397 Observatory Pl
Williams Bay, WI 53191
2 bd 1 ba 700 sqft Built 1940 Lot 82,764 sqft single_family
No recorded sales
Location
Timeline: Sale, Listing & Tax History
Recorded events
No recorded events
No sale or listing events are on file for this property.
Tax assessment history
| Year | Building | Land | Total assessed | Tax paid |
|---|---|---|---|---|
| 2025 | $189,400 | $207,200 | $396,600 | $3,264 |
| 2023 | $106,900 | $157,500 | $264,400 | $2,953 |
| 2022 | $106,900 | $157,500 | $264,400 | $3,400 |
| 2021 | $71,800 | $103,700 | $175,500 | $2,827 |
| 2020 | $600 | $103,700 | $104,300 | $1,670 |
Property facts
Year built
1940
Property type
single_family
Stories
1
Beds
2
Baths
1
Living area
700 sqft
Lot size
82,764 sqft
ZIP code
53191
City
Williams Bay
Street
Observatory Pl
Coordinates
42.57330, -88.55701
Comparable properties nearby
Frequently asked questions
When did 397 Observatory Pl last sell?
No public-record sale is on file for 397 Observatory Pl.
What is the current tax assessment for 397 Observatory Pl?
The most recent total assessment for 397 Observatory Pl (year 2025) is $396,600 with $3,264 in property tax.
When was 397 Observatory Pl built?
397 Observatory Pl was built in 1940.
How does 397 Observatory Pl compare to others on Observatory Pl?
We track 2 other properties on Observatory Pl. Browse the list under "Other properties on Observatory Pl" to compare beds, baths, and sale history.
What are the property facts for 397 Observatory Pl?
397 Observatory Pl is a 2 bed, 1 bath, 700 sqft, 82,764 sqft lot single_family.
Is 397 Observatory Pl a flip candidate?
No — 397 Observatory Pl does not appear in our flips dataset.
Is 397 Observatory Pl a tax-appeal candidate?
No — 397 Observatory Pl is not currently flagged as a tax-appeal candidate.
Forecast for this area
ZIP-area linear projection — not a per-property automated valuationQuarterly trend
+1.4%
Implied 1-yr
+5.6%
2026 Q3
$627.1K
2026 Q4
$635.1K
ZIP 53191 — Median Price History + Forecast
Explore nearby
Geography
Other properties on Observatory Pl