Raleigh is a large city. One regulatory idea is that neighborhoods could petition the City to allow ADUs in their area. The process is referred to as creating an overlay district.
Overlay districts are used today. Some are historic overlay districts for preserving historic sections of the city such as Oakwood or Glenwood-Brooklyn. Others are neighborhood conservation overlay districts for preserving the architectural style of an area. A good example is the Five Points East neighborhood overlay conservation district.
For ADUs there could be two ways to apply overlays. In one way, ADUs would be permitted if a neighborhood requested them (the opt in approach). In the second approach, ADUs would, by default, be allowed everywhere but neighborhoods would create an overlay to disallow their use (the opt out approach).
For this poll, there are two additional options: allow ADUs everywhere without requiring any overlays and disallow ADUs everywhere without requiring overlays.