Hello, NECKO -
The City of Columbus City Planner working on our neighborhood plan, Todd Singer, asked me to pass this link on to the group: http://td.ci.columbus.oh.us/Bizdevelopment/PlanList/index.asp
There are several City of Columbus plans and studies that apply to our neighborhood on this site that are being reviewed as part of our neighborhood plan. Some are very comprehensive, others specific to design. Although many are a little dated, they are definitely worth a look.
The link is also posted on our website under "community links" at www.necko.org.
Have a great week - William