Carrum Downs is serviced by three shopping precincts, with a fourth bordering the suburb in neighbouring Seaford. The Carrum Downs Regional Shopping Centre is located on Hall Road in the centre of the suburb and is home to banks, a Woolworths Supermarket, a post office, chemist, newsagency plus 40 other shops including liquor shops, clothing stores, fast food outlets, restaurants and real estate agents. During 2014 a smaller format Bunnings store has opened to combat the opening of Masters just down the road while a full Bunnings Warehouse is under construction nearby to open during 2015. In early 2015 development began at the eastern end of the shopping centre of a substantial extension housing a KMart speciality store.