Supermarket retailer Tesco has been ordered to stop building work on a development in Slough by the Competition Commission.
Tesco acquired the Co-op supermarket in 2003 but demolished the building at the end of 2006 to move into a new store a mile away.
The proposed new development would be just over half the size of the original Co-op store and competitiors say it would be too small to compete with the nearby Tesco hypermarket.
The Commission was asked to look at the case in April 2007 and has now ordered work stop before it goes anyway further. The retailer has been warned it must not enter into any agreement to either purchase, lease or occupy the site until the CC comes to its decision on November 28.
It is reported that Sainsbury's has submitted an application for a 100,000 sq ft store on the site, about the same size as the Tesco hypermarket