Banjup is a suburb of Perth, Western Australia, located within the City of Cockburn. Its postcode is 6164. It is approximately 25 km south of Perth City.
Banjup mainly consists of rural residential properties, with an average minimum lot size of 2 hectares (5 acres) , together with a small number of agriculture-based businesses (horticulture such as plant nurseries and flower growing). The suburb has a mixture of small scale rural properties which have been used for hobby farms (for example to run horses) and "lifestyle" residents who prefer open space and more space when compared to normal Perth suburban blocks.
Banjup is located on the Jandakot Water Mound. As part of the Western Australian State Government water resource protection policy development over the Jandakot Water Mound is limited to reduce the possibility of contamination from run off from properties. As a consequence the number of animals per property is limited by the City of Cockburn zoning policies (for example 1 horse per 2Ha property - exemptions apply for established properties with livestock).
Much of the Jandakot Regional Park is located within Banjup.