Administratively, Ellerslie forms part of the Ōrākei Local Board, which also includes the suburbs of Orākei, Mission Bay, Kohimarama, Saint Heliers, Glendowie, St Johns, Meadowbank and Remuera. To the west, Ellerslie borders on the One Tree Hill area and Cornwall Park. Largely a residential suburb, the area is arguably best-known as the site of Auckland's main horse-racing venue, Ellerslie Racecourse, as well as the original site of the Ellerslie Flower Show. (From 2008 the Flower Show moved to Christchurch in the South Island.)