23240 Ridge Line Rd
Diamond Bar, CA 91765
6 bd 9 ba 7,884 sqft Built 1987 Lot 47,729 sqft single_family
Most recent sale
$2,400,000
Apr 1, 2022
Location
Timeline: Sale, Listing & Tax History
Recorded events
| Date | Event | Price | Source |
|---|---|---|---|
| Apr 1, 2022 | Sold | $2,400,000 | MLS #TR21136588 |
| Jul 1, 2021 | Listed | $2,580,000 | MLS #TR21136588 |
| Sep 10, 2020 | Listed | $2,780,000 | MLS #TR20187388 |
| Aug 22, 2020 | Price changed | $2,780,000 | MLS #TR20094199 |
| May 19, 2020 | Listed | $2,880,000 | MLS #TR20094199 |
| Jun 4, 2019 | Listed | $2,980,000 | MLS #TR19129248 |
| Feb 13, 2014 | Sold | $1,830,000 | Public Record |
| Nov 6, 2009 | Sold | $1,072,000 | MLS #S587619 |
| Aug 28, 2009 | Listed | $1,215,700 | MLS #S587619 |
| Jun 6, 2009 | Listing removed | $1,650,000 | CRMLS |
| Apr 4, 2009 | Listed | $1,650,000 | MLS #H09033531 |
| Mar 14, 2009 | Listing removed | $1,650,000 | CRMLS |
| Sep 11, 2008 | Listed | $1,650,000 | MLS #H08130823 |
| Nov 4, 2007 | Listing removed | $1,695,000 | ITECH |
| Jul 16, 2007 | Listed | $1,695,000 | MLS #12096073 |
| Apr 19, 1995 | Sold | $630,000 | Public Record |
| Jun 30, 1988 | Sold | $610,000 | Public Record |
| Sep 1, 1983 | Sold | $125,000 | Public Record |
Tax assessment history
| Year | Building | Land | Total assessed | Tax paid |
|---|---|---|---|---|
| 2025 | $1,047,310 | $1,840,699 | $2,888,009 | $35,882 |
| 2024 | $1,047,310 | $1,840,699 | $2,888,009 | $30,292 |
| 2023 | $1,020,000 | $1,428,000 | $2,448,000 | $29,513 |
| 2022 | $1,155,155 | $958,777 | $2,113,932 | $25,580 |
| 2021 | $1,132,505 | $939,978 | $2,072,483 | $25,097 |
| 2020 | $1,120,893 | $930,340 | $2,051,233 | $24,775 |
| 2019 | $1,098,915 | $912,099 | $2,011,014 | $24,301 |
| 2018 | $1,077,368 | $894,215 | $1,971,583 | $23,320 |
| 2017 | $1,056,244 | $876,682 | $1,932,926 | $22,242 |
| 2016 | $1,035,534 | $859,493 | $1,895,027 | $21,558 |
| 2015 | $1,019,980 | $846,583 | $1,866,563 | $21,700 |
| 2014 | $1,145,898 | $526,495 | $1,672,393 | $19,915 |
| 2013 | $894,472 | $524,116 | $1,418,588 | $16,861 |
| 2012 | $876,934 | $513,840 | $1,390,774 | $16,826 |
| 2010 | $572,000 | $500,000 | $1,072,000 | $12,951 |
| 2009 | $562,118 | $573,591 | $1,135,709 | $13,712 |
| 2008 | $551,097 | $562,345 | $1,113,442 | $13,367 |
| 2007 | $540,292 | $551,319 | $1,091,611 | $12,692 |
Property facts
Year built
1987
Property type
single_family
Stories
3
Beds
6
Baths
9
Living area
7,884 sqft
Lot size
47,729 sqft
ZIP code
91765
City
Diamond Bar
Street
Ridge Line Rd
Coordinates
33.98851, -117.81297
Comparable properties nearby
Investment analysis
Estimates based on local averages — not personalized adviceEstimated monthly rent
$25,229
Gross rental yield
12.61%
Implied cap rate
8.20%
Trend-extrapolated value
—
Frequently asked questions
When did 23240 Ridge Line Rd last sell?
23240 Ridge Line Rd most recently sold on Apr 1, 2022 for $2,400,000.
What is the current tax assessment for 23240 Ridge Line Rd?
The most recent total assessment for 23240 Ridge Line Rd (year 2025) is $2,888,009 with $35,882 in property tax.
How does 23240 Ridge Line Rd's assessment compare to its last sale price?
The current assessment is 20.3% above the last sale price of $2,400,000.
When was 23240 Ridge Line Rd built?
23240 Ridge Line Rd was built in 1987.
How does 23240 Ridge Line Rd compare to others on Ridge Line Rd?
We track 8 other properties on Ridge Line Rd. Browse the list under "Other properties on Ridge Line Rd" to compare beds, baths, and sale history.
What are the property facts for 23240 Ridge Line Rd?
23240 Ridge Line Rd is a 6 bed, 9 bath, 7,884 sqft, 47,729 sqft lot single_family.
Is 23240 Ridge Line Rd a flip candidate?
No — 23240 Ridge Line Rd does not appear in our flips dataset.
Is 23240 Ridge Line Rd a tax-appeal candidate?
Yes — 23240 Ridge Line Rd appears in our tax-appeal candidates list, meaning its current assessment exceeds its recent sale price by 15% or more.
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 Ridge Line Rd