Centros Miller today unveiled designs for John Lewis department store that will anchor its £350m Northern Quarter development in Portsmouth.

The 230,000 sq ft (21,367 sq m) store, which has been designed Chapman Taylor, will be located at the intersection of Commercial Road and a new shopping street leading towards St Agatha’s Church. It will trade on four floors and stock John Lewis’s full range of merchandise.

John Marsh, Centros Miller’s development director, said: ‘The new John Lewis store will anchor the Northern Quarter development both commercially and geographically to form a tremendous landmark building for Portsmouth City Centre.’

Ann Humphries, John Lewis’ director of retail development, said: ‘We are incredibly excited by Chapman Taylor’s proposals for our new department store and are looking forward to delivering excellence and quality in both design and our product assortment in Portsmouth.’

The designs for the John Lewis building are the first to be revealed by Centros Miller’s architectural team following the achievement of outline planning consent for the 1m sq ft ( 92,902 sq m) Northern Quarter earlier this year. The scheme is due to complete in 2010.