Appealing Real Property Valuation
The Assessor mails a notice of valuation to real property owners May 1 of each year. If a property owner believes the Assessor has incorrectly valued or classified the property, or that it was not valued fairly as compared to other properties, an appeal may be filed between May 1 and June 1. Any mail Appeal must be postmarked no later than June 1, 2021.
Due to COVID-19 restrictions, we cannot accommodate in-office appeals.
Agents may not file online. Only the owner of the property may file online. Agents must complete the paper form with the notice of value and appeal by mail and submit written permission from owner for the agent to appeal the property.
Residential Property Owners (excluding multi-family, commercial and land property owners) may file online.
- You may elect to complete the appeal form attached to your notice of valuation and mail it to:
Jefferson County Assessor
100 Jefferson County Parkway, Suite 2500
Golden, CO 80419-2500
- Deliver to our drop box located in the atrium at the same address
- You May File online by clicking the Online Appeal button below. You must specify the schedule number and check the verification box when filing your online appeal to be considered.
- Your protest submission must be postmarked or entered online no later than June 1.
Timing is everything
It is better to appeal early in May. The last few days of the appeal period are often very busy and you may experience delays.
How to Appeal an Assessment
To appeal an assessment, you should explain why you believe the assessor’s value is incorrect. It is important that you provide pertinent information supporting your estimate of value. The sales used to develop the current year actual value are listed on the assessor’s web site. By comparing your property to other similar properties that sold, you can determine whether your property has been fairly valued.
Click the Property Records Search link above for property and sales information.
Residential property sales information for most neighborhoods, along with additional property details, is available on this website. Get into our Property Records Search application, find your property and select "Neighborhood Sales."
Assessor Taxpayer Services
A complete list of residential property sales that occurred in your neighborhood will be sent to you upon receipt of a self-addressed, stamped envelope and description of your property. Mail your request to the above address. It will be up to you decide which, if any, of the sold properties are similar to yours in location, age, design and size.
Real Estate Information Line
Call 303-271-8666 for "inventory information" for up to three residences is provided over the phone. Simply supply the address(es), schedule number(s) or owner’s name.
The Assessment Process
For a description of the assessment methods the assessor uses, see the Assessment Process area of this website.
What to Expect After You Appeal
If you appeal, we will mail you a notice of determination by Aug. 15 of the year of the appeal. This notice will show the assessor’s office adjustment to value, if any, and explain how to appeal to the county's Board of Equalization (county commissioners) if you are still dissatisfied. You must file your appeal to the Board of Equalization (BOE) by Sept.15. The board must conclude hearings by Nov. 1 and notify petitioners of its decision within five business days.
If you wish to appeal a BOE decision, you must do so within 30 days of the decision. Your options are described in the board’s response.