Introduction. An overlay zone is a mapped district
superimposed on one or more established zoning districts which may
be used to impose supplemental restrictions on uses in these districts,
permit uses otherwise disallowed, or implement some form of density
bonus or incentive bonus program. The underlying zone persists with
the overlay procedures imposed as supplemental regulations. Overlay
zones are distinct from floating zones because of several features,
the most significant of which is that overlay zones are mapped, and
floating zones are not mapped.
