Need Help on a Building Project

I know I'm a month late, but...

When modeling a brick facade, the lower cost method is get some brick colored chipboard/mat board, and draft the bricks on. Use hard colored pencils to draw in the mortar joints. You can then shade and color the bricks to the desired scheme. This is time consuming and requires a good hand.

A hobby shop might sell brick facade, but getting the scale right could prove tricky.

For windows, some frosted, translucent plastic (thin) is a good material. You can make the mullions out of very thin basswood, painted to the desired color. Another option is to sand down some plexi.