If you have questions about property valuation and property tax, visit boco.org/2023Valuation.

Assessor A-Z

Assessor A-Z

General

Address Change

Assessor/Treasurer’s Address Change Form

Agricultural Property

Appeals

Abatements

Calendar

Notice of Determination

El Proceso de Apelación

Remote Locations and Dates

Assessment & Valuation

Assessment Abstracts

Assessment Calendar

Mass Appraisal

Notice of Valuation

BPP NOV

Real Property NOV

Property Tax Calculation

Property Valuation Process

Business Personal Property

BPP Declarations

Certification of Values to Taxing Entities

Certification Letters

Commercial Property

Income and Expense Questionnaire

Possessory Interest

Exemptions

Senior Tax Exemption

Disabled Veterans Tax Exemption

Foreclosures

Forms

Glossary

Mill Levies & Taxing Districts

Mobile Homes

Manufactured Homes FAQ

Property Sales & Data

Property Sales

Data Download

Property Search

Property Search Help

Recent Sales

Sales Report Codes & Descriptions

Comparable Sales

Sorting Sales Data In Excel

2023/2024 Comparable Sales

2021/2022 Comparable Sales

2019/2020 Comparable Sales

2017/2018 Comparable Sales

Contact Us

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

Email

Mailing Address
PO Box 471
Boulder, CO 80306-0471

*New as of Jan 4, 2021*
Monday thru Thursday
Hours: 7:30 am–5 pm
CLOSED Friday

Locations

Assessor Boulder & Longmont Drop Boxes

Boulder
1325 Pearl Street, 2nd floor
Boulder, CO 80302
Monday thru Thursday
Hours: 7:30 am–5 pm
Map & Directions

Longmont
515 Coffman Street, Suite 114
Monday ONLY
Hours: 7:30 am–5 pm
Map & Directions

Lafayette
1376 Miners Drive, Unit 105
Tuesday ONLY
Hours: 7:30 am–5 pm
Map & Directions

Website
www.BoulderCountyAssessor.org

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