Undated plan for a group of 55 cottages.
There were 48 cottages built in Jonestown, arranged in eight rows of six. “Housing Site 102” above is perhaps an initial plan for that group of cottages or perhaps the plans for a future group of cottages which were never built.
From readable dimensions, it appears that each cottage sits on a plot of approximately 30ft by 50ft. Cottage size would appear to be 15ft by 30 ft.
If clearer pdfs or original documents can be obtained, more exact measurements should be readable and or scalable.