Sorry beeing late with my 2 pence... I'm no more interested in doing Inno's job by passing here...
My N°1 nearly didn't change his "random" layout as he usually dismantles a lot of buildings to make room for the settlements... he used disconnected lvl1 residences and workshops to keep all the Amuni's buildings in one spot.
Myself, I used a "wheat ear" design with most of my streets going from top left to bottom right and connected to one main street starting from the Mainhall on the top and descending to the left corner... I put 3 WS on the bottom side of a secondary street along with other buildings of the same size facing another secondary street where I had 3 or 4 residences along with other buildings of the same size... inbetween those 2 streets, I let a gap the width of the trapmakers and goldsmithes... I only used 4 of each fully upgraded so the whole stuff fit in one single row...
Have fun