Parts I'm using are Evergreen Styrene Clapboard for the walls, Grandt-line and Tichy Windows, Slaters stone sheet for the foundation, and small amounts of other Evergreen styrene sheet for doors, platforms etc.                                                                    Heres a plan from the original article I have

 all the walls were cut to shape, and all windows and doors cutout. I had missed cutting out the upper door in the first panel in this photo, but luckily realised before putting the walls together. I'm always keen to jump when I start a new scratchbuild, but it pays to slow down a bit, to avoid mistakes. While the pieces are flat, is also the time to add any detail, such as loose boards, (just run your blade along the bottom of some boards to lift their edges slightly), board joints and corner trim.

here's the walls assembled so they are actually starting to look like something.

The styrene I'm using is 1mm thick, so once the walls are together they tend to bow in slightly so I put a "floor" in th middle of the structure.