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

Visit the Sheriff’s Office website for the outcome of the Marshall Fire investigation.

2017 Residential Neighborhoods & Market Areas

2017/2018 Tax Years: Residential Sales

Base Period Residential Sales from July 1, 2014–June 30, 2016, by Market Area

In areas where sales between the July 1, 2014 to June 30, 2016 period are few, the Assessor is allowed to use comparable sales going back as far as five years prior to June 30, 2016.

Apartment Buildings

Apartment Buildings PDF XLSX

Single Family Residential Properties

Below are sales of single family homes, duplexes, and triplexes.

Market Area Maps for Single Family Properties

Single Family Residences
Market Area 101 PDF XLSX Boulder Area Map
Market Area 102 PDF XLSX Boulder Area Map
Market Area 103 PDF XLSX Boulder Area Map
Market Area 104 PDF XLSX Boulder Area Map
Market Area 105 PDF XLSX Boulder Area Map
Market Area 106 PDF XLSX Boulder Area Map
Market Area 107 PDF XLSX Boulder Area Map
Market Area 108 PDF XLSX Boulder Area Map
Market Area 201 PDF XLSX County Overview Map
Market Area 202 PDF XLSX County Overview Map
Market Area 301 PDF XLSX County Overview Map
Market Area 302 PDF XLSX County Overview Map
Market Area 303 PDF XLSX County Overview Map
Market Area 304 PDF XLSX County Overview Map
Market Area 401 PDF XLSX Boulder Area Map
Southeast County Map
Market Area 402 PDF XLSX Southeast County Map
Market Area 403 PDF XLSX Southeast County Map
Market Area 404 PDF XLSX Southeast County Map
Market Area 405 PDF XLSX Southeast County Map
Market Area 406 PDF XLSX Southeast County Map
Market Area 407 PDF XLSX Southeast County Map
Market Area 501 PDF XLSX Longmont Area Map
Market Area 502 PDF XLSX Longmont Area Map
Market Area 503 PDF XLSX Longmont Area Map
Market Area 504 PDF XLSX Longmont Area Map
Market Area 505 PDF XLSX Longmont Area Map
Market Area 506 PDF XLSX Longmont Area Map

Condominiums

These sales are provided by market area.

Residential Condominiums
Market Area 630 & 631 – Boulder Condos PDF XLSX
Market Area 632 & 634 – Erie, Gunbarrel, Lafayette, Louisville, Lyons, Niwot, & Superior Condos PDF XLSX
Market Area 633 – Longmont Condos PDF XLSX

Manufactured Housing

Manufactured homes are also referred to as Mobile Homes. For a more detailed description, see “manufactured housing” in the glossary

Manufactured Housing PDF XLSX

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