape designer and T Felix Hickerson, another UNC professor whose work set the stage nationally for a new approach to designing roads. - NRHP, 26 June 1989