17090 W Observatory Rd is a 2,246 square foot house on a 2.51 acre lot with 4 bedrooms and 2 bathrooms. - it last sold on October 01, 1991 for $154,500. Based on Redfin's New Berlin data, we estimate the home's value is $511,383.
Single-familyProperty Type
1950Year Built
2.51 acresLot Size
$228Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$511,383
$357K since sold in October 1991$6,000 since July
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 5.5% higher than the average sale price ($485K) 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
R-3
Suburban Single-Family Residential District
The R-3 Suburban Single-Family Residential District is intended to provide for single-family residential development, at densities not to exceed two dwelling units per net acre. This district is further intended to be used for residentially platted lots already existing at the time of the adoption of this chapter and so identified for this density range on the adopted City Comprehensive Plan or component thereof. Suburban residential lots are typically served by private on-site sewage disposal systems and private wells.
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: 1,404
Basement Type: Full
Bathroom Information
# of Full Baths: 2
Heating & Cooling
Heating Type: Forced Air
Fireplace Information
# of Fireplaces: 2
Has Fireplace
Room Information
# of Rooms: 7
Exterior
Exterior Information
Foundation Type: Continuous Footing
Building Style Type: Cape Cod
Exterior Wall: Frame
Roof Covering Type: Clay Tile
Roof Shape Type: Clay Tile
Building Improvement Type: Single Family
Property Information
Living Sq. Ft: 2,246
Ground Floor Sq. Ft: 1,404
Building Sq. Ft: 4,295
# of Stories: 1
Legal Description: PT NW.25 SEC 22 T6N R20E COM ON W LI 1327.70 FT S OF NW COR,TH E 231 FT PL BGN,TH E 179 FT,TH N 610 FT, TH W 179 FT,TH S 610 FT/BG R1370/505
Parking & Garage Information
Parking Type: Attached Garage
Garage/Parking Sq. Ft: 645
Garage / Carport Type: Attached
Lot Information
# of Buildings: 1
Land Sq. Ft: 109,336
Municipality Name: NEW BERLIN CITY
Acres: 2.51
Zoning Code: R3
State Use Description: RESIDENTIAL
Financial
Assessor Information
Assessment Year: 2025
Tax District County: NEW BERLIN CITY
Public facts
Beds: 4
Baths: 2.0
Sq. Ft.: 2,246
Stories: 1.0
Lot Size: 2.51 acres
Style: Single Family Residential
Year Built: 1950
Year Renovated: 1980
County: Waukesha County
APN: NBC 1238976
Home facts updated by county records on Jun 15, 2026
Around this home
Schools
Ronald Reagan Elementary School
Public PreK-6 • Assigned • 0.3mi
6/10
New Berlin Middle/High School
Public 7-12 • Assigned • 1.6mi
9/10
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
3/10 Fire Factor
0.31% chance of being in a wildfire in next 30 years
1/10 Heat Factor
7 days above 100° expected this year, 13 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
62
76
56
65
46
47
34
33
20
Jan
Feb
Mar
Apr
May
Jun
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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
$486,000 – $589,000
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