Painkiller, I am not sure if I understood your correct.
The buildings are made of cardboard and Google street view captures printed with my HP inkjet on standard paper.
The raw captures are modified with DxO (a Mac app to remove the perspective) and Photoshop Element 10 (to cut the rectangle and to modify colors if required, in my case are prints much darker than the image appears on screen, they do also look to green, I have to add red to get a balanced printout). They are printed on plain paper with my HP Photosmart 2575 and covered with cheep rattle can dull coat from the home improvement market.
Front sides need usually three copies. Glue each of them to card stock. Two thin (.3mm/0.01") and one thicker card stock (1.0mm/0.04").
The first thin is the base and gets no further modification.
The second layer is the tick one and gets glued on the thin one after doors, gates, windows etc. are cut out and the edges ave been colored (mostly black with a felt pen).
The third layer are signs etc. cut out and glued on top of the second layer. Don't forget to color the edges with a felt pen.
A fourth "layer" may be parts like downspouts made from styrene, painted and glued on the second layer too.
That is all you need to do to get my type of front pages.
The first step of capturing building fronts will change your likes and dislikes
You start hating parked cars especially trucks in front of buildings. You hate city administrations that ruin fronts with lots of traffic signs and worst are trees planted on sidewalks just in front of "your" building