The first phase in the Mountaingate development was the Country Club and golf courses, built in 1970, on a sanitary landfill. No homes in all of Mountaingate, however, are located on the landfill. The first homes, which are townhouse/condominiums, were constructed in 1979. he private Mountaingate Country Club features a magnificent golf course that meanders its way through the canyons of the development. It is regarded as one of the top golf experiences in Los Angeles. Mountaingate CC features two golf layouts – the Lake-North course, par 70, and the North-South, par 71. The Club also features a very active social and recreational calendar and has six tennis courts, a restaurant, snack shop, pro shop and other amenities including a spa and locker rooms. The Country Club is located within the development, but it is not part of the Mountaingate residential community. Several types of memberships are available at the private Club.
Mountaingate features four-communities-in-one for a total of 307 residences — 187 single-family dwellings and 130 town homes/condominiums. There are three townhouse communities – The Vista, The Terrace, and The Ridge, and the single-family homes are located in Promontory, Canyonback, and Stoney Hill. There are four homes located on Mountain Crest Lane.
Most of the Mountaingate community is served by 24-hour guard-gated security, and guards patrol all neighborhoods on a regular basis for added security and privacy around the clock. Residents of each community also enjoy a beautiful community pool, and some of the neighborhoods have other amenities such as a recreation room, mini park or tennis courts.