509 Julian Ct
Diamond Bar, CA 91765
3 bd 2 ba 1,384 sqft Built 1986 Lot 9,008 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 | $138,223 | $523,305 | $661,528 | $8,963 |
| 2024 | $138,223 | $523,305 | $661,528 | $8,258 |
| 2023 | $132,856 | $502,986 | $635,842 | $8,096 |
| 2022 | $130,251 | $493,124 | $623,375 | $7,970 |
| 2021 | $127,698 | $483,455 | $611,153 | $7,794 |
| 2020 | $126,389 | $478,498 | $604,887 | $7,767 |
| 2019 | $123,911 | $469,116 | $593,027 | $7,966 |
| 2018 | $121,482 | $459,918 | $581,400 | $7,379 |
| 2017 | $119,100 | $450,900 | $570,000 | $7,333 |
| 2016 | $191,783 | $79,238 | $271,021 | $3,559 |
| 2015 | $188,903 | $78,048 | $266,951 | $3,528 |
| 2014 | $185,203 | $76,520 | $261,723 | $3,507 |
| 2013 | $184,366 | $76,175 | $260,541 | $3,473 |
| 2012 | $180,751 | $74,682 | $255,433 | $3,479 |
| 2010 | $177,207 | $73,218 | $250,425 | $3,350 |
| 2009 | $175,883 | $72,671 | $248,554 | $3,259 |
| 2008 | $172,845 | $71,416 | $244,261 | $3,104 |
| 2007 | $169,456 | $70,016 | $239,472 | $3,005 |
Property facts
Year built
1986
Property type
single_family
Stories
1
Beds
3
Baths
2
Living area
1,384 sqft
Lot size
9,008 sqft
ZIP code
91765
City
Diamond Bar
Street
Julian Ct
Coordinates
34.02713, -117.78722
Comparable properties nearby
Frequently asked questions
When did 509 Julian Ct last sell?
No public-record sale is on file for 509 Julian Ct.
What is the current tax assessment for 509 Julian Ct?
The most recent total assessment for 509 Julian Ct (year 2025) is $661,528 with $8,963 in property tax.
When was 509 Julian Ct built?
509 Julian Ct was built in 1986.
How does 509 Julian Ct compare to others on Julian Ct?
We track 1 other property on Julian Ct. Browse the list under "Other properties on Julian Ct" to compare beds, baths, and sale history.
What are the property facts for 509 Julian Ct?
509 Julian Ct is a 3 bed, 2 bath, 1,384 sqft, 9,008 sqft lot single_family.
Is 509 Julian Ct a flip candidate?
No — 509 Julian Ct does not appear in our flips dataset.
Is 509 Julian Ct a tax-appeal candidate?
No — 509 Julian 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
+1.0%
Implied 1-yr
+4.1%
2026 Q3
$1.43M
2026 Q4
$1.44M
ZIP 91765 — Median Price History + Forecast
Explore nearby
Geography
Other properties on Julian Ct