The Garstang Road store runs on 100% renewable electricity and features customer car parking, an in-store bakery, and Seattle Coffee.
Stephen Biss, Co-op store manager, said: “We have had a great response – we are delighted to have had the opportunity to make such a significant investment in Preston and look forward to serving our community.
“The store has a great look and feel, and we have worked to develop the range, choice, products and services locally that will create a really compelling offer and enable the store team to serve the community quickly, easily, safely and, conveniently.”