As the name implies, overlay zoning districts "overlay" applicable base zoning district classifications to alter some or all of the base district zoning regulations that apply to particular sites.

Overlay districts work to modify or supplement the regulations imposed by a base zoning district when necessary to address special situations or accomplish specific objectives.

Overlay zoning is intended to be used when the base zoning applied to an area remains generally appropriate, but when an additional, modified or eliminated requirement could help implement the Village's planning goals or address an area-specific planning, design or land use regulation issue.

All applicable regulations of the underlying base zoning district apply to property in an overlay district unless otherwise expressly stated in the overlay district regulations.

When overlay district regulations conflict with regulations that otherwise apply in the underlying base zoning district, the regulations of the applicable overlay govern. If property is classified in multiple overlay districts and the regulations of one overlay district conflict with the regulations of another overlay district, the more restrictive regulation governs.

Overlay district regulations must be established, amended or terminated in accordance with the zoning chapter text amendment procedures of Division 90-520.

Except as otherwise expressly stated, Zoning Map amendments establishing, expanding or reducing the boundaries of an overlay district or terminating all or part of an overlay district must be processed in accordance with the Zoning Map amendment procedures of Division 90-530.