The walls are foamcore with the exposed edges covered with tilegrout and then the whole painted with exterior masonry paint for texture. The tiles are Wills textured plasticard.
The base is thin MDF. The uprights are bamboo barbecue skewers smoothed to an approximately square profile and the beam along the front edge of the roof is a strip of balsa.
As per my usual policy, the building was designed to fit an available storage box - in this case one of the sturdy cardboard boxes our pay slips arrive in from the outsourced payroll contractor!