Taking certain liberties with reality once more, I've made a small block of flats for my layout.

I used various bits from my box of scraps, plus plasticard, card and even baking paper(!)

I "raised the block up" with a section of plasticard painted to represent concrete, and a piece from a European N Scale kit to give the impression of underground parking or something like that...

The doors and windows are from spares, the windows are dressed with baking paper net curtains (the kind that were very popular in the period I'm modelling!)

I used 1mm styrene sheet to make the balconies (probably not prototypical over a busy railway line, but still.)  

Brick pattern plasticard strips - leftover and already painted from a previous part of the layout - were used for the obvious.  With card pieces used to represent rendered exterior wall.

Very thin styrene square rod was added to the top of the building to finish off.