Google street view image for 2423 Mapleton Ave, Boulder, CO 80304

Off market

$874,822

•

1 ba

•

883

sq ft

2423 Mapleton Ave, Boulder, CO 80304

About this home

2423 Mapleton Ave is a 883 square foot house on a 7,374 square foot lot with 2 bedrooms and 1 bathroom. Based on Redfin's Boulder data, we estimate the home's value is $874,822.

Single-familyProperty Type

1950Year Built

7,374 sq ftLot Size

$991Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$874,822

$7,000 since September

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 9.9% lower than the average sale price ($971K) of 5 comparable homes.

SOLD OCT 9, 2026
$760,000
A
2 beds1 bath1,020 sq ft
2328 Walnut St, Boulder, CO 80302
SOLD MAY 20, 2026
$877,500
B
3 beds1 bath1,323 sq ft
2991 25th St, Boulder, CO 80304
Listing provided by metrolistCO
SOLD JUN 30, 2026
$1,175,000
C
2 beds1.5 baths1,296 sq ft
2915 16th St, Boulder, CO 80304
SOLD AUG 7, 2026
$783,000
D
3 beds1.5 baths1,095 sq ft
3150 19th St, Boulder, CO 80304
SOLD JUN 16, 2026
$1,258,823
E
2 beds1 bath964 sq ft
2915 11th St, Boulder, CO 80304

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Earn from this home

Sell

$822,522

Est. take-home

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Rent

$2,806/mo

Redfin rental estimate

List your home for rent

Market trends in 80304, CO

Last updated September 2026

Buyer's Market

Seller's Market

Balanced market

Sale-to-list price

97.4%

+0.1% MoM

Median sale price

$1.3M

$110K MoM

Avg. days on market

63d

8 days MoM

Recently sold homes

103

15 MoM

New listings for sale

COMING SOON
$2,650,000
4 beds1 bath2,179 sq ft
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$949,000
3 beds3 baths1,816 sq ft
1219 Linden Ave, Boulder, CO 80304
NEW 25 HRS AGO
$270,000
2 beds1 bath792 sq ft
2707 Valmont Rd Unit 311D, Boulder, CO 80304
COMING SOON
$1,600,000
4 beds3 baths3,215 sq ft
626 Poplar Ave, Boulder, CO 80304
$768,000
3 beds2 baths1,552 sq ft
1683 Yellow Pine Ave, Boulder, CO 80304
$2,189,200
3 beds2.5 baths3,368 sq ft
316 Pine Tree Ln, Boulder, CO 80304
$4,975,000
5 beds6 baths4,687 sq ft
661 Maxwell Ave, Boulder, CO 80304
Karolyn Merrill • RE/MAX of Boulder
$4,995,000
4 beds4.5 baths3,633 sq ft
516 Maxwell Ave, Boulder, CO 80304
$425,000
1 bed1 bath469 sq ft
3025 Broadway St #18, Boulder, CO 80304
$165,000
3 beds2 baths1,184 sq ft
4500 19 St #623, Boulder, CO 80304
Diana Keck • Keck Real Estate
See all

Provided by Redfin

Sale history for 2423 Mapleton Ave

As the MLS and public records start to fill up, we'll list the details here.

Year

Property tax

Land + Additions

Assessment*

2025

$5,958 (+4.5%)

$61,864 + $6,874

$68,738

2024

$5,700 (+1.8%)

$61,864 + $6,874

$68,738

2023

$5,601 (+17.1%)

$64,038 + $7,525

$71,563

2022

$4,784 (+4.9%)

$67,723 + $7,525

$75,248

2021

$4,562 (+15.0%)

$52,617 + $5,846

$58,463

2020

$3,968 (+1.6%)

$54,131 + $6,015

$60,146

2019

$3,907 (+6.5%)

$42,185 + $10,553

$52,738

2018

$3,669 (+3.2%)

$42,185 + $10,553

$52,738

2017

$3,554 (+8.3%)

$38,304 + $11,218

$49,522

2016

$3,281 (+5.6%)

$38,304 + $11,218

$49,522

2015

$3,107 (+53.4%)

$33,432 + $12,434

$45,866

2014

$2,026 (+2.2%)

$14,328 + $17,202

$31,530

2013

$1,982 (+5.0%)

$14,328 + $17,202

$31,530

2012

$1,887 (−25.5%)

$14,328 + $17,202

$31,530

2011

$2,531 (−10.6%)

$29,452 + $1,035

$30,487

2010

$2,830 (+7.1%)

$29,452 + $1,035

$30,487

2009

$2,643

$27,860 + $7,160

$35,020

Tax history for 2423 Mapleton Ave

Year

Property tax

Land + Additions

Assessment*

2025

$5,958 (+4.5%)

$61,864 + $6,874

$68,738

2024

$5,700 (+1.8%)

$61,864 + $6,874

$68,738

2023

$5,601 (+17.1%)

$64,038 + $7,525

$71,563

2022

$4,784 (+4.9%)

$67,723 + $7,525

$75,248

2021

$4,562 (+15.0%)

$52,617 + $5,846

$58,463

2020

$3,968 (+1.6%)

$54,131 + $6,015

$60,146

2019

$3,907 (+6.5%)

$42,185 + $10,553

$52,738

2018

$3,669 (+3.2%)

$42,185 + $10,553

$52,738

2017

$3,554 (+8.3%)

$38,304 + $11,218

$49,522

2016

$3,281 (+5.6%)

$38,304 + $11,218

$49,522

2015

$3,107 (+53.4%)

$33,432 + $12,434

$45,866

2014

$2,026 (+2.2%)

$14,328 + $17,202

$31,530

2013

$1,982 (+5.0%)

$14,328 + $17,202

$31,530

2012

$1,887 (−25.5%)

$14,328 + $17,202

$31,530

2011

$2,531 (−10.6%)

$29,452 + $1,035

$30,487

2010

$2,830 (+7.1%)

$29,452 + $1,035

$30,487

2009

$2,643

$27,860 + $7,160

$35,020

*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.

Zoning

RMX-1

Residential-Mixed 1 District

Mixed density residential areas with a variety of single-family, detached, duplexes, and multi-family units that will be maintained; and where existing structures may be renovated or rehabilitated.

Permitted uses

Include but are not limited to:

Religious facility
Housing-Single unit
Housing-Multiple units
Educational/school
Recreation
Agriculture-Cropland
Park & open space

Property details

Interior

Bathroom Information
# of Full Baths: 1

Heating & Cooling
Heating Type: Wall Furnace

Room Information
# of Rooms: 5

Exterior

Exterior Information
Physical Condition: Average
Building Style Type: Ranch
Construction Type: Frame
Building Construction Quality: Average
Exterior Wall: Frame Wood
Roof Covering Type: Asphalt
Roof Shape Type: Asphalt
Building Type: Single Family

Property Information
Subdivision Name: BOULDER O T EAST & WEST & NORTH
Living Sq. Ft: 883
Ground Floor Sq. Ft: 883
Building Sq. Ft: 883
# of Stories: 1
Stories Type: 1
Legal Description: LOT 9 BLK 185 & 10 FT STRP ADJ ON NORTH BOULDER EAST O T

Lot Information
# of Buildings: 1
Land Sq. Ft: 7,374
Legal Lot Number: 9
Legal Block Number: 185
Municipality Name: BOULDER
Acres: 0.1693
County Use Description: 1 FAMILY RESID

Financial

Assessor Information
Assessment Year: 2025
Tax Area: RE2-BLDR-NCWD-UDFC

Public facts

Beds: 2
Baths: 1.0
Sq. Ft.: 883
Stories: 1.0
Lot Size: 7,374 square feet
Style: Single Family Residential
Year Built: 1950
Year Renovated: 1950
County: Boulder County
APN: R0005815

Home facts updated by county records on Sep 2, 2026

Around this home

Schools

Whittier Elementary School

Public K-5 • Assigned • 0.3mi

6/10

Casey Middle School

Public 6-8 • Assigned • 0.8mi

5/10

Boulder High School

Public 9-12 • Assigned • 1.0mi

9/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Climate risks

1/10 Flood Factor

Minimal risk of a flood reaching the building in the next 30 years

2/10 Fire Factor

0.00% chance of being in a wildfire in next 30 years

3/10 Heat Factor

7 days above 91° expected this year, 17 days in 30 years

1/10 Wind Factor

Minimal risk of severe winds over next 30 years

2/10 Air Factor

2 unhealthy days expected this year, 2 days in 30 years

Provided by First Street

Historical weather

Boulder, CO • 80304

Average low and high temperatures (°F)

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Sun exposure

In this area, properties receive around 10.5 hours in June and 6 hours in December, placing it above the U.S. average for solar exposure.

10.5 hrs

6 hrs

JuneDecember

Provided by Shadowmap

Estimated sale price

$832,000 – $1.01M

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Nearby similar homes

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New listings for sale in 80304

COMING SOONVIDEO TOUR

$2,650,000

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2003 Balsam Dr, Boulder, CO 80304

$949,000

3 beds3 baths1,816 sq ft

1219 Linden Ave, Boulder, CO 80304

NEW 25 HRS AGO

$270,000

2 beds1 bath792 sq ft

2707 Valmont Rd Unit 311D, Boulder, CO 80304

COMING SOON

$1,600,000

4 beds3 baths3,215 sq ft

626 Poplar Ave, Boulder, CO 80304

$768,000

3 beds2 baths1,552 sq ft

1683 Yellow Pine Ave, Boulder, CO 80304

$2,189,200

3 beds2.5 baths3,368 sq ft

316 Pine Tree Ln, Boulder, CO 80304

$4,975,000

5 beds6 baths4,687 sq ft

661 Maxwell Ave, Boulder, CO 80304

Listing provided by REColorado as Distributed by MLS Grid

$4,995,000

4 beds4.5 baths3,633 sq ft

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$425,000

1 bed1 bath469 sq ft

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Home values near 2423 Mapleton Ave

Data from public records.

Address	Redfin Estimate
2499 Mapleton Ave, Boulder, CO 3 Beds \| 2.5 Baths \| 2983 Sq. Ft.	$1,500,942
2493 Mapleton Ave, Boulder, CO 4 Beds \| 3.5 Baths \| 3041 Sq. Ft.	$1,599,832

Address	Redfin Estimate
2481 Mapleton Ave, Boulder, CO 4 Beds \| 3.5 Baths \| 3165 Sq. Ft.	$1,766,970
2487 Mapleton Ave, Boulder, CO 3 Beds \| 3.5 Baths \| 3269 Sq. Ft.	$1,709,184

Address	Redfin Estimate
2475 Mapleton Ave, Boulder, CO 4 Beds \| 4.5 Baths \| 3359 Sq. Ft.	$1,720,281
2344 Mapleton Ave, Boulder, CO 3 Beds \| 1.5 Baths \| 1452 Sq. Ft.	$1,280,714

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GreatSchools Ratings provided by GreatSchools.org.

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About this home

Redfin Estimate

Earn from this home

Market trends in 80304, CO

Sale history for 2423 Mapleton Ave

Tax history for 2423 Mapleton Ave

Zoning

Property details

Around this home

Schools

Lifestyle

Climate risks

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 80304

Home values near 2423 Mapleton Ave

More real estate resources