Google street view image for 17221 W Observatory Rd, New Berlin, WI 53146

Off market feb 1998 for $135K

$405,943

Est. refi paymentEst. refi $1,005/mo

•

1.5 ba

•

1,560

sq ft

17221 W Observatory Rd, New Berlin, WI 53146

About this home

17221 W Observatory Rd is a 1,560 square foot house on a 0.52 acre lot with 4 bedrooms and 1.5 bathrooms. - it last sold on February 27, 1998 for $135,000. Based on Redfin's New Berlin data, we estimate the home's value is $405,943.

Single-familyProperty Type

1965Year Built

0.52 acresLot Size

$260Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$405,943

$271K since sold in February 1998$5,000 since September

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 10.5% lower than the average sale price ($453K) of 6 comparable homes.

SOLD SEP 4, 2026
$500,000
A
3 beds2 baths1,835 sq ft
18571 W Hillcrest Dr, New Berlin, WI 53146
SOLD JUN 18, 2026
$400,000
B
3 beds1.5 baths1,323 sq ft
17321 W Observatory Rd, New Berlin, WI 53146
SOLD JUN 12, 2026
$405,000
C
3 beds1.5 baths1,540 sq ft
3210 S Ventura Dr, New Berlin, WI 53151
SOLD MAY 4, 2026
$365,000
D
3 beds1.5 baths1,416 sq ft
17085 W Salentine Dr, New Berlin, WI 53151
SOLD AUG 5, 2026
$480,000
E
3 beds1.5 baths1,736 sq ft
18260 W Willow Rd, New Berlin, WI 53146
SOLD AUG 18, 2026
$570,000
F
3 beds2 baths2,070 sq ft
4450 S Hearthside Dr, New Berlin, WI 53151

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Earn from this home

Sell

$372,557

Est. take-home

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Est. cash available

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Rent

$2,214/mo

Redfin rental estimate

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Market trends in 53146, WI

Last updated September 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-list price

101.2%

0.7% MoM

Median sale price

$470K

$3K MoM

Avg. days on market

34d

2 days MoM

Recently sold homes

1 MoM

New listings for sale

$349,900
4 beds1 bath1,362 sq ft
17230 W Jills Dr, New Berlin, WI 53146
Lisa Pfaff • Shorewest Realtors, Inc.
$399,900
3 beds1.5 baths1,397 sq ft
1425 S Sunny Crest Dr, New Berlin, WI 53146
Linda Flood • Stone Gate Realty, LLC
See all

Provided by Redfin

Sale history for 17221 W Observatory Rd

Year

Property tax

Land + Additions

Assessment*

2025

$3,617 (+6.6%)

$117,900 + $177,000

$294,900

2024

$3,393 (+9.2%)

$117,900 + $177,000

$294,900

2023

$3,106 (−2.7%)

$56,200 + $154,900

$211,100

2022

$3,193 (+5.9%)

$56,200 + $154,900

$211,100

2021

$3,015 (−1.8%)

$56,200 + $154,900

$211,100

2020

$3,069 (−2.3%)

$56,200 + $154,900

$211,100

2019

$3,143 (−1.7%)

$56,200 + $154,900

$211,100

2018

$3,196 (+1.4%)

$56,200 + $154,900

$211,100

2017

$3,151 (−0.9%)

$46,500 + $140,500

$187,000

2016

$3,178 (+0.2%)

$46,500 + $140,500

$187,000

2014

$3,172 (−0.3%)

$44,100 + $133,100

$177,200

2013

$3,182

$44,100 + $133,100

$177,200

Tax history for 17221 W Observatory Rd

Year

Property tax

Land + Additions

Assessment*

2025

$3,617 (+6.6%)

$117,900 + $177,000

$294,900

2024

$3,393 (+9.2%)

$117,900 + $177,000

$294,900

2023

$3,106 (−2.7%)

$56,200 + $154,900

$211,100

2022

$3,193 (+5.9%)

$56,200 + $154,900

$211,100

2021

$3,015 (−1.8%)

$56,200 + $154,900

$211,100

2020

$3,069 (−2.3%)

$56,200 + $154,900

$211,100

2019

$3,143 (−1.7%)

$56,200 + $154,900

$211,100

2018

$3,196 (+1.4%)

$56,200 + $154,900

$211,100

2017

$3,151 (−0.9%)

$46,500 + $140,500

$187,000

2016

$3,178 (+0.2%)

$46,500 + $140,500

$187,000

2014

$3,172 (−0.3%)

$44,100 + $133,100

$177,200

2013

$3,182

$44,100 + $133,100

$177,200

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

Zoning

R-4

Low-Density Single-Family Residential District

The R-4 Low-Density Single-Family Residential District is intended to provide for existing single-family residential development, at a density not to exceed 2.2 dwelling units per net residential acre, and new large-lot subdivisions 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: 1,040
Basement Type: Full

Bathroom Information
# of Full Baths: 1
# of 1/2 Baths: 1

Heating & Cooling
Heating Fuel Type: Gas
Heating Type: Forced Air

Fireplace Information
Has Fireplace

Room Information
# of Rooms: 6

Exterior

Exterior Information
Floor Construction Type: Plywood
Foundation Type: Continuous Footing
Building Style Type: Cape Cod
Exterior Wall: Aluminum/Vinyl
Roof Covering Type: Clay Tile
Roof Shape Type: Clay Tile
Building Improvement Type: Single Family

Property Information
Subdivision Name: OBSERVATORY HEIGHTS
Living Sq. Ft: 1,560
Ground Floor Sq. Ft: 1,040
Building Sq. Ft: 2,600
# of Stories: 1
Legal Description: LOT 2 BLK 7 OBSERVATORY HEIGHTS PT NE1/4 SEC 21 T6N R20E

Parking & Garage Information
Parking Type: Detached Garage
Garage / Carport Type: Detached

Lot Information
# of Buildings: 1
Land Sq. Ft: 22,782
Legal Lot Number: 2
Legal Block Number: 7
Municipality Name: NEW BERLIN CITY
Acres: 0.523
Depth Footage: 190
Front Footage: 120
Zoning Code: R4
State Use Description: RESIDENTIAL

Utility Information
Sewer Type: Septic
Water Service Type: Well
Utility Type: Gas Public

Financial

Assessor Information
Assessment Year: 2025
Tax District County: NEW BERLIN CITY

Public facts

Beds: 4
Baths: 1.5
Sq. Ft.: 1,560
Stories: 1.0
Lot Size: 0.52 acres
Style: Single Family Residential
Year Built: 1965
Year Renovated: 1975
County: Waukesha County
APN: NBC 1233058

Home facts updated by county records on Sep 21, 2026

Around this home

Schools

Ronald Reagan Elementary School

Public PreK-6 • Assigned • 0.2mi

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 • 53146

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 3.4 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

$386,000 – $467,000

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New listings for sale in 53146

$349,900

4 beds1 bath1,362 sq ft

17230 W Jills Dr, New Berlin, WI 53146

Lisa Pfaff • Shorewest Realtors, Inc.

$399,900

3 beds1.5 baths1,397 sq ft

1425 S Sunny Crest Dr, New Berlin, WI 53146

Linda Flood • Stone Gate Realty, LLC

Home values near 17221 W Observatory Rd

Data from public records.

Address	Redfin Estimate
17321 West Observatory Rd, New Berlin, WI 3 Beds \| 1.5 Baths \| 1323 Sq. Ft.	$441,275
17201 West Observatory Rd, New Berlin, WI 3 Beds \| 1.5 Baths \| 1504 Sq. Ft.	$387,787

Address	Redfin Estimate
17200 West Observatory Rd, New Berlin, WI 3 Beds \| 1 Baths \| 1822 Sq. Ft.	$338,008
17326 West Observatory Rd, New Berlin, WI 3 Beds \| 1.5 Baths \| 1162 Sq. Ft.	$389,570

Address	Redfin Estimate
17135 West Observatory Rd, New Berlin, WI 3 Beds \| - Baths \| 2088 Sq. Ft.	$513,301
17310 West Observatory Rd, New Berlin, WI 3 Beds \| 1.5 Baths \| 1144 Sq. Ft.	$346,413

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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 53146, WI

Sale history for 17221 W Observatory Rd

Tax history for 17221 W Observatory Rd

Zoning

Property details

Around this home

Schools

Lifestyle

Climate risks

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 53146

Home values near 17221 W Observatory Rd

More real estate resources