A vision of what Didcot town centre could look like after a £150m redevelopment is being unveiled tomorrow.

A draft masterplan, which will be on show at the Cornerstone Arts Centre between 9.30am and 1.30pm, shows the proposed layout and the type of amenities and housing which could be provided.

The project would more than double the size of the town centre, providing a mixture of shops, homes and leisure facilities.

South Oxfordshire District Council's scheme covers a 10-hectare area to the east of the Orchard Centre, between Station Road, Hitchcock Way and Broadway.

John Cotton, the council's cabinet member for Didcot, said work could be complete within 10 years.

The first phase of the town centre redevelopment was finished in 2005, when the £50m Orchard shopping centre opened.

Mr Cotton said: "This is the next phase of the Orchard Centre. The kind of retailers we will get will make shopping in Didcot a new experience.

"This development is about shopping and leisure and there's a significant amount of housing, which we will need to meet housing targets and also bring life to the town centre, so it won't be a dead space at night."

People who fill in a questionnaire on the ideas today will be entered in a free prize draw to win tickets to see comedian Mitch Benn or the Love Clothes fashion show at Cornerstone.

Earlier this year, the council said it wanted to include a department store, hotel, bars and restaurants, a library, fitness centre or bowling alley on the site. Most of it is now used for garages and warehouses.

Mr Cotton added: "It's about making the whole area from Richs Sidings and sweeping up the Orchard Centre green and lively, and making it feel more like a town centre and a real hub for Didcot.

"A key feature is the green, light and airiness of the design. There's a place for people to gather and it doesn't appear like a concrete jungle. We have a vision for the central shopping area to be pedestrianised."

Orchard Street would be extended east to join Hagbourne Road. A new public space would be created at the junction of High Street and Orchard Street.

A landmark building could be built in Broadway to mark the gateway into the town, and Hitchcock Way could become a tree-lined boulevard.

Ideas for parking include an underground car park or a multi-storey car park.

John Flood, the leader of Didcot Town Council, said: "It's another step on the road to making Didcot a major town."

The masterplan is expected to be finalised next month. It will form the basis of a planning document to be adopted by the district council next April.