For sale

$175,000

304 21st St SE, Mason City, IA 50401

3beds

3baths

1,903sqft

$1,293/mo

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Single Family Residence

Built in 1917

7,384 Square Feet Lot

$170,200 Zestimate^®

$92/sqft

$-- HOA

What's special

Three-season roomNew flooring throughoutCovered front porch

Welcome home to this charming 3-bedroom, 2.5-bath with new flooring throughout, and the updated bathroom adds a modern style Relax with your morning coffee on the covered front porch or enjoy the night entertaining in your three-season room. Conveniently located on a corner lot with great curb appeal, this home combines comfort, functionality, and recent updates, making it move-in ready for its next owners. Call your favorite Realtor for a showing today!

16 days

853

53

Facts & features

Interior

Bedrooms & bathrooms

Bedrooms: 3
Bathrooms: 3
Main level bathrooms: 1

Bedroom 1

Level: Upper
Area: 230
Dimensions: 10 x 23

Bedroom 2

Level: Upper
Area: 120
Dimensions: 10 x 12

Bedroom 3

Level: Upper
Area: 110
Dimensions: 10 x 11

Bathroom 1

Features: Separate Shower, Shower, Tub

Dining room

Features: Formal Dining
Level: Main
Area: 154
Dimensions: 11 x 14

Family room

Level: Main
Area: 300
Dimensions: 15 x 20

Kitchen

Level: Main
Area: 144
Dimensions: 12 x 12

Living room

Level: Main
Area: 299
Dimensions: 13 x 23

Heating

Forced Air, Natural Gas

Cooling

Central Air

Appliances

Included: Dishwasher, Refrigerator, Washer/Dryer

Features

Ceiling Fan(s)
Flooring: Vinyl, Carpet
Basement: Full
Number of fireplaces: 1
Fireplace features: One

Interior area

Total structure area: 2,227
Total interior livable area: 1,903 sqft

Property

Parking

Total spaces: 2
Parking features: Detached, Concrete
Garage spaces: 2

Features

Levels: Two
Patio & porch: Deck
Exterior features: Sidewalks, Storage

Lot

Size: 7,384 Square Feet
Dimensions: 52 x 142
Features: Corner Lot

Details

Additional structures: Storage
Parcel number: 071532701300
Zoning description: RG/GENERAL RES

Construction

Type & style

Home type: SingleFamily
Property subtype: Single Family Residence

Materials

Frame
Foundation: Block, Stone
Roof: Asphalt

Condition

Year built: 1917

Utilities & green energy

Sewer: CITY
Water: Public

Community & HOA

Community

Security: Smoke Detector(s)
Subdivision: IA

Location

Region: Mason City

Financial & listing details

Price per square foot: $92/sqft
Tax assessed value: $175,770
Annual tax amount: $2,300
Date on market: 7/16/2026

Estimated market value

$170,200

$162,000 - $179,000

$2,069/mo

Price history

Date	Event	Price
7/16/2026	Listed for sale	$175,000+38.3%$92/sqft
Source: Greater Mason BOR #260513 Report a problem
7/24/2020	Sold	$126,500-1.6%$66/sqft
Source: Public Record Report a problem
5/20/2020	Listed for sale	$128,500+15.8%$68/sqft
Source: RE/MAX Heartland Realtors #200340 Report a problem
5/21/2010	Sold	$111,000$58/sqft
Source: Agent Provided Report a problem

Public tax history

Year	Property taxes	Tax assessment
2024	$2,234 -13.3%	$143,600
2023	$2,576 -1.7%	$143,600 +10.4%
2022	$2,620 +17.6%	$130,130 +2.2%
2021	$2,227 +8.8%	$127,290 +23.9%
2020	$2,046	$102,720
2019	$2,046	$102,720 +4.1%
2018	--	$98,710
2017	$1,788 +0.1%	--
2016	$1,786	--
2015	$1,786 +10%	--
2014	$1,624 +4.2%	--
2013	$1,558 +7%	--
2012	$1,456 -2%	--
2011	$1,486 +18.3%	--
2010	$1,256 +11.3%	--
2009	$1,128 +3.3%	--
2008	$1,092 +4.4%	--
2007	$1,046	--

Find assessor info on the county website

Monthly payment

Est. payment

Payment breakdown

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Principal & interest
$1,547
Mortgage insurance
$0
Property taxes
$170
Home insurance
$105
HOA fees
$0
Utilities
Not included

All calculations are estimates and provided by Zillow, Inc. for informational purposes only. Actual amounts may vary.

HOA fees may include property taxes on listings classified as Co-Ops. Contact the listing agent and/or owner for fee details.

Mortgage interest rates are dependent on a number of factors, including credit score, down payment, and repayment length. Interest rate data provided by Zillow Group Marketplace, Inc. as of 1/1/1970 from various mortgage lenders with which we have lead or other similar arrangements; the Estimated Payment is an average of those rates.

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Climate risks

Neighborhood: 50401

Getting around

34 / 100

Car-Dependent

19 / 100

Minimal Transit

44 / 100

Somewhat Bikeable

Nearby schools

GreatSchools rating

5/10
Lincoln Intermediate School
Grades: 5-6Distance: 0.3 mi
4/10
John Adams Middle School
Grades: 7-8Distance: 1.9 mi
5/10
Mason City High School
Grades: 9-12Distance: 2 mi

Schools provided by the listing agent

District: Mason City

Source: Greater Mason BOR. This data may not be complete. We recommend contacting the local school district to confirm school assignments for this home.