[1] The community between Fairfax City and Chantilly dates from the late 1960s, when it was developed by Levitt & Sons.

One drawback for residents of the community is that with nearly identical sounding named roads (for example, Mayport and Maylock) in such close proximity to each other and house numbers being the same, the US Postal Service along with UPS, Amazon, FedEx, and food delivery services sometimes deliver items to the wrong house.

[3] This section includes some information from the 2022 American Community Survey At the 2020 census there were 8,421 people, 3,229 housing units and 3,021 households residing in the CDP.

As a member, one makes an annual payment to cover the costs of the pool's maintenance and staff, as well as for hosting swim meets for residents of other communities around Fairfax County.

Unlike most communities which are bound to a homeowners' association, Greenbriar has only a civic association which collects a strictly voluntary $25 annual donation from each owner, which pays for events that the community hosts throughout the year, including Bands in the Park, where during the summer, local music groups will play for residents at Greenbriar Commons Park; as well as the annual community phone Directory.

The Civic Association, however, has no bylaws for residents, which makes it attractive and a high demand-market community to live in within western Fairfax County.