Google street view image for 1804 Mapleton Ave, Boulder, CO 80304

Off market mar 2024 for $1.4M

—

Est. refi paymentEst. refi $8,612/mo

•

3 ba

•

2,555

sq ft

1804 Mapleton Ave, Boulder, CO 80304

About this home

1804 Mapleton Ave is a 2,555 square foot property on a 7,169 square foot lot with 4 bedrooms and 3 bathrooms. - it last sold on March 26, 2024 for $1,475,000.

1925Year Built

7,169 sq ftLot Size

$577Price/Sq.Ft.

1 spaceParking

Source:Public Records

Redfin Estimate

Unfortunately, we don't have enough data to generate an accurate Estimate at this time.

Market trends in 80304, CO

Last updated September 2026

Buyer's Market

Seller's Market

Balanced market

Sale-to-List Price

97.3%

+0.1% MoM

Median sale price

$1.5M

$2K MoM

Avg. days on market

72d

9 days MoM

Recently sold homes

120

8 MoM

New listings for sale

NEW 5 MINS AGO
$315,000
1 bed1 bath592 sq ft
3745 Birchwood Dr #34, Boulder, CO 80304
NEW 41 MINS AGO
$1,249,000
3 beds4 baths2,848 sq ft
419 Wild Horse Cir, Boulder, CO 80304
Gregory Pickett • Compass - Denver
OPEN SAT, 12PM TO 2PM
$1,399,000
4 beds3 baths2,818 sq ft
3845 Birchwood Dr, Boulder, CO 80304
OPEN OCT 24, 10:30AM TO 12:30PM
$174,669
2 beds1 bath926 sq ft
2610 Iris Ave #105, Boulder, CO 80304
NEW 20 HRS AGO
$1,100,000
1 bed1.5 baths1,122 sq ft
2930 Broadway St #203, Boulder, CO 80304
OPEN SUN, 1PM TO 3PM
$1,700,000
3 beds2.5 baths1,577 sq ft
3111 14th St, Boulder, CO 80304
OPEN SAT, 10AM TO 2PM
$850,000
3 beds2 baths1,339 sq ft
3575 19th St, Boulder, CO 80304
EARLY ACCESS
$2,150,000
6 beds3 baths4,337 sq ft
3555 16th St, Boulder, CO 80304
$1,050,000
3 beds1.5 baths1,272 sq ft
2745 6th St, Boulder, CO 80304
$3,495,000
4 beds4 baths4,517 sq ft
1425 Upland Ave, Boulder, CO 80304
Patrick Dolan • RE/MAX of Boulder
See all

Provided by Redfin

Sale history for 1804 Mapleton Ave

Year

Property tax

Land + Additions

Assessment*

2025

$8,111 (+9.9%)

$50,000 + $33,369

$83,369

2024

$7,380 (+0.8%)

$50,000 + $33,369

$83,369

2023

$7,325 (−2.5%)

$52,059 + $31,021

$83,080

2022

$7,514 (+2.6%)

$52,059 + $34,706

$86,765

2021

$7,327 (+3.2%)

$56,474 + $22,828

$79,302

2020

$7,098 (+1.6%)

$59,381 + $24,003

$83,384

2019

$6,990 (+26.2%)

$49,199 + $32,347

$81,546

2018

$5,537 (+3.2%)

$49,199 + $32,347

$81,546

2017

$5,364 (+2.4%)

$40,320 + $23,544

$63,864

2016

$5,236 (+5.6%)

$40,320 + $23,544

$63,864

2015

$4,958 (−8.9%)

$33,989 + $26,507

$60,496

2014

$5,442 (+2.2%)

$30,248 + $33,058

$63,306

2013

$5,323 (+5.2%)

$30,248 + $33,058

$63,306

2012

$5,061 (+0.9%)

$30,248 + $33,058

$63,306

2011

$5,017 (−0.4%)

$29,054 + $31,362

$60,416

2010

$5,037 (+7.1%)

$29,054 + $31,362

$60,416

2009

$4,703

$39,400 + $22,920

$62,320

Tax history for 1804 Mapleton Ave

Year

Property tax

Land + Additions

Assessment*

2025

$8,111 (+9.9%)

$50,000 + $33,369

$83,369

2024

$7,380 (+0.8%)

$50,000 + $33,369

$83,369

2023

$7,325 (−2.5%)

$52,059 + $31,021

$83,080

2022

$7,514 (+2.6%)

$52,059 + $34,706

$86,765

2021

$7,327 (+3.2%)

$56,474 + $22,828

$79,302

2020

$7,098 (+1.6%)

$59,381 + $24,003

$83,384

2019

$6,990 (+26.2%)

$49,199 + $32,347

$81,546

2018

$5,537 (+3.2%)

$49,199 + $32,347

$81,546

2017

$5,364 (+2.4%)

$40,320 + $23,544

$63,864

2016

$5,236 (+5.6%)

$40,320 + $23,544

$63,864

2015

$4,958 (−8.9%)

$33,989 + $26,507

$60,496

2014

$5,442 (+2.2%)

$30,248 + $33,058

$63,306

2013

$5,323 (+5.2%)

$30,248 + $33,058

$63,306

2012

$5,061 (+0.9%)

$30,248 + $33,058

$63,306

2011

$5,017 (−0.4%)

$29,054 + $31,362

$60,416

2010

$5,037 (+7.1%)

$29,054 + $31,362

$60,416

2009

$4,703

$39,400 + $22,920

$62,320

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

Zoning and permits

Zoning
Permits

RL-1

Residential-Low 1 District

Primarily single-family detached dwelling units with some duplexes and attached dwelling units at low to very low residential densities.

Permitted uses

Include but are not limited to:

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

Property details

Interior

Basement Information
Basement Sq. Ft: 224
Basement Type: Unfinished

Bathroom Information
# of Full Baths: 3

Heating & Cooling
Heating Type: Forced Air

Room Information
# of Rooms: 10

Exterior

Exterior Information
Physical Condition: Average
Construction Type: Frame
Building Construction Quality: Average
Exterior Wall: Frame Wood
Roof Covering Type: Asphalt
Roof Shape Type: Asphalt
Building Type: Duplex/Triplex

Property Information
Subdivision Name: BOULDER O T EAST & WEST & NORTH
Living Sq. Ft: 2,555
Ground Floor Sq. Ft: 1,830
Building Sq. Ft: 2,779
Stories Type: 2 Plus
Legal Description: LOT 1 & 10 FT STRP ADJ ON N BLK 22 BOULDER NORTH

Parking & Garage Information
Parking Type: Detached Garage
Garage/Parking Sq. Ft: 200
Garage / Carport Type: Detached

Lot Information
# of Buildings: 1
Land Sq. Ft: 7,169
Legal Lot Number: 1
Legal Block Number: 22
Municipality Name: BOULDER
Acres: 0.1646
County Use Description: DUPLEX/TRIPLEX

Financial

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

Public facts

Beds: 4
Baths: 3.0
Sq. Ft.: 2,555
Stories: —
Lot Size: 7,169 square feet
Style: Other
Year Built: 1925
Year Renovated: 1975
County: Boulder County
APN: R0008463

Home facts updated by county records on Sep 2, 2026

Around this home

Schools

Whittier Elementary School

Public K-5 • Assigned • 0.2mi

6/10

Casey Middle School

Public 6-8 • Assigned • 0.4mi

5/10

Boulder High School

Public 9-12 • Assigned • 0.6mi

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

4/10 Fire Factor

1% chance of being in a wildfire in next 30 years

3/10 Heat Factor

7 days above 90° expected this year, 19 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

Try the sun simulator tool to see how light moves across the property at different times of day and year.

Provided by Shadowmap

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New listings for sale in 80304

NEW 5 MINS AGO

$315,000

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3745 Birchwood Dr #34, Boulder, CO 80304

NEW 41 MINS AGO

$1,249,000

3 beds4 baths2,848 sq ft

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OPEN SAT, 12PM TO 2PM3D WALKTHROUGH

$1,399,000

4 beds3 baths2,818 sq ft

3845 Birchwood Dr, Boulder, CO 80304

OPEN OCT 24, 10:30AM TO 12:30PM

$174,669

2 beds1 bath926 sq ft

2610 Iris Ave #105, Boulder, CO 80304

NEW 20 HRS AGO

$1,100,000

1 bed1.5 baths1,122 sq ft

2930 Broadway St #203, Boulder, CO 80304

OPEN SUN, 1PM TO 3PM

$1,700,000

3 beds2.5 baths1,577 sq ft

3111 14th St, Boulder, CO 80304

OPEN SAT, 10AM TO 2PM

$850,000

3 beds2 baths1,339 sq ft

3575 19th St, Boulder, CO 80304

EARLY ACCESSCOMPASS COMING SOON

$2,150,000

6 beds3 baths4,337 sq ft

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Home values near 1804 Mapleton Ave

Data from public records.

Address	Redfin Estimate
1829 Mapleton Avenue, Boulder, CO 2 Beds \| 1 Baths \| 1092 Sq. Ft.	$1,363,865
1844 Mapleton Avenue, Boulder, CO 4 Beds \| 3 Baths \| 2383 Sq. Ft.	$1,953,353

Address	Redfin Estimate
1803 Mapleton Avenue, Boulder, CO 4 Beds \| 2 Baths \| 2120 Sq. Ft.	$1,751,463
1836 Mapleton Avenue, Boulder, CO 3 Beds \| 3 Baths \| 2210 Sq. Ft.	$2,222,010

Address	Redfin Estimate
1736 Mapleton Avenue, Boulder, CO 4 Beds \| 2.5 Baths \| 3619 Sq. Ft.	$2,230,097
1837 Mapleton Avenue, Boulder, CO 3 Beds \| 2 Baths \| 2466 Sq. Ft.	$1,904,957

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GreatSchools Ratings provided by GreatSchools.org.

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About this home

Redfin Estimate

Market trends in 80304, CO

Sale history for 1804 Mapleton Ave

Tax history for 1804 Mapleton Ave

Zoning and permits

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 1804 Mapleton Ave

More real estate resources