Google street view image for 4120 Riley Dr, Longmont, CO 80503

Off market

$519,705

•

2.5 ba

•

1,712

sq ft

4120 Riley Dr, Longmont, CO 80503

About this home

4120 Riley Dr is a 1,712 square foot townhouse on a 1,109 square foot lot with 3 bedrooms and 2.5 bathrooms. Based on Redfin's Longmont data, we estimate the home's value is $519,705.

TownhomeProperty Type

2005Year Built

1,109 sq ftLot Size

$304Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$519,705

$5,000 since September

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 12.4% lower than the average sale price ($593K) of 6 comparable homes.

SOLD AUG 31, 2026
$425,000
A
2 beds2.5 baths1,260 sq ft
4204 Riley Dr, Longmont, CO 80503
SOLD AUG 20, 2026
$690,000
B
3 beds2.5 baths2,571 sq ft
4227 San Marco Dr, Longmont, CO 80503
SOLD JUN 26, 2026
$695,000
C
3 beds3 baths2,984 sq ft
4510 Portofino Dr, Longmont, CO 80503
Listing provided by metrolistCO
SOLD FEB 24, 2026
$440,000
D
2 beds2.5 baths1,260 sq ft
4240 Riley Dr, Longmont, CO 80503
SOLD OCT 20, 2026
$654,900
E
3 beds2 baths2,483 sq ft
1710 Tuscany Ct, Longmont, CO 80503
SOLD FEB 27, 2026
$655,000
F
3 beds2.5 baths1,782 sq ft
4207 San Marco Dr, Longmont, CO 80503

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Earn from this home

Sell

$487,789

Est. take-home

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Rent

$2,608/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 8 HRS AGO
$825,000
3 beds2.5 baths3,389 sq ft
5107 Linda Pl, Longmont, CO 80503
NEW 15 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 4120 Riley Dr

As the MLS and public records start to fill up, we'll list the details here.

Year

Property tax

Land + Additions

Assessment*

2025

$3,024 (−4.2%)

$3,956 + $31,100

$35,056

2024

$3,158 (+1.4%)

$3,956 + $31,100

$35,056

2023

$3,115 (+7.0%)

$516 + $32,495

$33,011

2022

$2,911 (−1.3%)

$4,201 + $32,495

$36,696

2021

$2,949 (+6.0%)

$3,183 + $26,236

$29,419

2020

$2,783 (+1.6%)

$3,275 + $26,991

$30,266

2019

$2,739 (+22.0%)

$3,003 + $25,647

$28,650

2018

$2,245 (+1.4%)

$3,003 + $25,647

$28,650

2017

$2,215 (+2.1%)

$2,664 + $20,974

$23,638

2016

$2,169 (+4.9%)

$2,664 + $20,974

$23,638

2015

$2,067 (+15.7%)

$4,537 + $18,157

$22,694

2014

$1,786 (−0.4%)

$4,378 + $14,822

$19,200

2013

$1,793 (+3.8%)

$4,378 + $14,822

$19,200

2012

$1,728 (+6.8%)

$4,378 + $14,822

$19,200

2011

$1,618 (−5.2%)

$2,030 + $16,597

$18,627

2010

$1,706 (+1.8%)

$2,030 + $16,597

$18,627

2009

$1,676

$3,740 + $16,080

$19,820

Tax history for 4120 Riley Dr

Year

Property tax

Land + Additions

Assessment*

2025

$3,024 (−4.2%)

$3,956 + $31,100

$35,056

2024

$3,158 (+1.4%)

$3,956 + $31,100

$35,056

2023

$3,115 (+7.0%)

$516 + $32,495

$33,011

2022

$2,911 (−1.3%)

$4,201 + $32,495

$36,696

2021

$2,949 (+6.0%)

$3,183 + $26,236

$29,419

2020

$2,783 (+1.6%)

$3,275 + $26,991

$30,266

2019

$2,739 (+22.0%)

$3,003 + $25,647

$28,650

2018

$2,245 (+1.4%)

$3,003 + $25,647

$28,650

2017

$2,215 (+2.1%)

$2,664 + $20,974

$23,638

2016

$2,169 (+4.9%)

$2,664 + $20,974

$23,638

2015

$2,067 (+15.7%)

$4,537 + $18,157

$22,694

2014

$1,786 (−0.4%)

$4,378 + $14,822

$19,200

2013

$1,793 (+3.8%)

$4,378 + $14,822

$19,200

2012

$1,728 (+6.8%)

$4,378 + $14,822

$19,200

2011

$1,618 (−5.2%)

$2,030 + $16,597

$18,627

2010

$1,706 (+1.8%)

$2,030 + $16,597

$18,627

2009

$1,676

$3,740 + $16,080

$19,820

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

Zoning

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

Interior

Basement Information
Basement Sq. Ft: 380
Basement Type: Unfinished

Bathroom Information
# of Full Baths: 2
# of 1/2 Baths: 1

Heating & Cooling
Heating Type: Forced Air

Room Information
# of Rooms: 6

Exterior

Exterior Information
Physical Condition: Good
Building Style Type: Townhouse
Construction Type: Frame
Building Construction Quality: Good
Roof Covering Type: Asphalt
Roof Shape Type: Asphalt
Building Type: Single Family

Property Information
Subdivision Name: RESERVE AT RENAISSANCE
Living Sq. Ft: 1,712
Ground Floor Sq. Ft: 854
Building Sq. Ft: 2,492
Stories Type: Multi-Level
Legal Description: LOT 19 RESERVE AT RENAISSANCE REPLAT A

Parking & Garage Information
Parking Type: Attached Garage
Garage/Parking Sq. Ft: 400
Garage / Carport Type: Attached

Lot Information
# of Buildings: 1
Land Sq. Ft: 1,109
Legal Lot Number: 19
Municipality Name: LONGMONT
Acres: 0.0255
County Use Description: 1 FAMILY RESID

Financial

Assessor Information
Assessment Year: 2025
Tax Area: RE1J-LGT-NCWD-SVLHD

Public facts

Beds: 3
Baths: 2.5
Sq. Ft.: 1,712
Stories: —
Lot Size: 1,109 square feet
Style: Townhouse
Year Built: 2005
Year Renovated: 2005
County: Boulder County
APN: R0507083

Home facts updated by county records on Sep 2, 2026

Around this home

Schools

Blue Mountain Elementary School

Public PreK-5 • Assigned • 1.0mi

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

$494,000 – $598,000

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New listings for sale in 80503

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Listing provided by REColorado as Distributed by MLS Grid

NEW 8 HRS AGO

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NEW 15 HRS AGOVIDEO TOUR

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Listing provided by REColorado as Distributed by MLS Grid

OPEN SAT, 12:30PM TO 2:30PM3D WALKTHROUGH

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OPEN SUN, 1PM TO 3PM

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OPEN SAT, 11AM TO 1PM3D & VIDEO TOUR

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Home values near 4120 Riley Dr

Data from public records.

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

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

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

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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 4120 Riley Dr

Tax history for 4120 Riley Dr

Zoning

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 4120 Riley Dr

More real estate resources