Chetwood Associates' ultra-green Sainsbury's store on the Greenwich peninsula (aj 24 June) has scored the highest ever official environmental rating for a retail building.
Last week the architect, which is aiming to cut energy use in the new 5100m2 store by 50 per cent relative to normal supermarkets, received a certificate from the bre showing that it had achieved the top 'excellent' breeam rating of 31 points.
But at a media briefing last week, Sainsbury's officials refused to release any details on cost. Project manager Richard O'Callaghan said costs were 'fluid' and the company would assess the situation when trading begins in the Autumn: 'At the moment we want to see how it performs and then do the cost-benefit analysis. We're spending quite a lot of money here and want to see about how long it will take to pay for itself.'