Create a rectangle using rectangular shape tool.
Press Ctrl+T. Right Click and select "skew". Adjust the nodes to get the shape as shown.
Double click the layer to open layer style window. Apply settings as shown.
Duplicate the layer. Press Ctrl+T. Right click and select Flip Horizontal and place on the other side. Change the gradient overlay settings.
Create "Diamond Card" shape using custom shape tool. Apply gradient overlay layer style.
Duplicate all the layers and place just next to it.
Similarly create more boxes adjacent to each other with different color and sizes to create a building structure.
Select the top wall layer. Enable "subtract from shape area" at the top bar. Duplicate the wall path and scale down to create door.
Duplicate the box. Scale down as shown.
Duplicate the box several times and place as shown to create stairs.
Create wall as shown using same technique we used for the boxes.
Type company name. Press Ctrl+T. Right Click and select skew. Adjust the nodes according to the wall.
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