OFF MARKET

Off market aug 2005 for $2M

$3,859,654

Est. refi paymentEst. refi $13,348/mo

•

5,609

sq ft

821 Mapleton Ave, Boulder, CO 80304

About this home

Public Remarks: ELEGANT MAPLETON HILL HOME. ORIGINAL GORGEOUS FIR WOODWORK THROUGHOUT. DRAMATIC ENTRY & ENCLOSED VERANDA W/LEADED GALSS WINDOWS & INCREDIBLE STONE WORK. CUSTOM KITCHEN WITH 5-STAR RANGE, STAINLESS APPLIANCES, FIR CUPBOARDS, FORAL DINNING AND LIVING ROOM W/FIREPLACE. 5+BDRMS, HOME OFFIC, WALK-OUT LOWER LEVEL W/NANNY'S SUITE OR REC ROOMS. LRG GARAGE W/UNFINISHED STUDIO ABOVE. BIG YARD WITH MATURE TREES & FLOWER GARDENS. SHORT WALK TO PEARL STREET AND MT. SANITAS. 24HR NOTICE PREFERED.

Single-familyProperty Type

1905Year Built

8,500 sq ftLot Size

$688Est. Price/Sq.Ft.

2 car garageParking

Listed by • Goodacre & Company

Contact: 3034493434

Bought with Jane Stebbins • Meridian Properties, Inc.

•303-443-2299 (broker)

Redfin checked: a minute ago

•Source:IRES as Distributed by MLS Grid #455876

Redfin Estimate

$3,859,654

$1.9M since sold in August 2005$53K since September

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 17.9% higher than the average sale price ($3.27M) of 6 comparable homes.

SOLD AUG 14, 2026
$2,100,000
A
5 beds4 baths3,034 sq ft
320 Pearl St, Boulder, CO 80302
SOLD FEB 25, 2026
$2,700,000
B
4 beds3 baths3,675 sq ft
625 Concord Ave, Boulder, CO 80304
SOLD MAY 1, 2026
$2,651,475
C
5 beds4 baths3,549 sq ft
2449 5th St, Boulder, CO 80304
SOLD AUG 7, 2026
$4,765,000
D
6 beds5 baths5,537 sq ft
3007 10th St, Boulder, CO 80304
SOLD AUG 27, 2026
$3,295,000
E
4 beds3 baths2,463 sq ft
1013 Mapleton Ave, Boulder, CO 80304
SOLD AUG 7, 2026
$4,125,000
F
5 beds4.5 baths5,989 sq ft
2675 Dakota Pl Unit (newlands), Boulder, CO 80304

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Earn from this home

Sell

$2,962,025

Est. take-home

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Est. cash available

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Rent

$8,644/mo

Redfin rental estimate

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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

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See all

Provided by Redfin

Sale history for 821 Mapleton Ave

Year

Property tax

Land + Additions

Assessment*

2025

$26,946 (+2.5%)

$112,588 + $176,263

$288,851

2024

$26,289 (+1.8%)

$112,588 + $176,263

$288,851

2023

$25,833 (+3.7%)

$115,830 + $190,005

$305,835

2022

$24,906 (+2.2%)

$119,515 + $190,005

$309,520

2021

$24,365 (+15.9%)

$87,097 + $188,053

$275,150

2020

$21,017 (+1.6%)

$89,604 + $193,465

$283,069

2019

$20,695 (+15.5%)

$96,597 + $144,852

$241,449

2018

$17,918 (+3.2%)

$96,597 + $144,852

$241,449

2017

$17,358 (+6.1%)

$82,656 + $124,013

$206,669

2016

$16,364 (+5.6%)

$82,656 + $124,013

$206,669

2015

$15,496 (+19.6%)

$75,620 + $113,422

$189,042

2014

$12,961 (+2.3%)

$54,367 + $96,388

$150,755

2013

$12,676 (−4.6%)

$54,367 + $96,388

$150,755

2012

$13,290 (+0.9%)

$54,367 + $96,388

$150,755

2011

$13,173 (−6.2%)

$26,746 + $131,897

$158,643

2010

$14,044 (+7.1%)

$26,746 + $131,897

$158,643

2009

$13,114

$45,370 + $128,390

$173,760

Tax history for 821 Mapleton Ave

Year

Property tax

Land + Additions

Assessment*

2025

$26,946 (+2.5%)

$112,588 + $176,263

$288,851

2024

$26,289 (+1.8%)

$112,588 + $176,263

$288,851

2023

$25,833 (+3.7%)

$115,830 + $190,005

$305,835

2022

$24,906 (+2.2%)

$119,515 + $190,005

$309,520

2021

$24,365 (+15.9%)

$87,097 + $188,053

$275,150

2020

$21,017 (+1.6%)

$89,604 + $193,465

$283,069

2019

$20,695 (+15.5%)

$96,597 + $144,852

$241,449

2018

$17,918 (+3.2%)

$96,597 + $144,852

$241,449

2017

$17,358 (+6.1%)

$82,656 + $124,013

$206,669

2016

$16,364 (+5.6%)

$82,656 + $124,013

$206,669

2015

$15,496 (+19.6%)

$75,620 + $113,422

$189,042

2014

$12,961 (+2.3%)

$54,367 + $96,388

$150,755

2013

$12,676 (−4.6%)

$54,367 + $96,388

$150,755

2012

$13,290 (+0.9%)

$54,367 + $96,388

$150,755

2011

$13,173 (−6.2%)

$26,746 + $131,897

$158,643

2010

$14,044 (+7.1%)

$26,746 + $131,897

$158,643

2009

$13,114

$45,370 + $128,390

$173,760

*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

4.5

Stories

—

Lot width

—

Lot depth

—

Lot size

8,389 Sq. Ft.

Year renovated

1990

Sq. Ft.

5,373

Year built

1916

Style

Single Family Residential

County

Boulder County

APN

R0005794

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Oct 20, 2026.

Property details

Parking

Parking Features
Covered Spaces: 2
Garage: Yes
Garage Spaces: 2
Parking Features: Garage Door Opener, Alley Access, Heated Garage, Oversized

Interior

Bathroom Information
Bathrooms (Full): 3
Bathrooms (Half): 1
Bathrooms (Three Quarter): 1

Bedroom Information
Bedrooms Total: 5

Heating & Cooling
Cooling: Yes
Evaporative Cooling
Heating: Yes
Forced Air, Humidity Control

Interior Features
Accessibility Features: Low Carpet
2 or more H20 Heaters, Gas Range/Oven, Dishwasher, Refrigerator, Bar Fridge, Washer, Dryer, Microwave
Fireplace: Yes
Fireplace Features: Gas, Gas Logs Included, Living Room, Fireplace Tools Included
Flooring: Wood Floors
Study Area, In-Law Floorplan, High Speed Internet, Eat-in Kitchen, Separate Dining Room, Open Floorplan, Pantry, Stain/Natural Trim, Sun Space
Laundry Features: Washer/Dryer Hookups, Lower Level

Room Information
Basement: Full, Walk-Out Access, Daylight

Exterior

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

Land Information
Road Surface Type: Paved, Concrete

Lot Information
Horse(s): No
Lot Features: Curbs, Gutters, Fire Hydrant within 500 Feet, Lawn Sprinkler System, Historic District
Road Frontage Type: City Street, Alley
Zoning: RES

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

Subdivision Information
Subdivision Name: MAPLETON
MLS Area Major: Boulder

Building Information
Above Grade Finished Area: 4973
Building Area Total: 4973
Construction Materials: Block, Stone, Wood Shingle

Financial

Tax Information
Parcel Number: R0005794
Tax Annual Amount: 7547
Tax Year: 2004

Utilities

Utility Information
Utilities: Natural Gas Available, Electricity Available, Cable Available
Electric: Electric,XCEL
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: BROADWAY TO MAPLETON AVE, GO W TO HOME ON NORTH SIDE OF STREET.
Unparsed Address: 821 Mapleton Ave Boulder CO 80304
Street Number: 821
Street Name: Mapleton
Street Suffix: Ave
City: Boulder
State or Province: CO
County or Parish: Boulder
Country: US
Postal Code: 80304
Coordinates: -105.285869,40.020592
Latitude: 40.020592
Longitude: -105.285869

Public facts

Beds: 5
Baths: 4.5
Sq. Ft.: 5,373
Stories: —
Lot Size: 8,389 square feet
Style: Single Family Residential
Year Built: 1916
Year Renovated: 1990
County: Boulder County
APN: R0005794

Home facts updated by county records on Oct 20, 2026

Other

Documents & Disclosures
Documents Available: Title Report Available
Documents Count: 1

Listing Information
Attribution Contact: 3034493434
Close Price: $2,000,000
Photos Count: 11
Special Listing Conditions: Private Owner
Standard Status: Closed

Listing Date Information
Close Date: Friday, August 26, 2005
Cumulative Days on Market: 71
Days on Market: 71
Listing Contract Date: Friday, June 17, 2005
Modification Timestamp: Sunday, November 10, 2024 4:15 PM

Home Information
Levels: Three Or More
Window Features: Window Coverings, Wood Frames, Bay Window(s), Skylight(s), Storm Window(s)
Year Built: 1905

Green Information
Green Energy Efficient: Southern Exposure, Thermostat

Around this home

Schools

Whittier Elementary School

Public K-5 • Assigned • 0.9mi

6/10

Casey Middle School

Public 6-8 • Assigned • 0.4mi

5/10

Boulder High School

Public 9-12 • Assigned • 0.7mi

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

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

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

$3.67M – $4.44M

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Listing provided by REColorado as Distributed by MLS Grid

$259,999

Studio1 bath207,635 sq ft

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Listing provided by REColorado as Distributed by MLS Grid

OPEN TODAY, 1:30PM TO 3:30PM

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Home values near 821 Mapleton Ave

Data from public records.

Address	Redfin Estimate
839 Mapleton Avenue, Boulder, CO 2 Beds \| 1.5 Baths \| 2408 Sq. Ft.	$1,968,855
829 Mapleton Avenue, Boulder, CO 4 Beds \| 1.5 Baths \| 3370 Sq. Ft.	$2,662,803

Address	Redfin Estimate
811 Mapleton Avenue, Boulder, CO 5 Beds \| 4.5 Baths \| 4997 Sq. Ft.	$4,110,217
847 Mapleton Avenue, Boulder, CO 3 Beds \| 2 Baths \| 2525 Sq. Ft.	$1,736,982

Address	Redfin Estimate
745 Mapleton Avenue, Boulder, CO 5 Beds \| 3.5 Baths \| 4998 Sq. Ft.	$4,627,979
814 Maxwell Avenue, Boulder, CO 4 Beds \| 2 Baths \| 1668 Sq. Ft.	$1,682,463

Property information provided by IRES as Distributed by MLS Grid when last listed in 2005. 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 821 Mapleton Ave

Tax history for 821 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 821 Mapleton Ave

More real estate resources