http://www.introversion.co.uk/prisonarchitect/
I did one better than my last video, and made what I think is the smallest possible prison based on my previously stated rules. Utilities may lie outside the walls, and the original deliveries/garbage spaces do not count. However there must be atleast one cell, a kitchen, canteen, shower and yard. Whatever space these take up make up the end-size. In this case it was 7x7 meters, which is 49 square meters.
