OFF MARKET

Off market sep 2010 for $675K

$1,679,925

Est. refi paymentEst. refi $4,590/mo

•

2,730

sq ft

320 Mapleton Ave, Boulder, CO 80304

About this home

Public Remarks: AMAZING VALUE/POTENTIAL! RARE LARGER THAN MOST LOTS with ALLEY ACCESS in MAPLETON HILL! CHARMING remodeled WALK-OUT RANCH on LARGE PRIVATE lush yard w/VIEWS. STEPS to SANITAS trail & DOWNTOWN! Hardwoods, skylight, 2 fireplaces, deck off dining. Lower level is WALKOUT with its OWN SEPARATE ENTRANCE, perfect MOTHER-IN-LAW w/full remodeled kitchen, family room, office w/sliding door, 3rd bedrooml. APPROVED PLANS FOR 2-CAR DETACHED GARAGE W/STUDIO! QUIET location w/many possibilities & potential!

Single-familyProperty Type

1966Year Built

8,239 sq ftLot Size

$615Est. Price/Sq.Ft.

1 car garageParking

Listed by Brigitte Furst • Non-IRES

Contact: 9705939002

Bought with Paul Dart • RE/MAX of Boulder, Inc

•303-449-7000 (broker)

•REMAX@boulderco.com (broker)

Redfin checked: a minute ago

•Source:IRES as Distributed by MLS Grid #632170

Redfin Estimate

$1,679,925

$1.0M since sold in September 2010$79K since October

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 6.8% lower than the average sale price ($1.80M) of 6 comparable homes.

SOLD SEP 29, 2026
$1,825,000
A
4 beds2.5 baths2,161 sq ft
2850 6th St, Boulder, CO 80304
SOLD JUN 5, 2026
$1,835,000
B
4 beds3 baths2,558 sq ft
675 Dellwood Ave, Boulder, CO 80304
SOLD MAR 23, 2026
$2,225,000
C
3 beds3 baths2,940 sq ft
545 Mapleton Ave, Boulder, CO 80304
SOLD SEP 9, 2026
$1,080,000
D
3 beds2 baths1,549 sq ft
3011 13th St, Boulder, CO 80304
SOLD SEP 1, 2026
$1,350,000
E
4 beds2 baths1,974 sq ft
3190 8th St, Boulder, CO 80304
SOLD AUG 31, 2026
$2,500,000
F
4 beds3.5 baths3,161 sq ft
3062 11th St, Boulder, CO 80304

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Earn from this home

Sell

$1,255,413

Est. take-home

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Refinance

Est. cash available

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Rent

$5,092/mo

Redfin rental estimate

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Market trends in 80304, CO

Last updated October 2026

Buyer's Market

Seller's Market

Balanced market

Sale-to-list price

98.0%

+0.6% MoM

Median sale price

$1.3M

$39K MoM

Avg. days on market

66d

3 days MoM

Recently sold homes

100

1 MoM

New listings for sale

NEW 24 HRS AGO
$240,000
1 bed1 bath400 sq ft
2711 Mapleton Ave #5, Boulder, CO 80304
$799,000
3 beds2 baths1,130 sq ft
4145 Riverside Ave, Boulder, CO 80304
3D WALKTHROUGH
$650,000
2 beds1 bath1,214 sq ft
2950 Broadway St #1, Boulder, CO 80304
3D WALKTHROUGH
$570,000
2 beds1 bath942 sq ft
1299 Yellow Pine Ave, Boulder, CO 80304
Carolyn Dooling • Compass - Denver
OPEN TODAY, 11AM TO 1PM
$1,995,000
5 beds4.5 baths4,223 sq ft
1840 Hawthorn Ave, Boulder, CO 80304
$300,000
1 bed1 bath400 sq ft
2711 Mapleton Ave #1, Boulder, CO 80304
Lydia Moy • WK Real Estate
3D & VIDEO TOUR
$1,050,000
2 beds1 bath1,474 sq ft
3115 Broadway St, Boulder, CO 80304
$1,175,000
3 beds4.5 baths2,992 sq ft
555 Laramie Blvd, Boulder, CO 80304
3D WALKTHROUGH
$1,450,000
4 beds2.5 baths2,554 sq ft
1780 Redwood Ave, Boulder, CO 80304
$985,000
4 beds2 baths1,812 sq ft
2445 Forest Ave, Boulder, CO 80304
See all

Provided by Redfin

Sale history for 320 Mapleton Ave

Date

Event

Price

IRES as Distributed by MLS Grid #686849

Oct 1, 2012

Listing Removed

—

Aug 30, 2012

Price Changed

$1,280,000

$469/sq ft

Jul 18, 2012

Listed

$1,395,000

$511/sq ft

IRES as Distributed by MLS Grid #632170

Sep 3, 2010

Sold

$675,000

$247/sq ft

Jun 21, 2010

Listed

$739,000

$271/sq ft

IRES as Distributed by MLS Grid #241651

Mar 30, 2001

Sold

$567,000

$208/sq ft

Oct 16, 2000

Listed

$579,900

$212/sq ft

Public Records

May 30, 1996

Sold

$379,000

$139/sq ft

Public Records

Oct 22, 1990

Sold

$145,000

$53/sq ft

Year

Property tax

Land + Additions

Assessment*

2025

$12,032 (+2.6%)

$98,600 + $26,744

$125,344

2024

$11,731 (+1.8%)

$98,600 + $26,744

$125,344

2023

$11,528 (+5.9%)

$99,200 + $34,284

$133,484

2022

$10,889 (+4.9%)

$102,885 + $34,284

$137,169

2021

$10,383 (+17.3%)

$86,319 + $30,934

$117,253

2020

$8,852 (+1.6%)

$88,803 + $31,825

$120,628

2019

$8,717 (+3.9%)

$72,573 + $29,122

$101,695

2018

$8,390 (+3.2%)

$72,573 + $29,122

$101,695

2017

$8,128 (+16.0%)

$67,824 + $28,951

$96,775

2016

$7,004 (+5.6%)

$67,824 + $28,951

$96,775

2015

$6,633 (+24.0%)

$59,620 + $21,301

$80,921

2014

$5,349 (+2.2%)

$21,412 + $40,811

$62,223

2013

$5,232 (+39.9%)

$21,412 + $40,811

$62,223

2012

$3,740 (−14.3%)

$21,412 + $40,811

$62,223

2011

$4,362 (−16.0%)

$31,840 + $12,800

$44,640

2010

$5,192 (+7.1%)

$26,905 + $36,298

$63,203

2009

$4,848

$51,900 + $12,340

$64,240

Tax history for 320 Mapleton Ave

Year

Property tax

Land + Additions

Assessment*

2025

$12,032 (+2.6%)

$98,600 + $26,744

$125,344

2024

$11,731 (+1.8%)

$98,600 + $26,744

$125,344

2023

$11,528 (+5.9%)

$99,200 + $34,284

$133,484

2022

$10,889 (+4.9%)

$102,885 + $34,284

$137,169

2021

$10,383 (+17.3%)

$86,319 + $30,934

$117,253

2020

$8,852 (+1.6%)

$88,803 + $31,825

$120,628

2019

$8,717 (+3.9%)

$72,573 + $29,122

$101,695

2018

$8,390 (+3.2%)

$72,573 + $29,122

$101,695

2017

$8,128 (+16.0%)

$67,824 + $28,951

$96,775

2016

$7,004 (+5.6%)

$67,824 + $28,951

$96,775

2015

$6,633 (+24.0%)

$59,620 + $21,301

$80,921

2014

$5,349 (+2.2%)

$21,412 + $40,811

$62,223

2013

$5,232 (+39.9%)

$21,412 + $40,811

$62,223

2012

$3,740 (−14.3%)

$21,412 + $40,811

$62,223

2011

$4,362 (−16.0%)

$31,840 + $12,800

$44,640

2010

$5,192 (+7.1%)

$26,905 + $36,298

$63,203

2009

$4,848

$51,900 + $12,340

$64,240

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

Public record

Public record
Zoning
Permits

Beds

Baths

Stories

Lot width

—

Lot depth

—

Lot size

8,240 Sq. Ft.

Year renovated

1995

Sq. Ft.

2,398

Year built

1966

Style

Single Family Residential

County

Boulder County

APN

R0000904

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Sep 2, 2026.

Property details

Parking

Parking Features
Covered Spaces: 1
Garage: Yes
Attached Garage: Yes
Garage Spaces: 1

Interior

Bathroom Information
Bathrooms (Full): 2
Bathrooms (Half): 0
Bathrooms (Three Quarter): 0

Bedroom Information
Bedrooms Total: 3

Heating & Cooling
Cooling: Yes
Central Air
Heating: Yes
Hot Water, Baseboard

Interior Features
Accessibility Features: Level Lot, Level Drive, Main Floor Bath, Main Level Bedroom
Gas Range/Oven, Self Cleaning Oven, Dishwasher, Refrigerator, Washer, Dryer, Disposal
Fireplace: Yes
Fireplace Features: 2+ Fireplaces, Living Room, Family/Recreation Room Fireplace
Flooring: Wood Floors
Study Area, In-Law Floorplan, High Speed Internet, Separate Dining Room, Open Floorplan
Laundry Features: Main Level

Room Information
Basement: Full, Walk-Out Access, Built-In Radon

Exterior

Exterior Features
Fencing: Fenced, Wood
Patio and Porch Features: Patio, Deck
Roof: Composition

Land Information
Road Surface Type: Paved

Lot Information
Horse(s): No
Lot Features: Curbs, Sidewalks, Lawn Sprinkler System, Level, Within City Limits
Other Structures: Storage
Zoning: RL-1

Property Information
Property Type: Residential
View: Yes
Waterfront: No

Subdivision Information
Subdivision Name: Mapleton Park
MLS Area Major: Boulder

Building Information
Above Grade Finished Area: 2705
Building Area Total: 2705
Construction Materials: Brick/Brick Veneer, Stone
Foundation Details: Slab

Financial

Tax Information
Parcel Number: R0000904
Tax Annual Amount: 4848
Tax Year: 2009

Financial Information
Listing Terms: Cash, Conventional

Utilities

Utility Information
Utilities: Natural Gas Available, Cable Available
Gas: Natural Gas,Xcel
Sewer: City Sewer

Location

HOA Information
Association: No
Association Fee: 0

School Information
High School District: Boulder Valley Dist RE2
Elementary School: Whittier
Middle or Junior School: Casey
High School: Boulder

Location Information
Directions: West from 4th & Mapleton
Unparsed Address: 320 Mapleton Ave Boulder CO 80304
Street Number: 320
Street Name: Mapleton
Street Suffix: Ave
City: Boulder
State or Province: CO
County or Parish: Boulder
Country: US
Postal Code: 80304
Coordinates: -105.29242,40.02023
Latitude: 40.02023
Longitude: -105.29242

Public facts

Beds: 3
Baths: 2.0
Sq. Ft.: 2,398
Stories: 1.0
Lot Size: 8,240 square feet
Style: Single Family Residential
Year Built: 1966
Year Renovated: 1995
County: Boulder County
APN: R0000904

Home facts updated by county records on Sep 2, 2026

Other

Miscellaneous Information
Exclusions: arbor in backyard

Listing Information
Attribution Contact: 9705939002
Close Price: $675,000
Photos Count: 23
Possible Use: Single Family
Special Listing Conditions: Private Owner
Standard Status: Closed

Listing Date Information
Close Date: Friday, September 3, 2010
Cumulative Days on Market: 75
Days on Market: 75
Listing Contract Date: Monday, June 21, 2010
Modification Timestamp: Friday, July 26, 2024 5:21 PM

Home Information
Direction Faces: North
Window Features: Window Coverings, Bay Window(s), Skylight(s), Double Pane Windows
Year Built: 1966

Green Information
Green Energy Efficient: Southern Exposure

Around this home

Schools

K - 12
Preschool & daycare

Whittier Elementary School

Public K-5 • Assigned • 1.2mi

6/10

Casey Middle School

Public 6-8 • Assigned • 0.7mi

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

4/10 Fire Factor

2% chance of being in a wildfire in next 30 years

3/10 Heat Factor

8 days above 90° expected this year, 20 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)

44°

22°

51°

29°

63°

40°

64°

40°

70°

47°

83°

57°

90°

64°

84°

60°

76°

53°

65°

43°

54°

33°

53°

33°

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

$1.60M – $1.93M

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New listings for sale in 80304

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Listing provided by REColorado as Distributed by MLS Grid

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3D WALKTHROUGH

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Home values near 320 Mapleton Ave

Data from public records.

Address	Redfin Estimate
403 Mapleton Ave, Boulder, CO 3 Beds \| 2 Baths \| 3254 Sq. Ft.	$1,970,472
312 Mapleton Ave, Boulder, CO 3 Beds \| 2 Baths \| 2086 Sq. Ft.	$1,545,557
400 Mapleton Ave, Boulder, CO 4 Beds \| 3.5 Baths \| 3476 Sq. Ft.	$3,243,475
2305 4th St, Boulder, CO 4 Beds \| 4 Baths \| 4329 Sq. Ft.	$2,968,487
2299 4th St, Boulder, CO 5 Beds \| 4 Baths \| 5365 Sq. Ft.	$6,467,999
2321 4th St, Boulder, CO 2 Beds \| 2 Baths \| 2280 Sq. Ft.	$1,932,307
2424 4th St, Boulder, CO 3 Beds \| 2 Baths \| 2234 Sq. Ft.	$1,776,689

Address	Redfin Estimate
332 Mapleton Ave, Boulder, CO 5 Beds \| 3.5 Baths \| 4095 Sq. Ft.	$2,506,699
409 Mapleton Ave, Boulder, CO 4 Beds \| 2 Baths \| 2414 Sq. Ft.	$1,599,430
328 Mapleton Ave, Boulder, CO 2 Beds \| 1 Baths \| 600 Sq. Ft.	$1,332,610
2385 4th St, Boulder, CO 4 Beds \| 3.5 Baths \| 3047 Sq. Ft.	$2,403,132
421 Highland Ave, Boulder, CO 4 Beds \| 3.5 Baths \| 4505 Sq. Ft.	$3,844,488
2323 4th St, Boulder, CO 5 Beds \| 5 Baths \| 5267 Sq. Ft.	$6,768,613
245 Willow Glen Ct, Boulder, CO 6 Beds \| 4.5 Baths \| 3418 Sq. Ft.	$3,970,546

Address	Redfin Estimate
304 Mapleton Ave, Boulder, CO 4 Beds \| 3.5 Baths \| 2216 Sq. Ft.	$2,575,859
424 Mapleton Ave, Boulder, CO 3 Beds \| 3.5 Baths \| 2966 Sq. Ft.	$2,854,894
330 Mapleton Ave, Boulder, CO 3 Beds \| 2 Baths \| 2626 Sq. Ft.	$2,155,595
403 Highland Ave, Boulder, CO 3 Beds \| 3.5 Baths \| 5192 Sq. Ft.	$4,869,608
2325 4th St, Boulder, CO 2 Beds \| 2 Baths \| 1282 Sq. Ft.	$1,369,263
2315 4th St, Boulder, CO 4 Beds \| 3 Baths \| 3150 Sq. Ft.	$2,686,939
275 Brookside Ct, Boulder, CO 4 Beds \| 3.5 Baths \| 3786 Sq. Ft.	$3,483,123

Property information provided by IRES as Distributed by MLS Grid when last listed in 2010. This data may not match . Learn more.

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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 320 Mapleton Ave

Tax history for 320 Mapleton Ave

Public record

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 320 Mapleton Ave

More real estate resources