OFF MARKET

Off market nov 2020 for $635K

$872,141

Est. refi paymentEst. refi $4,270/mo

•

3,740

sq ft

4021 Riley Dr, Longmont, CO 80503

About this home

Coveted Renaissance Reserve Home - Open Floor Plan with Large Family - Move-In Ready - Meticulously Maintained - New Carpet - Dual Walk-In Closets - Dual Zone Heating/AC - Hi-Efficiency Furnace - New Whole House Fan - New Impact Roof - Pet Friendly Fenced Yard - Backs to Open Space in Front & Back - Mountain Views - Covered Rear Deck for Entertaining - Easy & Quick Access to Boulder and Gunbarrel - Easy Access to Hiking/Biking Trails - Unfinished Basement/Rough-In Ready Plumbing - Home Warranty - NO SHOWINGS UNTIL SATURDAY, SEPTEMBER 26TH!

Single-familyProperty Type

2003Year Built

6,360 sq ftLot Size

$233Est. Price/Sq.Ft.

3 car garageParking

Listed by David Scott • Slifer Smith & Frampton-Bldr

Bought with Kamla Chopra • Slifer Smith & Frampton-Niwot

Redfin checked: 2 minutes ago

•Source:REColorado as Distributed by MLS Grid #IR924992

Listing provided courtesy of Metrolist,Inc. (REColorado)

Redfin Estimate

$872,141

$237K since sold in November 2020$11K since September

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 12.6% higher than the average sale price ($774K) of 6 comparable homes.

SOLD JUL 17, 2026
$825,000
A
4 beds3 baths2,952 sq ft
4625 Portofino Dr, Longmont, CO 80503
SOLD FEB 9, 2026
$791,000
B
4 beds3.5 baths3,280 sq ft
4321 Lucca Dr, Longmont, CO 80503
SOLD SEP 25, 2026
$745,000
C
4 beds3 baths4,272 sq ft
1013 Boxelder Cir, Longmont, CO 80503
Listing provided by metrolistCO
SOLD MAR 16, 2026
$770,000
D
4 beds3 baths2,554 sq ft
1615 Sicily Dr, Longmont, CO 80503
SOLD OCT 16, 2026
$825,000
E
4 beds3.5 baths3,389 sq ft
1657 Dorothy Cir, Longmont, CO 80503
SOLD AUG 20, 2026
$690,000
F
3 beds2.5 baths2,571 sq ft
4227 San Marco Dr, Longmont, CO 80503

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Earn from this home

Sell

$371,995

Est. take-home

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Refinance

Est. cash available

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Rent

$3,642/mo

Redfin rental estimate

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Market trends in 80503, CO

Last updated September 2026

Buyer's Market

Seller's Market

Balanced market

Sale-to-list price

98.5%

+0.4% MoM

Median sale price

$727K

$6K MoM

Avg. days on market

59d

8 days MoM

Recently sold homes

127

10 MoM

New listings for sale

OPEN OCT 31, 12PM TO 2PM
$1,375,000
4 beds4 baths4,207 sq ft
4231 Pebble Beach Dr, Longmont, CO 80503
Sheila Lebsock • Distinct Real Estate LLC
NEW 13 HRS AGO
$825,000
3 beds2.5 baths3,389 sq ft
5107 Linda Pl, Longmont, CO 80503
NEW 20 HRS AGO
$1,389,000
3 beds3 baths2,680 sq ft
8586 N 55th St, Longmont, CO 80503
3D WALKTHROUGH
$1,000,000
3 beds2 baths1,600 sq ft
10272 Macedonia St, Longmont, CO 80503
Erin Neptune • Ed Prather Real Estate
OPEN SAT, 12:30PM TO 2:30PM
$459,000
3 beds2.5 baths1,576 sq ft
690 Stonebridge Dr, Longmont, CO 80503
OPEN SUN, 1PM TO 3PM
$385,000
2 beds2 baths1,024 sq ft
6822 Countryside Ln #294, Niwot, CO 80503
OPEN SAT, 11AM TO 1PM
$1,295,000
3 beds2.5 baths2,687 sq ft
10394 Macedonia St, Longmont, CO 80503
$469,000
4 beds2 baths1,584 sq ft
1266 Lanyon Ln, Longmont, CO 80503
$589,900
4 beds3 baths2,882 sq ft
3103 Concord Way, Longmont, CO 80503
$1,275,000
4 beds3 baths2,310 sq ft
7314 Timothy Pl, Niwot, CO 80503
See all

Provided by Redfin

Sale history for 4021 Riley Dr

Date

Event

Price

IRES as Distributed by MLS Grid #924992

Nov 5, 2020

Sold

$635,000

$170/sq ft

Oct 14, 2020

Contingent

—

Oct 12, 2020

Relisted

—

Oct 3, 2020

Contingent

—

Sep 24, 2020

Listed

$635,000

$170/sq ft

+27

Public Remarks

REColorado as Distributed by MLS Grid #IR924992

Nov 5, 2020

Sold

$635,000

$170/sq ft

Sep 24, 2020

Listed

$635,000

$170/sq ft

IRES as Distributed by MLS Grid #697821

Mar 26, 2013

Sold

$410,000

$110/sq ft

Feb 18, 2013

Contingent

—

Jan 18, 2013

Listed

$420,000

$112/sq ft

REColorado as Distributed by MLS Grid #1145850

Jan 18, 2013

Price Changed

$420,000

$112/sq ft

Nov 28, 2012

Listed

$435,000

$116/sq ft

IRES as Distributed by MLS Grid #695464

Jan 18, 2013

Listing Removed

—

Nov 28, 2012

Listed

$435,000

$116/sq ft

Public Records

Apr 18, 2002

Sold

$4,564,000

$1,220/sq ft

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Year

Property tax

Land + Additions

Assessment*

2025

$5,759 (+9.4%)

$9,700 + $45,156

$54,856

2024

$5,262 (+1.4%)

$9,700 + $45,156

$54,856

2023

$5,191 (+18.7%)

$6,586 + $48,428

$55,014

2022

$4,373 (−1.3%)

$10,271 + $48,428

$58,699

2021

$4,430 (+7.1%)

$7,735 + $36,460

$44,195

2020

$4,135 (+1.6%)

$7,958 + $37,509

$45,467

2019

$4,069 (+17.2%)

$7,222 + $35,342

$42,564

2018

$3,471 (+1.4%)

$7,222 + $35,342

$42,564

2017

$3,424 (+3.2%)

$6,336 + $30,211

$36,547

2016

$3,318 (+4.9%)

$6,336 + $30,211

$36,547

2015

$3,162 (+13.5%)

$8,278 + $26,443

$34,721

2014

$2,787 (−0.4%)

$6,925 + $23,028

$29,953

2013

$2,798 (+5.6%)

$6,925 + $23,028

$29,953

2012

$2,650 (+6.8%)

$6,925 + $23,028

$29,953

2011

$2,482 (−4.9%)

$6,328 + $22,248

$28,576

2010

$2,611 (+1.8%)

$6,328 + $22,248

$28,576

2009

$2,564

$6,370 + $23,960

$30,330

Tax history for 4021 Riley Dr

Year

Property tax

Land + Additions

Assessment*

2025

$5,759 (+9.4%)

$9,700 + $45,156

$54,856

2024

$5,262 (+1.4%)

$9,700 + $45,156

$54,856

2023

$5,191 (+18.7%)

$6,586 + $48,428

$55,014

2022

$4,373 (−1.3%)

$10,271 + $48,428

$58,699

2021

$4,430 (+7.1%)

$7,735 + $36,460

$44,195

2020

$4,135 (+1.6%)

$7,958 + $37,509

$45,467

2019

$4,069 (+17.2%)

$7,222 + $35,342

$42,564

2018

$3,471 (+1.4%)

$7,222 + $35,342

$42,564

2017

$3,424 (+3.2%)

$6,336 + $30,211

$36,547

2016

$3,318 (+4.9%)

$6,336 + $30,211

$36,547

2015

$3,162 (+13.5%)

$8,278 + $26,443

$34,721

2014

$2,787 (−0.4%)

$6,925 + $23,028

$29,953

2013

$2,798 (+5.6%)

$6,925 + $23,028

$29,953

2012

$2,650 (+6.8%)

$6,925 + $23,028

$29,953

2011

$2,482 (−4.9%)

$6,328 + $22,248

$28,576

2010

$2,611 (+1.8%)

$6,328 + $22,248

$28,576

2009

$2,564

$6,370 + $23,960

$30,330

*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

6,370 Sq. Ft.

Year renovated

2005

Sq. Ft.

2,479

Year built

2003

Style

Single Family Residential

County

Boulder County

APN

R0149508

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Sep 2, 2026.

R-MN

Residential Mixed Neighborhood District

This district is intended to be conveniently located near collector and arterial streets, and in close proximity to activity centers and other public amenities and/or complementary uses and activities such as schools, parks, open space, and public transit. The R-MN district can also serve as a transition from single-family neighborhoods to multifamily residential, mixed-use, and nonresidential areas.

Permitted uses

Include but are not limited to:

Housing-Single unit
Housing-Multiple units
Housing-Student
Infrastructure
Public service
Communications tower
Park & open space

Property details

Parking

Parking/Garage Information
Parking Total: 3
Garage Spaces: 3
AttachedGarageYN: Yes

Interior

Bedroom Information
Bedrooms Total: 4
Upper Level Bedrooms: 3
Main Level Bedrooms: 1

Bathroom Information
Bathrooms Total Integer: 3
Bathrooms Full: 3
Upper Level Bathrooms: 2
Main Level Bathrooms: 1

Room 1 Information
Laundry
Level: Upper

Room 2 Information
Primary Bedroom
Level: Upper

Room 3 Information
Bedroom
Level: Main

Room 4 Information
Dining Room

Room 5 Information
Kitchen
Level: Main

Room 6 Information
Primary Bathroom (Full)
Level: Upper

Room 7 Information
Bedroom
Level: Upper

Room 8 Information
Bedroom
Level: Upper

Room 9 Information
Bathroom (Full)
Level: Main

Room 10 Information
Bathroom (Full)
Level: Upper

Room 11 Information
Family Room
Level: Main

Interior Features
Interior Features: Eat-in Kitchen,Five Piece Bath,Jack & Jill Bathroom,Kitchen Island,Open Floorplan,Pantry,Smart Thermostat,Vaulted Ceiling(s),Walk-In Closet(s)
Appliances: Bar Fridge, Disposal, Dryer, Microwave, Oven, Refrigerator, Self Cleaning Oven, Washer
Flooring: Tile, Wood
Window Features: Double Pane Windows, Window Coverings
Other Equipment: Satellite Dish

Basement Information
Has Basement
Basement: Unfinished

Fireplace Information
Fireplace Features: Gas, Gas Log, Living Room

Exterior

Building Information
Building Area Total: 3,740
Building Area Source: Other
Structure Type: House
Construction Materials: Stone, Wood Frame, Wood Siding

Exterior Features
Patio And Porch Features: Deck, Patio
Fencing: Fenced
Roof: Composition

Property Information
Property Type: Residential
Property Sub Type: Single Family Residence
Living Area: 2,704
Above Grade Finished Area: 2,704
Below Grade Unfinished Area: 1,036
Levels: Two
Direction Faces: North
Possible Use: Residential
Ownership: Individual
Security Features: Fire Alarm, Smoke Detector(s)

Lot Information
Lot Size Square Feet: 6,360
Lot Size Acres: 0.15
Lot Features: Level, Open Space, Sprinklers In Front
Water Source: Public
Road Surface Type: Paved
Road Frontage Type: Public
Zoning: SFR

Financial

Tax Information
Tax Annual Amount: $4,069
Tax Year: 2019
Parcel Number: R0149508

Utilities

Utility Information
Utilities: Cable Available, Electricity Available, Natural Gas Available
Sewer: Public Sewer

Heating & Cooling
Cooling: Ceiling Fan(s), Central Air
Heating: Forced Air

Location

HOA Information
Has Association
Association Name: Advance HOA Management
Association Fee: $122.50
Association Fee Frequency: Quarterly
Association Fee Annual: $490
Association Fee Total Annual: $490
Association Phone: 303-482-2213

School Information
Elementary School: Blue Mountain
Elementary School District: St. Vrain Valley RE-1J
Middle Or Junior School: Altona
Middle Or Junior School District: St. Vrain Valley RE-1J
High School: Silver Creek
High School District: St. Vrain Valley RE-1J

Public facts

Beds: 3
Baths: 3.0
Sq. Ft.: 2,479
Stories: —
Lot Size: 6,370 square feet
Style: Single Family Residential
Year Built: 2003
Year Renovated: 2005
County: Boulder County
APN: R0149508

Home facts updated by county records on Sep 2, 2026

Around this home

Schools

Blue Mountain Elementary School

Public PreK-5 • Assigned • 1.1mi

10/10

Altona Middle School

Public 6-8 • Assigned • 0.6mi

10/10

Silver Creek High School

Public 9-12 • Assigned • 1.1mi

9/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Local insights from Redfin agents

A vibrant northern Colorado community known for its scenic mountain views, extensive parks and trails, greenways, and a mix of established neighborhoods and newer housing options.
2 months ago • Longmont
Brent Sena
Redfin agent
126 deals
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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 92° expected this year, 18 days in 30 years

1/10 Wind Factor

Minimal risk of severe winds over next 30 years

4/10 Air Factor

4 unhealthy days expected this year, 5 days in 30 years

Provided by First Street

Historical weather

Longmont, CO • 80503

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

$829,000 – $1.00M

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New listings for sale in 80503

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Listing provided by REColorado as Distributed by MLS Grid

NEW 13 HRS AGO

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NEW 20 HRS AGOVIDEO TOUR

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Listing provided by REColorado as Distributed by MLS Grid

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Home values near 4021 Riley Dr

Data from public records.

Address	Redfin Estimate
4102 Riley Dr, Longmont, CO 3 Beds \| 3 Baths \| 2368 Sq. Ft.	$533,924
4108 Riley Dr, Longmont, CO 4 Beds \| 3.5 Baths \| 2092 Sq. Ft.	$527,594

Address	Redfin Estimate
4116 Riley Dr, Longmont, CO 2 Beds \| 2.5 Baths \| 1318 Sq. Ft.	—
4114 Riley Dr, Longmont, CO 2 Beds \| 3 Baths \| 1557 Sq. Ft.	$504,405

Address	Redfin Estimate
4118 Riley Dr, Longmont, CO 3 Beds \| 2.5 Baths \| 2064 Sq. Ft.	$540,431
4112 Riley Dr, Longmont, CO 3 Beds \| 3 Baths \| 2064 Sq. Ft.	$531,627

Property information provided by REColorado as Distributed by MLS Grid when last listed in 2020. 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 80503, CO

Sale history for 4021 Riley Dr

Tax history for 4021 Riley Dr

Public record

Property details

Around this home

Schools

Lifestyle

Local insights from Redfin agents

Climate risks

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 80503

Home values near 4021 Riley Dr

More real estate resources