Round Rock Dr, Diamond Bar, CA Property Records

Los Angeles County property records for 3 addresses on Round Rock Dr, Diamond Bar, CA · Last verified July 2026

Round Rock Dr Highlights

Properties 3
Median Sale Price $420,000
Deeds and Mortgages on File 5
Median Price per Sqft $206
Owner Occupied 100%
Median Annual Tax Bill $6,933
Median Year Built 1963
Median Ownership Tenure 14 years

Properties on Round Rock Dr

Owner names and prior sale amounts shown locked below are available instantly with a free trial.

21514 Round Rock Dr

4 bd · 2 ba · 1,315 sqft · built 1963 · 0.225 acres

Last Sale Tax Bill Prior Sale Owner Records
$700,000Nov 2023 $9,1062025 —Nov 2023 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Jun 2026

21515 Round Rock Dr

5 bd · 2 ba · 2,035 sqft · built 1963 · 0.246 acres

Last Sale Tax Bill Prior Sale Owner Records
$420,000Dec 2012 $6,9332025 Amount on Record Dec 2005 2 Names on Record Owner Occupied Assessor + 3 DocumentsUpdated Jun 2026

21522 Round Rock Dr

3 bd · 2 ba · 1,867 sqft · built 1963 · 0.293 acres

Last Sale Tax Bill Prior Sale Owner Records
$382,000Apr 2009 $6,6782025 Amount on Record Sep 2008 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

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