Entity Owned Property summary
Gateway Corporate Center, located at 21660 & 21700 Copley Dr, Diamond Bar, CA 91765, presents a significant retail opportunity in Los Angeles County. This Class B property, built in 1988, offers a total of 16,619 square feet across three stories, situated on a substantial 255-acre lot. The property is currently multi-tenant, with 12,417 square feet of vacant space immediately available for lease. Flexible space options cater to various business needs, ranging from a minimum divisible unit of… 593 square feet to a maximum contiguous space of 8,423 square feet. Ample parking is provided with a 4:1000 ratio. The property's location in Diamond Bar offers excellent access and visibility, making it an ideal location for a variety of retail businesses. This is a rare opportunity to secure prime retail space in a thriving Los Angeles County market. The property's size and flexibility make it suitable for a range of retail concepts, from smaller boutiques to larger-scale operations. Interested parties are encouraged to inquire about lease terms and availability. The property is categorized as Commercial Retail.
Ownership intelligence
Owner of record from public deeds, plus portfolio, hold profile and investor signals where the data supports them. Included with a plan.
Owner contacts
Skip-traced phones and e-mails of the owner. Included with a plan.
Debts
Recorded lenders, amounts and estimated maturities of the owner's loan book — included with a plan.
Property tax · 2024
Value estimate
· Nov 2026Realmo valuation models over county records.
Recently sold
Cap rate analysis
No income signal is modeled for this parcel yet — the Cap Rates tab runs the workflow.
Zoning insight
Location intelligence
Demand index: how under-served this business type is around this point — modeled from the LocInt grid (area demand vs. what already operates, adjusted by real visit traffic). Higher means stronger unmet demand.
Location
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 nearbyComparable nearby
Similar Nearby for Sale
Similar Nearby for Lease
Instant AI valuation built from comps, income signals, and proprietary benchmarks.A defensible range, not a single guess.
from $199/month
- GBA
- 50,745 SF
- Lot area
- 4.33 ac
- Year built
- 1988
- Stories
- 3
- APN
- 8293-050-019
- Zoning
- LCR110000*
- Assessed value · 2024
- $11,933,773
- Annual tax · 2024
- $156,434
Cap rate calculated from real income and expense signals, benchmarked against sales of similar assets nearby.
from $199/month
Price sensitivity
The rate is the decision lever; valuation is the consequence.
The recorded zoning designation, what the district officially allows, and the municipal source it comes from.
Zoning designation
Registration is required before the official district profile is shown.
Unlock the evidence behind ownership: portfolio, transactions, debt and any signals we can model, to help you decide who to contact next.
Registration is required before any owner information is shown.
Phones and e-mails of the people behind this property's owner, traced from licensed contact data.
Owner phones and e-mails come with a plan - traced from licensed contact data, with verification and Do-Not-Call flags on every number.
The mortgage data comes with a plan: recorded loans of the owner - lender, amount, rate and the estimated maturity - as part of the Ownership Intelligence workspace.
Registration is required before any owner information is shown.
Rey answers here. ChatGPT, Grok and Claude get the same data packet.
Includes: Price & PSF · Cap rate · Location · Zoning
Our comps and market reports get this label in your Google results.
One click on Google
- 10 Targeted Leads
- 1 Full Property Report
- Lead Lists by Intent
- Signals & Scores
- Building Details
- Value Estimation
- Cap Rate Evaluation
- Liens & Mortgages
- Ownership & Contacts
- Local Market trends
-
Zoning Insight— not in this plan -
Location Analytics— not in this plan
- 300 Targeted Leads a month
- 30 Full Property Reports
- Lead Lists by Intent
- Signals & Scores
- Building Details
- Value Estimation
- Cap Rate Evaluation
- Liens & Mortgages
- Ownership & Contacts
- Local Market trends
- Zoning Insight
-
Location Analytics— not in this plan
- 1,500 Targeted Leads a month
- 150 Full Property Reports
- Lead Lists by Intent
- Signals & Scores
- Building Details
- Value Estimation
- Cap Rate Evaluation
- Liens & Mortgages
- Ownership & Contacts
- Local Market trends
- Zoning Insight
- Location Analytics
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Sample leads
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Loan from 20077.8% rateHuntington National Bank
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Still being built. It lands here next, beside the two above.
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