Greggs – Longwater, Norwich – Opening Hours & Store Details Greggs is found in an ideal location in Longwater Retail Park on Longwater Retail Park, approximately a 5.16 mile distance west from the centre of Norwich (a few minutes walk from Longwater Industrial Area and Link Road Bus Stop). The store is delighted to serve patrons within the districts of Easton, Roundwell Park, Hampden View, Taverham Mill, Marlingford, Bawburgh, Queen’s Hills and Costessey. It’s open from 7:00 am to 8:30 pm today (Friday). Here you may find hours of opening, store address or customer rating for Greggs Longwater, Norwich.