Stage 1 fire restrictions, enacted for unincorporated areas of western Boulder County.

Notice of Valuation

About Your Notice of Valuation

Notices of Valuation (NOVs) are designed to explain the assessment of your property in detail.

Please review the details of your property listed on the notice. If corrections are needed we encourage you to contact us. Our accurate description of your property means equitable assessments for everyone.

You may call us at any time for additional information at 303‑441‑3530. Thank you for your interest.

Sample Notices of Valuation

You may call us at any time for additional information, at 303-441-3530.

Sample 2023 Notices of Valuation

Search for BPP Notice of Valuation

Notice of Valuation for 2023/2024 Tax Years

2023 NOVs were sent to property owners in Boulder County on May 1, 2023. In addition to identifying the property, the full page NOVs for residential properties contain:

  • Location, market area, and neighborhood
  • Description of the property’s characteristics
  • Photo

Notice of Valuation for 2024 Intervening Tax Year

For most properties, 2024 taxable value will remain the same as that of 2023, as reflected on the 2023 NOV owners receive by mail in May 2023. Property owners will receive a 2024 Notice of Value only if there was some change to the property from 2023. For these properties, the Assessor’s Office must value your property as it exists on January 1, 2024, and determine its probable market value as of June 30, 2022.

Sample Notices of Valuation

Search for Real Property Notice of Valuation

Contact Us


Phone: 303-441-3530
Fax: 303-441-4996


Mailing Address

PO Box 471
Boulder, CO 80306-0471

Hours: 7:30 a.m. to 5 p.m.
Closed Friday


Assessor Boulder and Longmont Drop Boxes


1325 Pearl St., 2nd floor
Boulder, CO 80302
Hours: 7:30 a.m. to 5 p.m.
Map and Directions Boulder Location


515 Coffman St., Suite 114
Hours: 7:30 a.m. to 5 p.m.
Monday only
Map and Directions Longmont Location


1755 S Public Road
Hours: 7:30 a.m. to 5 p.m.
Tuesday only
Map and Directions Lafayette Location