Here's a challenge. These light industrial units in Daventry are pretty common across the country, but how would you model them?
Obviously the brickwork and doors are easy enough, but that roof and wall material is shaped and bends around the top of the building. My best guess is some large scale corrugated iron sheet bent with the aid of the some heat - but it's not really the correct shape. Bending it will be "fun" too.
I suspect I'd cheat and just bend plain plastic over the roof and side, then add square strips for the raised bits. Again, not the right shape, but unless you are an architectural modeller or demand perfection, it would do for the back of a layout.
Any other ideas?