B&M – Stone Lane Retail Park, Exeter – Opening Hours & Store Details B&M Home Store with Garden Centre occupies an ideal position in Stone Lane Retail Park on Marsh Barton Road, about a 0.63 mile distance south from the centre of Exeter (near to Stone Lane Retail Park Bus Stop). The store serves the customers of Wonford, St Leonards, St Thomas, Alphington, Exeter City Centre, Newtown, Redhills and Foxhayes. Hours of operation, directions or phone details for B&M Stone Lane Retail Park, Exeter can be found here.