Financial
Distress signals
Property profile

21810 Copley Dr Diamond Bar, CA 91765

OFF-MARKET
Office buildings
Property ID
US10-0375745
64,478 SF 6.47 ac lot Built 1999
Last sale Jan 2005 · $9,858,590
Entity Owned Owner of record is a legal entity (LLC / corporation). 16-yr Hold Held for 16 years. ~ Est. High Equity Modeled equity is high. Estimate, not a fact.
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Market Trends Soon

Ownership intelligence

Who controls the opportunity?

Resolved identity, portfolio, hold profile and investor signals. Included in the full report.

Owner contacts

Can we reach the decision maker?

Skip-traced phones and e-mails of the owner. Included with the full report.

Mortgages

What is owed, to whom, and when it comes due

Recorded lenders, amounts and estimated maturities of the owner's loan book — in the full report.

Property tax

What does the county charge?
Assessed value · 2024$5.30M
Assessed land$5.30M

Value estimate

· Sep 2026
$13.73M
$12.36M – $15.10M
CAP approach$17.08M
Sales comparison$9.37M

Realmo valuation models over county records and 9 qualifying comparable sales.

Recently sold

What actually traded nearby?
$510/SF
ZIP average, outlier-cleaned · 42 recorded sales of this use type
Observed band · Q1–Q3$430 – $660
Qualifying comparables9

Cap rate analysis

How does the asset earn?

No income signal is modeled for this parcel yet — the Cap Rates tab runs the workflow.

Zoning insight

What can be built here?
LCR110000*
JurisdictionLOS ANGELES

Location intelligence

Which uses thrive at this corner?
Best fit: Building Supply
Demand heat for this use is drawn on the map · LocInt grid
Demand index
Building Supply32.5
Auto Repair Shop30.7
Restaurant27.4

Location

21810 Copley Dr Diamond Bar, CA 91765-4460
County assessor Recorded deeds · 7 transfers 9 qualifying comp sales Zoning catalog

Every figure names its source: public record, benchmark, or modeled. Coverage varies by property — thin data is stated as missing, never invented.

Comparables

6 recorded sales · 15 properties nearby
Recent sales nearby
6 recorded sales in this ZIP, last 8 years
Address Sale price Sold Size
21688 Gtwy Ctr, Diamond Bar, CA 91765-2451 $23,000,230 Jul 2023 84,188 SF
21308 Pathfinder, Diamond Bar, CA 91765-2761 $2,585,025 Feb 2023 15,358 SF
1930 Brea Cyn, Diamond Bar, CA 91765-4009 $3,850,038 Jan 2023 22,080 SF
21950 Copley, Diamond Bar, CA 91765-4461 $16,275,162 Dec 2022 75,095 SF
1350 Vly Vis, Diamond Bar, CA 91765-3910 $3,900,039 Nov 2021 12,800 SF
1370 Vly Vis, Diamond Bar, CA 91765-3911 $22,250,222 Jun 2019 51,686 SF
Sale prices and dates as our records hold them, one row per building. A deed can cover more of a building than the size shown, so read the price against the size rather than dividing one by the other.
Comparable nearby
6 properties of the same type nearby
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