Thanks for the kind words.
Jonte, in fact it is extreme easy and fast to build those simple structures.
1. It is all about the front wall only. I cut a piece of 1,5mm styrene in the planned size and do the openings for doors and windows. An easy way to get the horizontal dimensions is Bing (it has a nice ruler in the lower right corner) and street view for vertical dimensions. You will find an automobile in front of most buildings. Put is vertical and you get a great scale. Their length (about 4.5m) is known and you can check the right dimensions with your car models.
2. Next step is to cut the sides from styrene and glue them to the front. I use little auxiliary pieced in the corners to hold the 90° angle.
3. Next is to put a support about 0,5-1cm below the top line of the front and the sides to hold the roof in place.
4. Now put the structure on the edge of blank styrene and get the dimensions of the building for the roof. Cut it out and glue it on the support.
5. Last mandatory step is to glue strip on top of the styrene walls to make them visual thicker.
6. Next steps are decoration of the front wall to get closer to the prototype. But the basic "box" is done in the previous steps.
Put doors and windows behind the openings from step 1. You might glue extra styrene around the door/gate openings to simulate thicker walls.
7. Painting is done from the rattle can.
- First layer is plastic primer intended to be used on plastic bumpers in the car shop
- Next is a light gray primer. It is a fine roof color and covers all pencil marks etc.
- Last is white primer for the front and side walls only. Do it firm and well covering for modern slab buildings or sloppy older buildings.
- The white layer is a good base for more details done with a brush.
8. Finally a black wash and some rust and dirt traces completes the simple structure.
It is no problem to do it within one day. It depends on the quality you are going for if they will be your final models or if you use them as fast and easy mock ups.
There may be two more steps necessary
9. If the roof is not a simple flat roof you may have to do some hidden construction to hold the roof. Those roof support is at least during construction required. The upper example got a back wall to support the roof.
10. Longer buildings will become very floppy. They need additional strength. I do like to use wood 1 * 1cm and glue it on the back side of the front wall (lower example) or glue a longer strip of styrene at a 90° angle to the inside of a wall (upper example where the back wall (to support the roof, ref 9) became instable).
Cut the window and door openings first. It is not so funny to learn that you just clued a wooden support across a line of planned windows...