Zoning restrictions in the city vary by property address. To find out the specific zoning designation of an address in the City of Sonoma, view the zoning map and contact the Planning Department for more information. You can also reference Sonoma’s Geographic Information System (GIS) which provides instant access to property characteristics such as zoning, assessor’s information and flood zone designation, as well as city-wide aerial photographs. Note: This web-based service requires the use of the Silverlight plug-in.