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7 April 2015 Last updated at 08:39 BST
Labour needs a swing of 3.9% to oust the Conservative candidate in the west London constituency.
Some residents are concerned that local services cannot support the extra residents that house building will attract.
BBC London's Victoria Hollins reports.
The known candidates for the 2015 General Election for Ealing Central and Acton are:
Angie Bray Conservative Party, Jon Ball Liberal Democrats, Peter Florence UK Independence Party, Rupa Huq Labour Party, Tom Sharman Green Party
Ealing Central and Acton is one of about 20 seats that could shape the outcome of the election.