The house seemed to defy logic as the entrances and exits were not physically possible. For example, the exit from the kitchen was supposed to exit into the garage but the location of the exit itself would have lead into the back hallway and bedroom area. This also didn't match the external shots of the house as the garage was clearly on the opposite side of the kitchen from this exit.
These inconsistencies appeared over time as the original layout would have worked. (The picture at right is how the house was set up in the pilot. The Girls would exit upstage right to get to Blanche's room and exit directly upstage to get to the linai. The rest of the bedrooms were down the hallway at the upstage left exit.) After the pilot Blanche's room was moved to the upstage left hallway and the exit for the linai was moved to the upstage right exit.
In addition to this, the angle of the hallway would suggest that the bedrooms could be seen through the kitchen window, and it would block the street. On many occasions the Girls would look out the window and reference something happening on the street. This would be physically impossible given this layout.
Rose's room, as time went on was moved from the end of the hallway (where Blanche's room was moved to) to the stage right side. This would place her room right outside of the back living room windows. Given this supposed layout you should be able to see the external wall of Rose's room from the living room but you cannot.
The upstage exit from the kitchen was often purported to be the garage but this, too, is physically impossible. As mentioned above if that was the case then the garage would occupy the same space as the back hallway and bedrooms which again does not match exterior shots of the house. (Like the picture, according to exterior shots of the house, the garage would have been located on the right side of the house when facing the home. Which would place it, in relation to the living room and kitchen, where the cameras actually were when they were shooting the show. So basically, we as viewers, watched the Girls from their garage.)