Assessor's Office

The Assessor's Office is responsible for identifying, classifying, and valuing all real and personal property in Grand County according to statutory provisions. The equitable assessment of property ensures a fair tax distribution relative to the value of similar properties.


2026 Property Valuation

Valuation Facts

  • For 2026, property is assessed as it existed on January 1, 2026.
  • The date study period was July 1, 2022 - June 30, 2024.  By State statute, the Assessor cannot consider any market data from after June 30, 2024 for the 2025/2026 valuation cycle.

How to appeal your valuation

  • Appealing your property valuation is not a protest regarding taxes but rather about property valuation and/or classification.  Taxes cannot be appealed through the Assessor's Office.
  • If, after reviewing the characteristics of your property and sales of similar properties, you feel your valuation is incorrect you may appeal your property valuation to the Assessor between May 4 and June 8, 2026.
  • Appeals to the Assessor may be filed on the Assessor website or by mailing, e-mailing or delivering a written appeal to the Assessor's office. 
  • The Assessor will make a decision and mail a Notice of Determination to you by June 30, 2026.

Current Year Real Property Protest Form

(Valid May 4 through June 8, 2026)
Protest Form links below will only be accessible during the 2026 protest period starting May 4, 2026 and ending on June 8, 2026.

NOTE: The COMPER sales tool only shows sales of improved property (homes).  The sales tool does not contain any data regarding sales of vacant land. 

Understanding your Prior Year Values

A temporary $55,000 reduction for residential property values in Colorado was implemented in 2023 and 2024 and ended for the 2025 property tax year. This reduction was part of a broader set of measures aimed at property tax relief. The $55,000 residential value reduction was intended to reduce taxable property values and lower property tax bills for 2023 and 2024, but it was a temporary measure and is no longer in effect.  

The 2023 and 2024 value reduction was subtracted from ALL residential improved property for tax purposes only, prior to the mailing of tax bills in January of 2024 and 2025. 

The 2023 and 2024 actual values shown under the Value Summary of residential accounts shown on the Assessor’s website also reflect the $55,000 value reduction.

eNotices

Both the Grand County Assessor's Office and the Treasurer's Office participate in the eNotice online program. Simply go to https://enoticesonline.com/ to log into the eNotice website. This program allows a property owner to receive their tax and valuation notices via email instead of by regular mail. As an added benefit, the website will have a repository of all the notices sent this way for future access by the property owner. Each owner that signs up will have a separate and distinct account. This is a convenient way to receive notices and have easy access to those notices at any time, day or night.