The elevations of House of Fraser, Bristol, are largely clad in stone-faced precast concrete panels, arranged in portrait format. The largest is nearly two by ten metres in size. Our geological theme suggested by the building’s massing was developed in the use of Roach Bed Portland stone as the principal facing material. Hard and durable, Roach is noteworthy for its high fossil content: where the shells within the stone have long since decomposed, there are now holes – negatives, or moulds, in effect – which imbue it with a lively, textured appearance. We love this unique organic texture and how the surface catches the light in varied ways and which people want to touch - another kind of active frontage.