Decathlon – Wandsworth, London – Opening Hours & Store Details Decathlon, which is part of Southside Shopping Centre, is situated at 55-57 Garratt Lane, approximately a 4.61 mile driving distance south-west of the centre of London, in Wandsworth (a few minutes walk from Garratt Lane Old Burial Ground and King George’s Park). This store serves people chiefly from the neighborhoods of Sands End, Parson’s Green, Clapham Junction, Putney, Battersea, Wandsworth, Southfields and Fulham. If you would like to visit today (Friday), its opening hours are 9:00 am – 8:00 pm. Read the specifics on this page for Decathlon Wandsworth, London, including the operating times, address info, customer feedback and further details.