4020 S Sunny Slope Rd is a 1,272 square foot house on a 1.38 acre lot with 2 bedrooms and 1 bathroom. - it last sold on August 14, 2014 for $172,000. Based on Redfin's New Berlin data, we estimate the home's value is $424,762.
Single-familyProperty Type
1951Year Built
1.38 acresLot Size
$334Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$424,762
$253K since sold in August 2014$2,000 since August
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 1.7% higher than the average sale price ($418K) of 6 comparable homes.
Tony Wendorf & Associates Team* • Keller Williams Realty-Lake Country
See all
Provided by Redfin
Sale history for 4020 S Sunny Slope Rd
Date
Event
Price
Public Records
Aug 14, 2014
Sold
$172,000
$135/sq ft
Year
Property tax
Land + Additions
Assessment*
2025
$4,407 (−13.0%)
$195,100 + $163,600
$358,700
2024
$5,064 (+66.2%)
$255,400 + $182,600
$438,000
2023
$3,047 (−2.7%)
$59,800 + $147,400
$207,200
2022
$3,132 (+5.9%)
$59,800 + $147,400
$207,200
2021
$2,957 (−1.8%)
$59,800 + $147,400
$207,200
2020
$3,011 (−2.3%)
$59,800 + $147,400
$207,200
2019
$3,083 (−1.7%)
$59,800 + $147,400
$207,200
2018
$3,135 (−4.6%)
$59,800 + $147,400
$207,200
2017
$3,286 (−0.9%)
$55,500 + $139,400
$194,900
2016
$3,315 (+0.2%)
$55,500 + $139,400
$194,900
2014
$3,310
$52,600 + $132,100
$184,700
Tax history for 4020 S Sunny Slope Rd
Year
Property tax
Land + Additions
Assessment*
2025
$4,407 (−13.0%)
$195,100 + $163,600
$358,700
2024
$5,064 (+66.2%)
$255,400 + $182,600
$438,000
2023
$3,047 (−2.7%)
$59,800 + $147,400
$207,200
2022
$3,132 (+5.9%)
$59,800 + $147,400
$207,200
2021
$2,957 (−1.8%)
$59,800 + $147,400
$207,200
2020
$3,011 (−2.3%)
$59,800 + $147,400
$207,200
2019
$3,083 (−1.7%)
$59,800 + $147,400
$207,200
2018
$3,135 (−4.6%)
$59,800 + $147,400
$207,200
2017
$3,286 (−0.9%)
$55,500 + $139,400
$194,900
2016
$3,315 (+0.2%)
$55,500 + $139,400
$194,900
2014
$3,310
$52,600 + $132,100
$184,700
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Zoning
R-4.5
Medium-Density Single-Family Residential District
The R-4.5 Medium-Density Single-Family Residential District is intended to provide for single-family residential development, at a density not to exceed 2.9 dwelling units per net residential acre, served by public sanitary sewer and water facilities.
Permitted uses
Include but are not limited to:
Housing-Single unit
Housing-Other
Fire house
Police station
Property details
Interior
Basement Information
Basement Sq. Ft: 1,272
Basement Type: Full
Bathroom Information
# of Full Baths: 1
Heating & Cooling
Heating Fuel Type: Gas
Heating Type: Forced Air
Room Information
# of Rooms: 5
Exterior
Exterior Information
Foundation Type: Continuous Footing
Building Style Type: Ranch
Exterior Wall: Frame
Roof Covering Type: Clay Tile
Roof Shape Type: Clay Tile
Building Improvement Type: Single Family
Property Information
Living Sq. Ft: 1,272
Ground Floor Sq. Ft: 1,272
Building Sq. Ft: 3,048
# of Stories: 1
Legal Description: PT W.50 NW.25 NW.25 SEC 24 T6N R20E COM 645.37 FT S OF NW COR,TH S 100 FT, TH E 655.5 FT,TH N 100 FT,TH W 655.5 FT TO BGN EXC W 50 FT FOR ROAD R1283 I839 DOC #4095040 08/14/2014
Parking & Garage Information
Parking Type: Attached Garage
Garage/Parking Sq. Ft: 504
Garage / Carport Type: Attached
Lot Information
# of Buildings: 1
Land Sq. Ft: 60,156
Municipality Name: NEW BERLIN CITY
Acres: 1.381
Zoning Code: R4.5
State Use Description: RESIDENTIAL
Utility Information
Sewer Type: Public
Water Service Type: Public
Utility Type: Public
Financial
Assessor Information
Assessment Year: 2025
Tax District County: NEW BERLIN CITY
Public facts
Beds: 2
Baths: 1.0
Sq. Ft.: 1,272
Stories: 1.0
Lot Size: 1.38 acres
Style: Single Family Residential
Year Built: 1951
Year Renovated: 1975
County: Waukesha County
APN: NBC 1246995002
Home facts updated by county records on Jun 15, 2026
Around this home
Schools
Elmwood Elementary School
Public PreK-6 • Assigned • 2.5mi
9/10
Eisenhower Middle/High School
Public 7-12 • Assigned • 0.5mi
10/10
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
1/10 Heat Factor
7 days above 99° expected this year, 12 days in 30 years
2/10 Wind Factor
Minor risk of severe winds over next 30 years
2/10 Air Factor
1 unhealthy days expected this year, 1 days in 30 years
Provided by First Street
Historical weather
New Berlin, WI • 53151
Average low and high temperatures (°F)
26
12
34
18
50
30
58
39
66
46
78
59
81
64
78
61
76
56
65
46
47
34
33
20
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 3.4 hours in December, placing it below the
U.S. average for solar exposure.
10 hrs
3.4 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$404,000 – $489,000
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