Boulder County Assessor's Office Notice of Property Values
Appeal Deadline June 1
The Boulder County Assessor’s Office has completed its biennial reappraisal of all property in Boulder County and mailed notices of value to property owners on May 1, 2019. Per state statute, for 2019, the actual value for residential, commercial, industrial, and other property types reflects the market value of the property as of June 30, 2018. (Read full release here.)
Appeals Info for commercial and residential
All appeals must be filed by 11:59 p.m. on June 1. For more information on Boulder County's real property valuation appeals, visit boco.org/AssessorAppeals. Options are available to appeal via mail, online, and fax options, Assessor’s personnel will be available to hear appeals or answer questions in-person at several alternate locations throughout Boulder County.