Littlehampton’s new leisure centre will have an eight-lane, 25-metre swimming pool, learner pool, gym, dance and cycling studios, sports hall and café.
Construction is set to start sometime in 2017, with the centre built on the site of the current sports dome and overflow car park.
The current leisure centre will continue to be used while the new one is under construction but will later be demolished.
Willmott Dixon has built more than £100m of leisure facilities in just the past six month, working in Tewkesbury, Dartford, Scarborough, St Albans, Oldham, Hebburn, High Wycombe and Romford.
Arun District Council procured Willmott Dixon through the Southern Construction Framework.