Google street view image for 620 Keystone St, Waterloo, IA 50703

OFF MARKET

$100,594

•

1 ba

•

812

sq ft

620 Keystone St, Waterloo, IA 50703

About this home

620 Keystone St is a 812 square foot house on a 7,200 square foot lot with 3 bedrooms and 1 bathroom. Based on Redfin's Waterloo data, we estimate the home's value is $100,594.

Single-familyProperty Type

1955Year Built

7,200 sq ftLot Size

$124Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$100,594

$2,000 since August

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 6.8% higher than the average sale price ($94K) of 6 comparable homes.

SOLD APR 20, 2026
$90,100
A
3 beds1 bath932 sq ft
211 Boston Ave Ave, Waterloo, IA 50703
SOLD JUL 20, 2026
$70,000
B
3 beds1 bath908 sq ft
303 E Arlington St, Waterloo, IA 50703
SOLD MAR 17, 2026
$134,900
C
3 beds1 bath1,036 sq ft
427 Hope Ave, Waterloo, IA 50703
SOLD SEP 26, 2025
$90,000
D
3 beds1 bath864 sq ft
543 Mildred Ave, Waterloo, IA 50703
SOLD MAY 15, 2026
$125,000
E
3 beds1 bath1,006 sq ft
233 Oliver St, Waterloo, IA 50703
SOLD MAR 9, 2026
$55,000
F
3 beds1 bath964 sq ft
319 Oliver St St, Waterloo, IA 50703

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Earn from this home

Rent

$725/mo

Redfin rental estimate

List your home for rent

Market trends in 50703, IA

Last updated August 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-List Price

97.7%

+0.1% MoM

Median sale price

$97,790

$4K MoM

Avg. days on market

34d

3 days MoM

Recently sold homes

1 MoM

New listings for sale

$299,000
4 beds1 bath2,152 sq ft
441 E Airline Hwy, Waterloo, IA 50703
$149,999
4 beds1.5 baths1,640 sq ft
510 Courtland St, Waterloo, IA 50703
$125,000
4 beds0.5 baths2,918 sq ft
253 Prospect Ave, Waterloo, IA 50703
$329,900
3 beds1 bath1,914 sq ft
8124 Logan Ave, Waterloo, IA 50703
See all

Provided by Redfin

Sale history for 620 Keystone St

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

Year

Property tax

Land + Additions

Assessment*

2025

$1,508 (+8.5%)

$9,980 + $79,410

$89,390

2024

$1,390 (+14.9%)

$9,980 + $79,410

$89,390

2023

$1,210 (+2.7%)

$9,980 + $59,550

$69,530

2022

$1,178 (−5.6%)

$9,980 + $59,550

$69,530

2021

$1,248 (+1.6%)

$9,980 + $45,150

$55,130

2020

$1,228 (+6.4%)

$9,980 + $45,150

$55,130

2019

$1,154 (+0.7%)

$9,980 + $45,150

$55,130

2018

$1,146 (−2.9%)

$9,980 + $45,150

$55,130

2017

$1,180 (+1.2%)

$9,980 + $41,390

$51,370

2016

$1,166 (+0.7%)

$9,980 + $41,390

$51,370

2014

$1,158

$9,980 + $41,390

$51,370

Tax history for 620 Keystone St

Year

Property tax

Land + Additions

Assessment*

2025

$1,508 (+8.5%)

$9,980 + $79,410

$89,390

2024

$1,390 (+14.9%)

$9,980 + $79,410

$89,390

2023

$1,210 (+2.7%)

$9,980 + $59,550

$69,530

2022

$1,178 (−5.6%)

$9,980 + $59,550

$69,530

2021

$1,248 (+1.6%)

$9,980 + $45,150

$55,130

2020

$1,228 (+6.4%)

$9,980 + $45,150

$55,130

2019

$1,154 (+0.7%)

$9,980 + $45,150

$55,130

2018

$1,146 (−2.9%)

$9,980 + $45,150

$55,130

2017

$1,180 (+1.2%)

$9,980 + $41,390

$51,370

2016

$1,166 (+0.7%)

$9,980 + $41,390

$51,370

2014

$1,158

$9,980 + $41,390

$51,370

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

Zoning

R-2

One and Two Family Residence District

The R-2 District is intended to provide for areas of the community which are suitable for low density residential uses that are adjacent to residential, professional office or neighborhood commercial uses. Any outside storage of materials or equipment shall be limited and clearly incidental and accessory to the Principal Permitted Use, and shall not include the outside storage of junk or salvage material or similar debris. Outside storage of materials or equipment shall not be permitted in a front yard. This provision shall not restrict the outside storage of licensed and operable vehicles that are accessory and clearly incidental to the Principal Permitted Use.

Permitted uses

Include but are not limited to:

Community / recreation center
Housing-Single unit
Housing-Multiple units
Infrastructure
Public service
Educational/school
Recreation
Golf related
Cemetery
Park & open space

Property details

Interior

Basement Information
Basement Sq. Ft: 812
Basement Type: Full

Bathroom Information
# of Full Baths: 1
# of Bathroom Fixtures: 3

Room Information
# of Rooms: 5

Exterior

Exterior Information
Foundation Type: Concrete Block
Exterior Wall: Vinyl
Roof Covering Type: Asphalt
Roof Shape Type: Gable
Building Type: Single Family

Property Information
Subdivision Name: HOLLINGSWORTH ADD
Living Sq. Ft: 812
Building Sq. Ft: 1,624
Legal Description: HOLLINGSWORTH ADDITION LOT 15

Parking & Garage Information
Parking Type: Detached Frame Garage
Garage/Parking Sq. Ft: 396
Garage / Carport Type: Detached Frame

Lot Information
# of Buildings: 1
Land Sq. Ft: 7,200
Legal Lot Number: 15
Municipality Name: WATERLOO
Acres: 0.1653
Depth Footage: 120
Front Footage: 60
County Use Description: SINGLE-FAMILY / OWNER OCCUPIED

Financial

Assessor Information
Assessment Year: 2025

Public facts

Beds: 3
Baths: 1.0
Sq. Ft.: 812
Stories: —
Lot Size: 7,200 square feet
Style: Single Family Residential
Year Built: 1955
Year Renovated: —
County: Black Hawk County
APN: 891312380008

Home facts updated by county records on Aug 12, 2026

Around this home

Schools

Cunningham School

Public PreK-5 • Assigned • 1.4mi

2/10

George Washington Carver Academy

Public 6-8 • Assigned • 0.7mi

2/10

East High School

Public 9-12 • Assigned • 1.8mi

2/10

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

1/10 Fire Factor

Unlikely to be in a wildfire in next 30 years

3/10 Heat Factor

7 days above 101° expected this year, 16 days in 30 years

2/10 Wind Factor

Minor risk of severe winds over next 30 years

1/10 Air Factor

0 unhealthy days expected this year, 0 days in 30 years

Provided by First Street

Historical weather

Waterloo, IA • 50703

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 hours in June and 3.9 hours in December, which is comparable to the U.S. average for solar exposure.

10 hrs

3.9 hrs

JuneDecember

Provided by Shadowmap

Estimated sale price

$96,000 – $116,000

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New listings for sale in 50703

$299,000

4 beds1 bath2,152 sq ft

441 E Airline Hwy, Waterloo, IA 50703

$149,999

4 beds1.5 baths1,640 sq ft

510 Courtland St, Waterloo, IA 50703

$125,000

4 beds0.5 baths2,918 sq ft

253 Prospect Ave, Waterloo, IA 50703

$329,900

3 beds1 bath1,914 sq ft

8124 Logan Ave, Waterloo, IA 50703

Home values near 620 Keystone St

Data from public records.

Address	Redfin Estimate
622 Keystone Street, Waterloo, IA 3 Beds \| 1 Baths \| 812 Sq. Ft.	$70,378
610 Keystone Street, Waterloo, IA 3 Beds \| 1.5 Baths \| 1332 Sq. Ft.	$108,915

Address	Redfin Estimate
624 Keystone Street, Waterloo, IA 3 Beds \| 2.5 Baths \| 1428 Sq. Ft.	$131,315
614 Keystone Street, Waterloo, IA 3 Beds \| 1 Baths \| 812 Sq. Ft.	$100,482

Address	Redfin Estimate
626 Keystone Street, Waterloo, IA 3 Beds \| 1 Baths \| 920 Sq. Ft.	$122,273
616 Keystone Street, Waterloo, IA 3 Beds \| 1 Baths \| 1242 Sq. Ft.	$108,544

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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 50703, IA

Sale history for 620 Keystone St

Tax history for 620 Keystone St

Zoning

Property details

Around this home

Schools

Lifestyle

Climate risks

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 50703

Home values near 620 Keystone St

More real estate resources