A detailed look at the Hill's residence

[terrence]

OK, I have been trying to figure out the floor plan for the Hill's residence. I understand that this feat is almost impossible to do if you take into consideration how many times the floor plan has changed to suit the plot ("Naked Ambition") of the episode. But I would like to compile a floor plan of the most feasible layout. Is there any information available in my aid? Has someone already gone through the trouble of doing this?

The reason that I am trying to do this is so I can create a map based on the Hill's and surrounding characters residence for a game mod. There is very little information that I could find to aid me in my research. Even in the show entire houses in the neighborhood are changed ("Movin' On Up"). So this has become a daunting task as you can see. My main questions are, what is the most common floor plan to the Hill's residence throughout the series and where are the other characters houses located adjacent to the Hill's?

I have added a sketch of what I know so far about the Hill residence and an overall view of the alley to identify the other characters residence. Please make note of any discrepancies.