OFF MARKET

Off Market Sep 2010 for $675K

$1,720,924

Est. refi paymentEst. refi $4,499/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

$630Est. 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: 2 minutes ago

•Source:IRES as Distributed by MLS Grid #632170

Redfin Estimate

$1,720,924

$1.0M since sold in September 2010$115K since August

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 13.1% lower than the average sale price ($1.98M) of 6 comparable homes.

SOLD JUN 5, 2026
$1,835,000
A
4 beds3 baths2,558 sq ft
675 Dellwood Ave, Boulder, CO 80304
SOLD MAR 23, 2026
$2,225,000
B
3 beds3 baths2,940 sq ft
545 Mapleton Ave, Boulder, CO 80304
SOLD AUG 31, 2026
$2,500,000
C
4 beds3.5 baths3,161 sq ft
3062 11th St, Boulder, CO 80304
SOLD APR 30, 2026
$2,000,000
D
4 beds2 baths2,697 sq ft
3056 8th St, Boulder, CO 80304
Compass - Denver
SOLD JUL 8, 2026
$1,176,000
E
4 beds2.5 baths2,659 sq ft
623 Marine St, Boulder, CO 80302
SOLD SEP 1, 2026
$2,150,000
F
4 beds2.5 baths2,680 sq ft
1730 Bluff St, Boulder, CO 80304

Claim this home to receive a free report every month with insights on the changing estimate.

Earn from this home

Sell

$1,291,058

Est. take-home

List your home with Redfin and save $17,209

Refinance

Est. cash available

Get cash now or lower your monthly rate

Rent

$4,866/mo

Redfin rental estimate

List your home for rent

Market trends in 80304, CO

Last updated August 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

$695,000
2 beds2.5 baths1,368 sq ft
4555 13th St Unit 2A, Boulder, CO 80304
3D & VIDEO TOUR
$1,599,000
3 beds3 baths2,220 sq ft
1969 Joslyn Ct, Boulder, CO 80304
VIDEO TOUR
$1,050,000
Studio2 baths2,548 sq ft
3090 7th St, Boulder, CO 80304
Kristin Geesey • Iconic Colorado Properties, LLC
3D WALKTHROUGH
$1,675,000
5 beds3 baths2,318 sq ft
1464 Sumac Ave, Boulder, CO 80304
TR Swanwick • The Agency - Boulder
3D WALKTHROUGH
$1,300,000
3 beds2.5 baths2,435 sq ft
3955 Broadway St, Boulder, CO 80304
VIDEO TOUR
$2,800,000
3 beds3 baths4,438 sq ft
543 Linden Park Dr, Boulder, CO 80304
3D WALKTHROUGH
$438,000
1 bed1 bath622 sq ft
4655 13th St, Boulder, CO 80304
3D WALKTHROUGH
$1,499,000
3 beds3.5 baths3,131 sq ft
15 Arrowleaf Ct, Boulder, CO 80304
$2,395,000
5 beds4.5 baths3,649 sq ft
4165 17th St, Boulder, CO 80304
$247,926
3 beds2 baths1,443 sq ft
903 Rosewood Ave, Boulder, CO 80304
Khem Chauhan • 303 Living LLC
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

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

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)

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

$1.64M – $1.98M

Reach more buyers when you sell with Redfin. Save up to $17,209 in fees. 3 minutes to get started.

Need the cash from your home fast? Sell to .

Nearby similar homes

$1,595,000

6 beds3.5 baths2,427 sq ft

2212 Pine St, Boulder, CO 80302

3D WALKTHROUGH

$2,760,000

5 beds3.5 baths2,344 sq ft

3115 3rd St, Boulder, CO 80304

$3,250,000

4 beds5 baths4,969 sq ft

1127 Juniper Ave, Boulder, CO 80304

Shelby Sampson • The Agency - Denver

3D WALKTHROUGH

$3,750,000

4 beds5 baths4,108 sq ft

2237 4th St, Boulder, CO 80302

Trenton Stringari • Genesis Realty

$432,000

2 beds2 baths1,059 sq ft

2227 Canyon Blvd Unit B-263, Boulder, CO 80302

VIDEO TOUR

$7,995,000

5 beds4.5 baths5,590 sq ft

2235 Knollwood Dr, Boulder, CO 80302

New listings for sale in 80304

$695,000

2 beds2.5 baths1,368 sq ft

4555 13th St Unit 2A, Boulder, CO 80304

3D & VIDEO TOUR

$1,599,000

3 beds3 baths2,220 sq ft

1969 Joslyn Ct, Boulder, CO 80304

VIDEO TOUR

$1,050,000

Studio2 baths2,548 sq ft

3090 7th St, Boulder, CO 80304

Kristin Geesey • Iconic Colorado Properties, LLC

3D WALKTHROUGH

$1,675,000

5 beds3 baths2,318 sq ft

1464 Sumac Ave, Boulder, CO 80304

TR Swanwick • The Agency - Boulder

3D WALKTHROUGH

$1,300,000

3 beds2.5 baths2,435 sq ft

3955 Broadway St, Boulder, CO 80304

VIDEO TOUR

$2,800,000

3 beds3 baths4,438 sq ft

543 Linden Park Dr, Boulder, CO 80304

3D WALKTHROUGH

$438,000

1 bed1 bath622 sq ft

4655 13th St, Boulder, CO 80304

3D WALKTHROUGH

$1,499,000

3 beds3.5 baths3,131 sq ft

15 Arrowleaf Ct, Boulder, CO 80304

$2,395,000

5 beds4.5 baths3,649 sq ft

4165 17th St, Boulder, CO 80304

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.	$2,194,120
312 Mapleton Ave, Boulder, CO 3 Beds \| 2 Baths \| 2086 Sq. Ft.	$1,542,086

Address	Redfin Estimate
332 Mapleton Ave, Boulder, CO 5 Beds \| 3.5 Baths \| 4095 Sq. Ft.	$2,591,430
409 Mapleton Ave, Boulder, CO 4 Beds \| 2 Baths \| 2414 Sq. Ft.	$1,593,342

Address	Redfin Estimate
304 Mapleton Ave, Boulder, CO 4 Beds \| 3.5 Baths \| 2216 Sq. Ft.	$2,779,267
424 Mapleton Ave, Boulder, CO 3 Beds \| 3.5 Baths \| 2966 Sq. Ft.	$2,891,099

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

Download the Redfin App on the Apple App Store

Download the Redfin App from the Google Play Store

Join us

Become an Agent

Get referrals

Careers

Find homes faster

About us

Find us

Subsidiaries

Affiliated Business

Countries

United States

Canada

Updated September 2025: By searching, you agree to the Terms of Use, and Privacy Policy.

Do not sell or share my personal information.

REDFIN and all REDFIN variants, WALK SCORE, and the R logos, are trademarks of Redfin Corporation, registered or pending in the USPTO.

California DRE #01521930

Redfin is licensed to do business in New York as Redfin Real Estate. NY Standard Operating Procedures

New Mexico Real Estate Licenses

TREC: Info About Brokerage Services, Consumer Protection Notice

All mortgage lending products and information are provided by Rocket Mortgage, LLC | NMLS #3030; www.NMLSConsumerAccess.org. Licensed in 50 states. This site is not authorized by the New York State Department of Financial Services for mortgage solicitation or loan applications activities related to properties located in the State of New York.

Redfin Corporation is an affiliated business of Rocket Limited Partnership. Each company, and their subsidiaries, are separate legal entities operated and managed through its own management and governance structures.

If you are using a screen reader, or having trouble reading this website, please call Redfin Customer Support for help at 1-844-759-7732.

REDFIN IS COMMITTED TO AND ABIDES BY THE FAIR HOUSING ACT AND EQUAL OPPORTUNITY ACT. READ REDFIN'S FAIR HOUSING POLICY AND THE NEW YORK STATE FAIR HOUSING NOTICE.

GreatSchools Ratings provided by GreatSchools.org.

80026 homes for sale
80027 homes for sale
80301 homes for sale
80303 homes for sale
80305 homes for sale

Houses for rent in Boulder	Agents near me	Fort Collins, CO homes for sale	Boulder Housing Market
Houses for sale near me	Denver, CO homes for sale	Aurora, CO homes for sale
Land for sale near me	Colorado Springs, CO homes for sale	Arvada, CO homes for sale
Open Houses near me	Boulder, CO homes for sale	Boulder Property Records
Condos for sale near me	Littleton, CO homes for sale	CO New Listings

Denver homes for sale
Arvada homes for sale
Golden homes for sale

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