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Online Services
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jMap Online Mapping
Find information about property, such as zoning, recent permit activity, tax information, nearby development applications and countless other features.
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Permit Search
Learn how to search for Jeffco permits and active cases.
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Online Applications
Jefferson County is excited to offer applicants the opportunity to make Pre-Application submittals through the On-Line Application system.
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Zoning Complaints
If you have a concern about your neighbor and whether the activity on his/her property meets zoning regulations file a complaint online.
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Distressed Properties
Access information on distressed properties in Jefferson County.
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Mandatory Application Documents
Information regarding how to submit Floodplain Permits, Land Disturbance Permits (Including Grading Permits, Notice of Intents and Natural Surface Trails), Minor Adjustments, Pre-Applications, Building Permits, Rezoning, Site Development Plan on our Online Application System.