OFF MARKET
Google satellite image for 18511 W Observatory Rd, New Berlin, WI 53146
OFF MARKET
$1,481,322
5
bd
•
4.5 ba
•
3,478
sq ft

18511 W Observatory Rd, New Berlin, WI 53146

map-entry

About this home

18511 W Observatory Rd is a 3,478 square foot house on a 10.8 acre lot with 5 bedrooms and 4.5 bathrooms. Based on Redfin's New Berlin data, we estimate the home's value is $1,481,322.
Single-familyProperty Type
2017Year Built
10.8 acresLot Size
$426Est. Price/Sq.Ft.
Source:Public Records

Redfin Estimate

$1,481,322
$47K since August

This home's estimate is 88.5% higher than the average sale price ($786K) of 6 comparable homes.

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Earn from this home

Sell
$1,394,209
Est. take-home

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Rent
$4,176/mo
Redfin rental estimate

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Market trends in 53146, WI

Last updated August 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-List Price
103.0%

+0.6% MoM

Median sale price
$475K

$49K MoM

Avg. days on market
34d

5 days MoM

Recently sold homes
22

0 MoM

New listings for sale

Provided by Redfin

Sale history for 18511 W Observatory Rd

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

Tax history for 18511 W Observatory Rd

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

Zoning

C-1

Upland Resource Conservancy District

The C-1 Conservancy District is intended to prevent the destruction of valuable natural and man-made resources and, in particular, woodlands, wetlands, wildlife habitat areas, perennial and intermittent streams, major lakes, floodlands and shorelands, significant water recharge and discharge areas, prairies, recreational and scenic areas, natural scientific areas, areas with poor soils or high groundwater, and areas of steep slopes, including primary environmental corridor, secondary environmental corridor and isolated natural resource areas. Regulation of these areas, including environmental corridors, should serve to control erosion and sedimentation and to protect the natural resource base and promote and maintain the natural beauty of the area as well as the health, safety, and welfare of City residents.
Permitted uses

Include but are not limited to:

  • Agriculture
  • Housing-Single unit
  • Infrastructure
  • Agriculture-Cropland
  • Park & open space
  • Wilderness

Property details

Around this home

Schools

Ronald Reagan Elementary School

Public PreK-6 • Assigned • 0.7mi

6/10
New Berlin Middle/High School

Public 7-12 • Assigned • 1.5mi

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

2/10 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 • 53146
Average low and high temperatures (°F)
26
12
34
18
50
30
59
39
66
46
79
60
82
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
$1.41M – $1.70M

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Nearby similar homes

$949,900
4 beds3.5 baths4,995 sq ft
W198S6798 Adrian Dr, Muskego, WI 53150
Jeremy Doering • Doering & Co Real Estate, LLC
$650,000
3 beds2.5 baths2,538 sq ft
S70W16663 Hedgewood Dr, Muskego, WI 53150
David Schmidt • Dave Schmidt Realty
$795,000
4 beds3 baths3,391 sq ft
16995 W Small Rd, New Berlin, WI 53151
Curt Klenz • APEX Realtors LLC
$1,495,000
4 beds3.5 baths4,434 sq ft
2850 S Amor Dr, New Berlin, WI 53146
Lisa Reinecke • RE/MAX Lakeside-West
$579,900
3 beds2 baths1,498 sq ft
S68W18031 Island Dr, Muskego, WI 53150
Michael Langenohl • Grandview Realty

New listings for sale in 53146

$1,495,000
4 beds3.5 baths4,434 sq ft
2850 S Amor Dr, New Berlin, WI 53146
Lisa Reinecke • RE/MAX Lakeside-West

Home values near 18511 W Observatory Rd

Data from public records.

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