The high-specification new build leisure centre includes a 25-metre swimming pool, eight-court sports hall, 80-station fitness suite, dance studios and café as well as outdoor pitches for football and rugby.
The two-storey steel frame building also boasts a 12m learner pool with a moveable floor.
Designed to complement its surroundings on the Sedbergh Playing Fields site, the 55,660 sq ft building features a large expanse of glazing to its façade, with solar shading panels and timber cladding elements, as wells as a striking aluminium roof design that wraps around the structure.
The project is scheduled for completion in summer 2019.
Tim Harvey, operations director for ISG, said the contractor boats strong leisure credentials at a national and regional level.
ISG was responsible for the construction of the 2012 Olympic velodrome and is currently on site in Rhyl, North Wales delivering a leisure pool, has commenced a £6.1m scheme in Monmouth South Wales and has recently completed a scheme at Hambleton, North Yorkshire.