OFF MARKET

Off Market Jan 2008 for $185K

$475,951

Est. refi paymentEst. refi $1,216/mo

•

1,032

sq ft

421 Riddle Dr, Fort Collins, CO 80521

About this home

Single-familyProperty Type

1960Year Built

6,860 sq ftLot Size

$461Est. Price/Sq.Ft.

1 car garageParking

Listed by Pamela A Fancy • Keller Williams-No. Colo, FTC

Contact: 9703773700

Bought with Pamela A Fancy • Keller Williams-No. Colo, FTC

•970-377-3700 (broker)

•FrontDesk119@kw.com (broker)

Redfin checked: 2 minutes ago

•Source:IRES as Distributed by MLS Grid #553616

Redfin Estimate

$475,951

$291K since sold in January 2008$1,000 since July

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 3.5% higher than the average sale price ($460K) of 6 comparable homes.

SOLD MAY 14, 2026
$515,000
A
3 beds2 baths1,064 sq ft
409 Franklin St, Fort Collins, CO 80521
SOLD JUL 31, 2026
$489,000
B
3 beds1 bath960 sq ft
1600 Crestmore Pl, Fort Collins, CO 80521
SOLD OCT 21, 2025
$450,000
C
3 beds1 bath1,210 sq ft
1112 Beech St, Fort Collins, CO 80521
SOLD DEC 12, 2025
$500,000
D
3 beds2 baths1,080 sq ft
405 Franklin St, Fort Collins, CO 80521
SOLD AUG 7, 2026
$416,000
E
2 beds1 bath720 sq ft
408 West St, Fort Collins, CO 80521
SOLD JUN 5, 2026
$389,000
F
3 beds1 bath899 sq ft
509 Skyline Dr, Fort Collins, CO 80521

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Earn from this home

Sell

$369,547

Est. take-home

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Refinance

Est. cash available

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Rent

$2,099/mo

Redfin rental estimate

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Market trends in 80521, CO

Last updated July 2026

Buyer's Market

Seller's Market

Balanced market

Sale-to-List Price

98.7%

+0.5% MoM

Median sale price

$535K

$22K MoM

Avg. days on market

51d

1 days MoM

Recently sold homes

8 MoM

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Kimberly Henry • Kimberly Henry
COMING SOON
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OPEN SAT, 11AM TO 2PM
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See all

Provided by Redfin

Sale history for 421 Riddle Dr

Year

Property tax

Land + Additions

Assessment*

2025

$2,900 (+2.1%)

$2,375 + $26,731

$29,106

2024

$2,840 (+5.1%)

$2,375 + $26,731

$29,106

2023

$2,702 (+27.5%)

$2,546 + $30,733

$33,279

2022

$2,120 (−1.0%)

$2,546 + $30,733

$33,279

2021

$2,142 (−1.4%)

$2,641 + $19,808

$22,449

2020

$2,172 (−0.4%)

$2,717 + $20,378

$23,095

2019

$2,182 (+20.8%)

$2,717 + $20,499

$23,216

2018

$1,807 (+0.3%)

$2,717 + $20,499

$23,216

2017

$1,800 (+17.4%)

$2,736 + $17,086

$19,822

2016

$1,534 (+23.4%)

$2,736 + $17,086

$19,822

2014

$1,243 (−0.1%)

$3,020 + $10,610

$13,630

2013

$1,245 (+4.0%)

$3,020 + $10,610

$13,630

2012

$1,196 (+2.8%)

$3,020 + $9,800

$12,820

2011

$1,164 (−3.7%)

$3,020 + $9,800

$12,820

2010

$1,208 (+3.6%)

$3,020 + $9,800

$12,820

2009

$1,166

$3,340 + $10,140

$13,480

Tax history for 421 Riddle Dr

Year

Property tax

Land + Additions

Assessment*

2025

$2,900 (+2.1%)

$2,375 + $26,731

$29,106

2024

$2,840 (+5.1%)

$2,375 + $26,731

$29,106

2023

$2,702 (+27.5%)

$2,546 + $30,733

$33,279

2022

$2,120 (−1.0%)

$2,546 + $30,733

$33,279

2021

$2,142 (−1.4%)

$2,641 + $19,808

$22,449

2020

$2,172 (−0.4%)

$2,717 + $20,378

$23,095

2019

$2,182 (+20.8%)

$2,717 + $20,499

$23,216

2018

$1,807 (+0.3%)

$2,717 + $20,499

$23,216

2017

$1,800 (+17.4%)

$2,736 + $17,086

$19,822

2016

$1,534 (+23.4%)

$2,736 + $17,086

$19,822

2014

$1,243 (−0.1%)

$3,020 + $10,610

$13,630

2013

$1,245 (+4.0%)

$3,020 + $10,610

$13,630

2012

$1,196 (+2.8%)

$3,020 + $9,800

$12,820

2011

$1,164 (−3.7%)

$3,020 + $9,800

$12,820

2010

$1,208 (+3.6%)

$3,020 + $9,800

$12,820

2009

$1,166

$3,340 + $10,140

$13,480

*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

6,860 Sq. Ft.

Year renovated

1960

Sq. Ft.

1,032

Year built

1960

Style

Single Family Residential

County

Larimer County

APN

R0014087

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Jul 30, 2026.

Oct 14, 2022 • Final

Residential mechanical

Install a new mini-split air conditioning system for the first time.

HVAC

Apr 16, 2019 • Final

Residential general alteration

Install a roof-mounted grid-tied solar photovoltaic system. Upgrade the electrical service and perform necessary rafter reinforcements.

Remodel

Permit history is from public records and may be incomplete or inaccurate. Redfin and its agents make no representations about the property condition or permit status. Buyers should independently verify all information.

Property details

Parking

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

Interior

Bathroom Information
Bathrooms (Full): 1
Bathrooms (Half): 0
Bathrooms (Three Quarter): 0

Bedroom Information
Bedrooms Total: 3

Heating & Cooling
Cooling: Yes
Ceiling Fan(s), Attic Fan
Heating: Yes
Forced Air, Wood Stove

Interior Features
Electric Range/Oven, Dishwasher, Refrigerator, Washer, Dryer
High Speed Internet, Eat-in Kitchen

Room Information
Basement: Crawl Space

Exterior

Exterior Features
Lighting, Hot Tub Included
Fencing: Partial
Patio and Porch Features: Patio
Roof: Composition

Land Information
Road Surface Type: Paved, Asphalt

Lot Information
Horse(s): No
Lot Features: Gutters, Sidewalks, Fire Hydrant within 500 Feet, Level
Road Frontage Type: City Street
Zoning: res

Property Information
Property Type: Residential
Waterfront: No

Subdivision Information
Subdivision Name: Hanna
MLS Area Major: Fort Collins

Building Information
Above Grade Finished Area: 1032
Building Area Total: 1032
Construction Materials: Wood/Frame

Financial

Tax Information
Parcel Number: R0014087
Tax Annual Amount: 1031
Tax Year: 2007

Financial Information
Listing Terms: Cash, Conventional

Utilities

Utility Information
Utilities: Natural Gas Available, Electricity Available, Cable Available
Electric: Electric,City
Gas: Natural Gas,x-cel
Sewer: City Sewer

Location

HOA Information
Association: No
Association Fee: 0

School Information
High School District: Poudre
Elementary School: Putnam
Middle or Junior School: Lincoln
High School: Poudre

Location Information
Directions: From Sheilds and LaPorte Ave., go North on Sheilds. Left (West) on Elm. Left (South) on Riddle, house on right side.
Unparsed Address: 421 Riddle Dr Fort Collins CO 80521
Street Number: 421
Street Name: Riddle
Street Suffix: Dr
City: Fort Collins
State or Province: CO
County or Parish: Larimer
Country: US
Postal Code: 80521
Coordinates: -105.098188,40.593148
Latitude: 40.593148
Longitude: -105.098188

Public facts

Beds: 3
Baths: 1.0
Sq. Ft.: 1,032
Stories: 1.0
Lot Size: 6,860 square feet
Style: Single Family Residential
Year Built: 1960
Year Renovated: 1960
County: Larimer County
APN: R0014087

Home facts updated by county records on Jul 30, 2026

Other

Listing Information
Attribution Contact: 9703773700
Close Price: $185,000
Photos Count: 9
Possible Use: Single Family
Special Listing Conditions: Private Owner
Standard Status: Closed

Listing Date Information
Close Date: Monday, January 28, 2008
Cumulative Days on Market: 53
Days on Market: 53
Listing Contract Date: Friday, December 7, 2007
Modification Timestamp: Thursday, July 25, 2024 6:33 AM

Home Information
Window Features: Window Coverings
Year Built: 1960

Around this home

Schools

Putnam Elementary School

Public PreK-5 • Assigned • 0.3mi

7/10

Lincoln Middle School

Public 6-8 • Assigned • 0.5mi

5/10

Poudre High School

Public 9-12 • Assigned • 1.3mi

5/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Local insights from Redfin agents

There's a reason Fort Collins consistently ranks among the happiest, best-loved cities in the country. It's a college town with a grown-up backbone — historic Old Town, a thriving local scene, and a culture built around craft beer, biking, and...
2 months ago • Fort Collins
Chuck Klijewski
Redfin agent
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Climate risks

1/10 Flood Factor

Minimal risk of a flood reaching the building in the next 30 years

3/10 Fire Factor

0.31% chance of being in a wildfire in next 30 years

3/10 Heat Factor

7 days above 91° expected this year, 18 days in 30 years

1/10 Wind Factor

Minimal risk of severe winds over next 30 years

6/10 Air Factor

13 unhealthy days expected this year, 13 days in 30 years

Provided by First Street

Historical weather

Fort Collins, CO • 80521

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 10.4 hours in June and 5.8 hours in December, placing it above the U.S. average for solar exposure.

10.4 hrs

5.8 hrs

JuneDecember

Provided by Shadowmap

Estimated sale price

$453,000 – $548,000

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Home values near 421 Riddle Dr

Data from public records.

Address	Redfin Estimate
417 Riddle Dr, Fort Collins, CO 3 Beds \| 1 Baths \| 1032 Sq. Ft.	$495,205
413 Riddle Dr, Fort Collins, CO 3 Beds \| 1 Baths \| 1032 Sq. Ft.	$508,202

Address	Redfin Estimate
423 Riddle Dr, Fort Collins, CO 3 Beds \| 1 Baths \| 1404 Sq. Ft.	$472,002
415 Riddle Dr, Fort Collins, CO 3 Beds \| 1 Baths \| 1956 Sq. Ft.	$426,598

Address	Redfin Estimate
422 Riddle Dr, Fort Collins, CO 3 Beds \| 1 Baths \| 1297 Sq. Ft.	$526,784
412 Riddle Dr, Fort Collins, CO 2 Beds \| 1 Baths \| 888 Sq. Ft.	$417,797

Property information provided by IRES as Distributed by MLS Grid when last listed in 2007. This data may not match . Learn more.

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About this home

Redfin Estimate

Earn from this home

Market trends in 80521, CO

Sale history for 421 Riddle Dr

Tax history for 421 Riddle 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 80521

Home values near 421 Riddle Dr

More real estate resources