The prospect of thousands of new homes being built in the constituency is one of the key issues in Wantage and Didcot.
The government wants 55,000 new homes built in Oxfordshire by 2026, with the Wantage area likely to take a share.
Conservative Ed Vaizey said people wanted "sustainable communities" while Liberal Democrat Alan Armitage said an improved infrastructure was needed.
Labour's Steven Mitchell said enough houses had to be built to meet demand.
"Everyone complains they don't want more houses but then complain their children can't afford a nice house," he added.
Mr Vaizey said the future development of the constituency had been an important factor throughout his tenure.
"People are not saying no more housing, they are saying they don't want housing developments that double the size of their town and village overnight," he added.
Mr Armitage said there needed to be immediate investment in transport and flood defences.
"The area is not particularly well-served by roads and we need more railway stations too. We do have the opportunity to solve these problems if we can be allowed to get on with it."
• The candidates announced for Wantage are: Liberal Democrats, Alan Armitage; UKIP, Jacqueline Jones; Labour Party, Steven Mitchell; Green, Adam Twine and Conservative, Ed Vaizey.