Hornby TT120 Catalogue

Well there you go, I always thought that OO/HO was about right for PlaRail, but I guess I'm just basing that on the rolling stock rather than the PlaRail buildings themselves.  I guess if they were made to OO/HO scale then they would likely be too delicate for small hands which would explain it, so instead they are made more 'toy-like' to give them the robustness they need for the real intended audience. ;-)