This week, we paid a visit to the brand-spanking wing of Ditchling Museum; its black zinc bulk looked as impressive in the thin winter sun as it does in this austere artist's impression. I have a thing for black buildings right now; whether they're charred like the gorgeous Hunsett Mill in Norfolk or tarred-sticky like Norway's Knut Hamsun Centre and Shingle House (not too far from Derek Jarman's garden at Prospect Cottage). Oddly, my favourite (Sottsass Associates’ Bischofberger House, Zurich) doesn't really feature online anywhere… yet.