Brentwood is a well-established suburb located approximately 10 kilometers south of the Perth Central Business District, nestled within the City of Melville. The suburb enjoys a prime position between the Kwinana Freeway to the east and Leach Highway to the north, offering convenient access to both the city and Fremantle. Brentwood is bordered by the suburbs of Mount Pleasant, Booragoon, and Bateman, and is in close proximity to major amenities such as Garden City Shopping Centre and the picturesque Canning River Regional Park.

Primarily a residential suburb, Brentwood is characterized by its quiet, tree-lined streets and a mix of post-war homes, more modern dwellings, and renovated character houses. The area has become increasingly popular with families due to its local primary school and abundance of parks and recreational facilities. The residential demographic is diverse, including long-term residents, younger families, and retirees, which contributes to a strong sense of community. The suburb is known for its peaceful atmosphere and relatively low crime rates, making it appealing for those seeking a suburban lifestyle within easy reach of the city.

Commercial properties in Brentwood are limited, reflecting its primarily residential nature. Local shopping needs are serviced by a small retail strip located along Cranford Avenue, featuring a convenience store, café, and a handful of specialty shops. Larger shopping and commercial centers are located in nearby Booragoon and Mount Pleasant. Public transport is readily available, with the Bull Creek train station and several bus routes providing connectivity to Perth and surrounding suburbs, ensuring that Brentwood remains a convenient and desirable location within the Perth metropolitan area.