1639 Loyalty Ct
Diamond Bar, CA 91789
5 bd 6 ba 3,467 sqft Built 2018 Lot 3,600 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 | $543,032 | $946,181 | $1,489,213 | $18,386 |
| 2024 | $543,032 | $946,181 | $1,489,213 | $17,475 |
| 2023 | $521,947 | $909,441 | $1,431,388 | $17,047 |
| 2022 | $511,713 | $891,609 | $1,403,322 | $16,693 |
| 2021 | $501,680 | $874,127 | $1,375,807 | $16,383 |
| 2020 | $496,536 | $865,164 | $1,361,700 | $16,171 |
| 2019 | $486,800 | $848,200 | $1,335,000 | $15,854 |
| 2018 | — | $534,582 | $534,582 | $6,583 |
Property facts
Year built
2018
Property type
single_family
Stories
3
Beds
5
Baths
6
Living area
3,467 sqft
Lot size
3,600 sqft
ZIP code
91789
City
Diamond Bar
Street
Loyalty Ct
Coordinates
33.98945, -117.85493
Comparable properties nearby
Frequently asked questions
When did 1639 Loyalty Ct last sell?
No public-record sale is on file for 1639 Loyalty Ct.
What is the current tax assessment for 1639 Loyalty Ct?
The most recent total assessment for 1639 Loyalty Ct (year 2025) is $1,489,213 with $18,386 in property tax.
When was 1639 Loyalty Ct built?
1639 Loyalty Ct was built in 2018.
How does 1639 Loyalty Ct compare to others on Loyalty Ct?
We track 2 other properties on Loyalty Ct. Browse the list under "Other properties on Loyalty Ct" to compare beds, baths, and sale history.
What are the property facts for 1639 Loyalty Ct?
1639 Loyalty Ct is a 5 bed, 6 bath, 3,467 sqft, 3,600 sqft lot single_family.
Is 1639 Loyalty Ct a flip candidate?
No — 1639 Loyalty Ct does not appear in our flips dataset.
Is 1639 Loyalty Ct a tax-appeal candidate?
No — 1639 Loyalty 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
+2.3%
Implied 1-yr
+9.0%
2026 Q3
$1.61M
2026 Q4
$1.64M
ZIP 91789 — Median Price History + Forecast
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Geography
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