1657 Observation Ct
Antioch, CA 94531
4 bd 3 ba 2,345 sqft Built 2002 Lot 12,616 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 | $437,537 | $165,961 | $603,498 | $7,128 |
| 2024 | $437,537 | $165,961 | $603,498 | $6,971 |
| 2023 | $420,548 | $159,517 | $580,065 | $6,727 |
| 2022 | $412,302 | $156,390 | $568,692 | $6,623 |
| 2021 | $404,218 | $153,324 | $557,542 | $6,430 |
| 2020 | $400,074 | $151,752 | $551,826 | $6,377 |
| 2019 | $392,230 | $148,777 | $541,007 | $6,300 |
| 2018 | $384,540 | $145,860 | $530,400 | $6,066 |
| 2017 | $318,949 | $136,551 | $455,500 | $5,218 |
| 2016 | $289,190 | $123,810 | $413,000 | $4,755 |
| 2015 | $277,636 | $118,864 | $396,500 | $4,929 |
| 2014 | $253,129 | $108,371 | $361,500 | $5,345 |
| 2013 | $161,050 | $68,950 | $230,000 | $5,411 |
| 2012 | $172,603 | $73,897 | $246,500 | $5,531 |
| 2011 | $156,148 | $66,852 | $223,000 | $5,292 |
| 2010 | $197,110 | $84,390 | $281,500 | $5,876 |
| 2009 | $197,111 | $84,389 | $281,500 | $5,877 |
| 2008 | $272,383 | $116,617 | $389,000 | $6,960 |
| 2007 | $291,632 | $124,857 | $416,489 | $7,237 |
Property facts
Year built
2002
Property type
single_family
Stories
1
Beds
4
Baths
3
Living area
2,345 sqft
Lot size
12,616 sqft
ZIP code
94531
City
Antioch
Street
Observation Ct
Coordinates
37.95740, -121.79189
Comparable properties nearby
Frequently asked questions
When did 1657 Observation Ct last sell?
No public-record sale is on file for 1657 Observation Ct.
What is the current tax assessment for 1657 Observation Ct?
The most recent total assessment for 1657 Observation Ct (year 2025) is $603,498 with $7,128 in property tax.
When was 1657 Observation Ct built?
1657 Observation Ct was built in 2002.
How does 1657 Observation Ct compare to others on Observation Ct?
We track 3 other properties on Observation Ct. Browse the list under "Other properties on Observation Ct" to compare beds, baths, and sale history.
What are the property facts for 1657 Observation Ct?
1657 Observation Ct is a 4 bed, 3 bath, 2,345 sqft, 12,616 sqft lot single_family.
Is 1657 Observation Ct a flip candidate?
No — 1657 Observation Ct does not appear in our flips dataset.
Is 1657 Observation Ct a tax-appeal candidate?
No — 1657 Observation Ct is not currently flagged as a tax-appeal candidate.
Forecast for this area
ZIP-area linear projection — not a per-property automated valuationQuarterly trend
-4.6%
Implied 1-yr
-18.4%
2026 Q3
$568.5K
2026 Q4
$568.5K
ZIP 94531 — Median Price History + Forecast
Explore nearby
Geography
Other properties on Observation Ct