$863,559
$391K since sold in January 2015$12K since October
This home's estimate is 4.7% lower than the average sale price ($906K) of 5 comparable homes.
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Off market jan 2015 for $472K
$863,559
Est. refi paymentEst. refi $3,169/mo
4
bd•
2 ba
•
1,476
sq ft
421 S Rock River Rd, Diamond Bar, CA 91765
About this home
Single-familyProperty Type
1971Year Built
7,182 sq ftLot Size
$585Est. Price/Sq.Ft.
2 car garageParking
Listed by Ryan Call •DRE #01738456 • RYAN L. CALL
Bought with OUT OF AREA TEM BRD •DRE #0 • Src Non-mls
Redfin checked: 2 minutes ago
•Source:CRMLS #SW14115577
Redfin Estimate
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Sell
$537,686
Est. take-home
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Refinance
$0
Est. cash available
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Rent
$3,217/mo
Redfin rental estimate
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Market trends in 91765, CA
Last updated October 2026
Buyer's Market
Seller's Market
Balanced market
Sale-to-list price
97.1%
0.7% MoM
Median sale price
$1.1M
$19K MoM
Avg. days on market
67d
6 days MoM
Recently sold homes
81
11 MoM
New listings for sale
Provided by Redfin
Property details
Around this home
Lifestyle
Provided by Walk Score and Local Logic
Local insights from Redfin agents
Sun exposure
In this area, properties receive around 10.1 hours in June and 6.8 hours in December, placing it above the U.S. average for solar exposure.
JuneDecember
Provided by Shadowmap
Property information provided by CRMLS when last listed in 2014. This data may not match . Learn more.
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