2021/2022 Residential Sales

Prior 2021/2022 Tax Years: Residential Sales

2021/2022 Comparable Sales

2021/2022 Non-Residential Sales

Comparable Residential Sales Mapping Tool

Base Period Sales from July 1, 2018–June 30, 2020

In areas with few sales, the Assessor is allowed to use comparable sales going back up to five years.

Apartment Buildings

Apartment Buildings PDF XLSX

Single Family Residential Properties

Sales of single family homes, duplexes, and triplexes.

Market Area Maps for Single Family Properties

Comparable properties are often found in the same Market Area, which are groups of neighborhoods that have similar trends in the market. Boulder County uses these areas to establish market value for mass appraisal purposes.

Single Family, Duplex, and Triplex Residences
Market Area 101 PDF XLSX Boulder and Gunbarrel Map
Market Area 102 PDF XLSX Boulder and Gunbarrel Map
Market Area 103 PDF XLSX Boulder and Gunbarrel Map
Market Area 104 PDF XLSX Boulder and Gunbarrel Map
Market Area 105 PDF XLSX Boulder and Gunbarrel Map
Market Area 106 PDF XLSX Boulder and Gunbarrel Map
Market Area 107 PDF XLSX Boulder and Gunbarrel Map
Market Area 201 PDF XLSX Countywide Map
Market Area 202 PDF XLSX Countywide Map
Market Area 301 PDF XLSX Countywide Map
Market Area 302 PDF XLSX Countywide Map
Market Area 303 PDF XLSX Countywide Map
Market Area 304 PDF XLSX Countywide Map
Market Area 401 PDF XLSX Boulder and Gunbarrel Map
Market Area 402 PDF XLSX Erie, Lafayette, Louisville, and Superior Map
Market Area 403 PDF XLSX Erie, Lafayette, Louisville, and Superior Map
Market Area 404 PDF XLSX Erie, Lafayette, Louisville, and Superior Map
Market Area 405 PDF XLSX Erie, Lafayette, Louisville, and Superior Map
Market Area 501 PDF XLSX Longmont and Niwot Map
Market Area 502 PDF XLSX Longmont and Niwot Map
Market Area 503 PDF XLSX Longmont and Niwot Map
Market Area 505 PDF XLSX Longmont and Niwot Map
Market Area 507 PDF XLSX Longmont and Niwot Map

Townhomes

Residential Townhomes
Market Area 108 – Boulder, East of Broadway and All Other Townhomes PDF XLSX
Market Area 109 – Boulder, West of Broadway and Downtown Townhomes PDF XLSX
Market Area 407 – Erie, Gunbarrel, Lafayette, Louisville, Niwot, and Superior Townhomes PDF XLSX
Market Area 506 – Longmont Townhomes PDF XLSX

Condominiums

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

Manufactured Housing

Manufactured homes are also referred to as Mobile Homes.

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

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

Locations

Assessor Boulder and Longmont Drop Boxes

Boulder

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

Longmont

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

Lafayette

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