It seems to be something of a common occurrence for Hazel Blears to approve planning decisions which involve building lots of cheap houses on the outskirts of towns in marginal seats. There's a story here about a 450-house development in Northampton which is being pressed ahead with by a local development corporation, against the wishes of South Northampton Council (Conservative lead). The Northampton South MP, Brian Binley (Conservative), has written to Hazel Blears to request a meeting. Her final decision will be worth keeping an eye on.
Northampton South was a Labour gain at the 1997 election, but Brian Binley won it back for the Conservatives in 2005, with a majority of 4,419.