The ecology report (one of the many documents in the planning application) includes a timetable for the works. It has site clearance starting in June 2018 (a tad optimistic perhaps?). Construction of the leisure centre, diversion of the road and construction of the new promenade from June 2019 to Nov 2020. The building the houses on the eastern end from June 2020 to Dec 2021 and on the western end from Jan 2021 to 2022. Just think of the years of mess, noise and general disruption!