City of Ontario California Zoning Map

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The City of Ontario operates under the council-manager form of local government. The five members of the City Council are elected by the citizens as the …

Frequently asked questions

Q:
How can I determine what the zone of my property is? And how big and how high I can build my house or room addition?
A:
This information is available from the Planning Department. Their phone number is (909) 395-2036
Data from: BusinessWebsite
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Data from: Mapquest.com