Andym is correct, PP buildings need to have exterior textures (photo style a la Sally 4th or textured plasticard) added - they are HDF shells intended for doll houses or for people who like to model houses (I wonder what they'd make of the interest of our gaming community?). That said, they're pretty good models with more realistic internal layouts than any of the others out there. The prices aren't unreasonable, once you factored in buying the other stuff you'll need it'll work out pretty similar to 4Grounds (also good ) offerings.