Speculation has been rife that the Greater London Authority would decline to take office in the new Foster building by Tower Bridge. After all, Mayor Livingstone once referred to it as the 'glass testicle' and expressed a preference for the old Greater London Council headquarters at County Hall. It is true that the Ralph Knott building, even with its hotel rooms and aquarium, still has substantial space available, including the immaculately preserved debating chamber (it is listed). However, Astragal understands that the Foster headquarters is back on the agenda. One reason is the relative cheapness: £36.50 per square foot is a bargain-basement price and running costs should be low given the building's lowenergy strategy. But there is a more fundamental reason for moving to north Southwark - Ken believes that digging in over County Hall would be 'fighting yesterday's battles'.