1237 S 20th St is a 1,456 square foot townhouse on a 4,200 square foot lot with 5 bedrooms and 1 bathroom. - it last sold on February 01, 1990 for $5,166,666. Based on Redfin's Milwaukee data, we estimate the home's value is $156,326.
TownhomeProperty Type
1893Year Built
4,200 sq ftLot Size
$107Est. Price/Sq.Ft.
1 garage spacesParking
Source:Public Records
Redfin Estimate
$156,326
$5.0M since sold in February 1990$6,000 since September
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 14.5% higher than the average sale price ($137K) of 6 comparable homes.
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Zoning and permits
Zoning
Permits
RT4
Two-Family Residential District
The purpose of the RT4 district is to promote, preserve and protect neighborhoods intended primarily for 2-family dwellings while also permitting a mixture of single-family dwellings and small multi-family dwellings of 3 or 4 units. This district, much like the RT3 district, allows smaller lots, smaller setbacks and a higher lot coverage than the RT1 and RT2 districts. The neighborhoods found in this district were platted and developed, in large part, in the late 1800s and early 1900s. This district also allows traditional corner commercial establishments commonly found in urban neighborhoods.
Permitted uses
Include but are not limited to:
Greenhouse / nursery
Assembly/ meeting place
Housing-Single unit
Housing-Multiple units
Housing-Other
Educational/school
Fire house
Library
Police station
Park & open space
Jan 15, 2020 • Final
Electrical
Work on electrical systems.
Electrical
Jan 10, 2013 • Final
Hvac general
Work on heating and air conditioning.
HVAC
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
Interior
Basement Information
Basement Sq. Ft: 1,067
Basement Type: Full
Bathroom Information
# of Full Baths: 1
Heating & Cooling
Heating Type: Hot Water
Room Information
# of Rooms: 8
Exterior
Exterior Information
Exterior Wall: Frame
Building Type: Townhouse
Property Information
Subdivision Name: CLARKS ADD
Living Sq. Ft: 1,456
Ground Floor Sq. Ft: 1,078
Building Sq. Ft: 2,523
# of Units: 1
# of Stories: 1
Legal Description: SUBD OF BLK 41 IN CLARK'S ADDN IN SW 1/4 SEC 31-7-22 BLOCK 41 LOT 10
Lot Information
# of Buildings: 1
Land Sq. Ft: 4,200
Legal Lot Number: 10
Legal Block Number: 41
Fire District: TIF DIST #3
Municipality Name: CITY OF MILWAUKEE
Acres: 0.0964
Zoning Code: RT4
County Use Description: SINGLE PRIVATE HOUSEHOLDS
Financial
Assessor Information
Assessment Year: 2025
Tax Area: MILWAUKEE COUNTY
Public facts
Beds: 5
Baths: 1.0
Sq. Ft.: 1,456
Stories: 1.0
Lot Size: 4,200 square feet
Style: Townhouse
Year Built: 1893
Year Renovated: —
County: Milwaukee County
APN: 4342011000
Home facts updated by county records on Jul 20, 2026
Around this home
Schools
Longfellow School
Public PreK-8 • Assigned • 0.2mi
4/10
South Division High School
Public 9-12 • Assigned • 0.5mi
3/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Climate risks
6/10 Flood Factor
Estimated 67-74% chance 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
2/10 Heat Factor
7 days above 97° expected this year, 13 days in 30 years
2/10 Wind Factor
Minor risk of severe winds over next 30 years
3/10 Air Factor
3 unhealthy days expected this year, 3 days in 30 years
Provided by First Street
Historical weather
Milwaukee, WI • 53204
Average low and high temperatures (°F)
28
14
35
20
49
31
57
39
63
46
77
60
83
67
78
63
73
57
65
49
49
37
34
22
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
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Nov
Dec
Sun exposure
In this area, properties receive around 10 hours in
June and 3.3 hours in December, placing it below the
U.S. average for solar exposure.
10 hrs
3.3 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$149,000 – $180,000
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