The project, previously known as The Paradise Project, involved the redevelopment of 42 acres (170,000 m²) of underutilised land in Liverpool city centre. It is a retail led development, anchored by department stores Debenhams and John Lewis, with additional elements including leisure facilities (anchored by a 14-screen Odeon cinema and 36-hole adventure golf centre), apartments, offices, public open space and transport improvements.
The completion of Liverpool ONE has significantly boosted the local economy as well as lifted Liverpool into the top five most popular retail destinations in the UK. Liverpool ONE is the largest open air shopping centre in the United Kingdom and the 10th largest overall.
The majority of the development was opened in phases on 29 May 2008 and 1 October 2008, during Liverpool's year as European Capital of Culture, whilst the final residential units opened in early 2009.The cost of construction associated with the project was £500 million, with a total investment value of £920 million.