These buildings from Timecast turned up too late for the game, and I wasn't sure about the size. They have now been painted and I'm still not convinced. They are sold as 18/20mm, I've displayed them with my 20mm figures.
Arnhem cottages, the front door is 15mm high by 5mm, definitely undersize.
Foy house & barn, the house door is 18mm x 11mm so the close to the advertised scale. The small barn doors are 20mm x 7mm so the right height, but too narrow
The overall height/bulk of the Arnhem church is fine, but the main door is only 22mm x 14mm. The back door is 18mm x 8mm.
They are very heavy, and attempting to dry-brush the brickwork is a pain as it is so fine. Because they are not critical to any game, I'll probably copy them and then sell them to a more appreciative home.