Greggs – Tesco Extra Irvine – Opening Hours & Store Details You’ll find Greggs situated at an ideal place at 16 Riverway, about a 0.33 mile distance south from the centre of Irvine (nearby Riverway Retail Park). The store is properly located for customers from Drybridge, Ravenspark, Montgreenan, Polnoon, Springside, Irvine Town Centre and Dreghorn. It’s open from 7:30 am until 6:00 pm today (Friday). On this page, you’ll find information about Greggs Tesco Extra Irvine, including the opening hours, map or telephone number.