Tafline Laylin, writing at Inhabitat   – a brilliant blog whose work we should be bringing to our readers’ attention more often, describes how – instead of demolishing a water treatment plant’s structures to make space for housing – it was repurposed and made part of the  housing.  This is a multiple success – resources conserved in demolition, construction, a “dirty”  site made functional,  and  top all that, it’s beautiful. Here’s one image from Laylin’s piece, Defunct Dutch Sewage Plant Converted into Fresh Green Apartments: