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

2019/2020 Non-Residential Sales

Prior 2019/2020 Tax Years: Non-Residential Sales

2019/2020 Comparable Sales

2019/2020 Residential Sales

Base Period Sales from July 1, 2016–June 30, 2018

Commercial Properties

Commercial Sales by Use PDF XLSX

Commercial Condominiums

Commercial Condominium Sales PDF XLSX

Commercial & Industrial Detailed Valuation Information

Data used to determine the actual value of Commercial and Industrial properties and includes detailed valuation information on cost, income, and market approaches. This is not a comprehensive list of all properties in Boulder County, and is provided in addition to the lists of comparable commercial property sales.

Commercial & Industrial Property Summary Data XLSX

Vacant Land Sales

Sorted by market area. The land size under “acres” is not necessarily the surveyed land size, but may only be a GIS (Geographic Information systems) measurement. Sales include residential, commercial, and industrial lands, and vacant land with minor structures.

Vacant Property Sales PDF XLSX

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