This is one of four sets of backdrop buildings I am making for the "butt end" of my layout, which I have neglected for some time, but the first completed, since it is farthest away from the aisle and I want to work back from this corner.
The photo below shows this four and one-half foot set of backdrop building fronts I made to go into this very awkward corner of the layout. It is at the back corner of a shelf area that is under the edge of the eave of the house, these is barely seven inches of height avaiable to the leftmost in the photo at the backdrop's position. the area hard to get to and harder to see to and there room for depth in any buildings here, behind the double mainline tracks. These buildings are not that detailed, but then they are nearly five feet from the closest viewer, and there will be two rows of real 3-D model buildings between them and the edge of the layout: when all those other buildings are back in place, one will only see bits of these between those two rows of higher and closer buildings. Still, I wanted to make them look nice and it was fun to try this technique out.
These building fronts are printed paper on foamboard. Below is the larger of the two pieces I made and positioned in the photo above. I cut and trimmed black foamboard to fit the area and then worked up printed building fronts, using a variety of styles. From the left:
The first building National Optics Inc., I made in PowerPoint by making a brickshaped rectangle, copying it a bunch of times, building a portion of a wall by positioning them next towone another, brick-like, changed the hue of a few bricks randomly just a bit, then copying and positioned them over and over again - the result into a large brick building front. I similarly drew and "installed" windows, doors, loading dock doors, etc.
The next building, BF Goodrich, can't read it in the Photo but it is second from left, was actually made by taking a photo of a completed Ameritown building I have made for another part of the layout, and working with it a bit before printing it out. The next building, is a photo of a building I found on the internet - I deliberately wanted to experiment with all three methods. None of them is easier or better than the others: they all work well. The final three to the right use each of those techniques again. I printed out copies on paper, measured and adjusted size, and finally printed them in color and trimmed and glued them on . . .
It is doubtful one will be able to see but I had fun adding so details, including outside lights, ventilators and AC units in the windows and open windows and doors and figures, etc.