In order to create the basic layout of the ground floor, I started by creating rectangular 2D shapes that followed the floorplan. By clicking on the smaller edge, holding shift and dragging it, I could ensure that the rectangles followed the floorplan, creating a new face whenever there was a window, door or new wall. I then extruded these rectangular faces up to the necessary height of the ground floor walls. However, this method caused problems later on when it came to removing polygons for the windows and doors. So, I started the process again.
Having already created the extruded rectangles, I could see how many faces were required on each wall, so this time I created 3D cuboids from the standard primitives menu. In the parameters section I could change how many segments the shape had. By looking at the extruded rectangles and counting how many faces were required, I could set the number of width segments. I then set the number of height segments to four. The bottom segment for the brick layer at the bottom of the Guildhall, the next two layers could be used for window and door placement, and the top layer would be the space between the top of the window and door frames and the next level.
Once I had created all of the cuboids and positioned them correctly using the reference planes, I had to convert them all into editable polys in order to move the shape edges into the correct positions for windows and doors. This was easily achieved using the reference planes. Once the edges were positioned I could remove the polygons where the windows and doors would be situated.
Upon removing these polygons, I was left with open faces around the border of the window or door. In order to resolve this, I used the bridge tool. By clicking on the inner and outer edges I could create a new polygon that bridged the gap, thus leaving me with a solid shape with holes cut out for the windows and doors. By doing this to all of the walls, it leaves me with the basic layout of the ground floor level.
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