I hope you are the right person to send this file to. I know I am a bit late to the game, but I wish to submit a file for the "downloads" section of the web site. The file contains the layout I use, which has room for 41 2x2 houses on one block, and can easily reach the spacious residence level. That's up to 3444 residents! (Yes, I have tested it and used it extensively.) The second sheet in the Excel file contains a simple but effective layout for industrial areas.