A one woman rebellion by veteran councillor Cynthia Endacott failed to halt Tesco's plans to take over a town centre pub.
She refused to follow borough officers' recommendations and agree to applications by the giant company to make changes to the Three Elms pub building in Clarence Road, Windsor.
The company does not legally need planning permission to turn the pub into a store. But it did need permission to make the necessary alterations - setting up air conditioning units, putting up signs and a canopy.
Cllr Endacott's colleagues on the Royal Borough's development control panel gave the go-ahead, after being told by officers they didn't have any legal grounds to oppose them.
But the independent councillor for Clewer North made it clear she was not prepared to vote for change that would harm the business of nearby small traders.
She said: "I will not accept there is nothing we can do to protect those small traders."
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