B&M – Barnsley, Old Mill Lane – Opening Hours & Store Details B&M Store is found in a convenient location on Old Mill Lane, a 0.51 mile drive north-east from the centre of Barnsley (a few minutes walk from Harborough Hill Road / Old Mill Bridge). This discount store serves people from the locales of Honeywell, Athersley, Gawber, Kendray, Oakwell, Barnsley Town Centre, Monk Bretton and Stairfoot. On this page you will find all the essential information about B&M Barnsley, Old Mill Lane, including the working times, map and contact info.