 Other developer-built communities begun in the 1940s include Chillumgate (1946) and Michigan Hills Park (1940s).Several subdivisions were constructed along Riggs Road, Sargent Road, and Sligo Creek Park in the 1950s, including Sargent Knolls (1950), Bel Air Estates (1955), Parkland (1955), Carrington (1957), and Miller Estates (mid-1950s-early 1960s).The street pattern of these communities are typical of their period.