3728 Castle Rock Rd
Diamond Bar, CA 91765
4 bd 2 ba 1,521 sqft Built 1963 Lot 7,253 sqft single_family
Most recent sale
$850,000
Aug 5, 2022
Location
Timeline: Sale, Listing & Tax History
Recorded events
| Date | Event | Price | Source |
|---|---|---|---|
| Aug 5, 2022 | Sold | $850,000 | MLS #CV22129828 |
| Jun 15, 2022 | Listed | $860,000 | MLS #CV22129828 |
| Dec 14, 2011 | Listing removed | $2,050 | CRMLS |
| Nov 23, 2011 | Listed for rent | $2,050 | CRMLS |
| Mar 31, 2011 | Sold | $310,000 | MLS #P315267 |
| Oct 31, 2010 | Listing removed | $2,050 | CRMLS |
| Oct 25, 2010 | Listed for rent | $2,050 | CRMLS |
| Oct 23, 2010 | Listing removed | $2,100 | CRMLS |
| Oct 18, 2010 | Listing removed | $458,000 | CRMLS |
| Sep 20, 2010 | Listed for rent | $2,100 | CRMLS |
| Sep 9, 2010 | Price changed | $458,000 | MLS #H10088629 |
| Aug 18, 2010 | Listed | $468,000 | MLS #H10088629 |
| Oct 22, 2008 | Sold | $420,000 | Public Record |
| Aug 29, 2008 | Listed | $429,000 | MLS #S544845 |
| Dec 9, 2002 | Sold | $310,000 | Public Record |
| Oct 14, 2002 | Listed | $319,000 | MLS #P315267 |
| May 13, 1987 | Sold | $124,000 | Public Record |
Tax assessment history
| Year | Building | Land | Total assessed | Tax paid |
|---|---|---|---|---|
| 2025 | $176,868 | $707,472 | $884,340 | $11,332 |
| 2024 | $176,868 | $707,472 | $884,340 | $10,735 |
| 2023 | $170,000 | $680,000 | $850,000 | $10,378 |
| 2022 | $166,730 | $342,926 | $509,656 | $6,449 |
| 2021 | $163,461 | $336,202 | $499,663 | $6,330 |
| 2020 | $161,785 | $332,755 | $494,540 | $6,250 |
| 2019 | $158,613 | $326,231 | $484,844 | $6,131 |
| 2018 | $155,503 | $319,835 | $475,338 | $5,892 |
| 2017 | $152,454 | $313,564 | $466,018 | $5,625 |
| 2016 | $149,465 | $307,416 | $456,881 | $5,462 |
| 2015 | $147,220 | $302,799 | $450,019 | $5,495 |
| 2014 | $144,337 | $296,868 | $441,205 | $5,502 |
| 2013 | $141,700 | $291,300 | $433,000 | $5,384 |
| 2012 | $119,100 | $244,900 | $364,000 | $4,669 |
| 2010 | $137,074 | $281,930 | $419,004 | $5,244 |
| 2009 | $137,400 | $282,600 | $420,000 | $5,228 |
| 2008 | $99,456 | $242,358 | $341,814 | $4,208 |
| 2007 | $97,506 | $237,606 | $335,112 | $3,992 |
Property facts
Year built
1963
Property type
single_family
Stories
1
Beds
4
Baths
2
Living area
1,521 sqft
Lot size
7,253 sqft
ZIP code
91765
City
Diamond Bar
Street
Castle Rock Rd
Coordinates
33.96230, -117.85135
Comparable properties nearby
Block-level micro-comps
Same street, ±3 house numbers, sold in the last 24 monthsInvestment analysis
Estimates based on local averages — not personalized adviceEstimated monthly rent
$4,867
Gross rental yield
6.87%
Implied cap rate
4.47%
Trend-extrapolated value
—
Frequently asked questions
When did 3728 Castle Rock Rd last sell?
3728 Castle Rock Rd most recently sold on Aug 5, 2022 for $850,000.
What is the current tax assessment for 3728 Castle Rock Rd?
The most recent total assessment for 3728 Castle Rock Rd (year 2025) is $884,340 with $11,332 in property tax.
How does 3728 Castle Rock Rd's assessment compare to its last sale price?
The current assessment is 4.0% above the last sale price of $850,000.
When was 3728 Castle Rock Rd built?
3728 Castle Rock Rd was built in 1963.
How does 3728 Castle Rock Rd compare to others on Castle Rock Rd?
We track 8 other properties on Castle Rock Rd. Browse the list under "Other properties on Castle Rock Rd" to compare beds, baths, and sale history.
What are the property facts for 3728 Castle Rock Rd?
3728 Castle Rock Rd is a 4 bed, 2 bath, 1,521 sqft, 7,253 sqft lot single_family.
Is 3728 Castle Rock Rd a flip candidate?
No — 3728 Castle Rock Rd does not appear in our flips dataset.
Is 3728 Castle Rock Rd a tax-appeal candidate?
No — 3728 Castle Rock Rd 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 Castle Rock Rd