I looked at it in photoshop and scaled it based on the 1/2" HC. The builder posted the correct dimensions.
You have 3 sections that are each 3' long x 3.5' wide. Each section is 10.5 sq ft, giving you 31.5 sq ft. You also have the area under the coop (which should be around 3.5' x 3.5') or...
Deep litter is less work. I'm in a neighborhood too and my coop is about 15' away from my neighbor's kitchen door and 8' from mine. DL keeps it smelling good and prevents flies from hanging around. The chickens do the work of turning it not you.
Also your coop needs to do the job of keeping...