An ingenious but simple building set in which rectangular plain wooden slats are used lengthways to form walls, their short ends connecting at the corners with castellations. Half height slats on alternate (ie opposite) walls allow the layers to be staggered to permit stacking. Triangular gable pieces have cut-outs to carry rafters. These in turn support the red roof slats which connect together in pairs a the apex by the same castellation method. Windows and doors are provided by printed card pieces, the top and bottom of which are bent over to slip between the wall slats. Some of these are quite delightful. Chimney pieces are also included.