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    21660 Copley Dr Diamond Bar, CA 91765

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    For Lease
    Contact for pricing

    Prime Diamond Bar retail space available.

    Lot size:
    16,619 SF

    Property Features for 21660 Copley Dr

    General Information

    Property type
    Retail properties
    Lease Type
    Gross Lease
    RSF (Rentable sq. ft)
    16,619 SF
    Class
    B
    Total Rate
    48195.1

    Building Details

    Year Built
    1988
    Stories
    3

    Spaces For Lease

    at 21660 Copley Dr, Diamond Bar, CA 91765 Contact us
    Unit Suite 165

    $34 /Mo

    Size
    593 SF
    Contact us
    Unit Suite 268

    $34 /Mo

    Size
    1,530 SF
    Contact us
    Unit Suite 188

    $34 /Mo

    Size
    8,423 SF
    Contact us
    Unit Suite 190

    $34 /Mo

    Size
    1,871 SF
    Contact us

    We can help!

    Listing Contact
    Sean Kern
    Sean Kern

    Listing Agency: Cushman & Wakefield Diamond Bar Listing Agent: Sean Kern

    Displayed information is deemed reliable but is not guaranteed and should be independently verified.

    Learn more

    Property Insight Report

    Overview

    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.
    Property Profile Insight Report Location Intelligence

    Current Use by Public Records

    Commercial real estate

    Suggested Use

    Restaurant Real Estate Agency Law Firm Building Supply Spa & Massage Center Dental Office Big Box & Wholesale Store Auto Repair Shop Hair Salon Nail Salon

    Zoning and permitted uses should be independently verified with local authorities.

    Location Insight

    • Map
    • Local Demand
    City
    Diamond Bar
    County
    Los Angeles
    State
    California
    Longitude
    -117.8336613
    Latitude
    33.9977871

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    FAQs

    What type of property is this?
    Retail property - Prime Diamond Bar retail space available.
    Where is this retail property located?
    The property is located at 21660 Copley Dr Diamond Bar, CA.
    What is the lease rate?
    The lease rate is $34 SF/Yr.
    What are key features of this property?
    This property features: Lease Rate: $2.90 per square foot.; 4.1 parking spaces per 1,000 square feet.; Three-story building in a 255-acre master-planned business park.
    (909) 942-4691 Call to check price and availability
    Request Owner's contact information
    21660 Copley Dr Diamond Bar, CA 91765
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    Diamond Bar, CA 91765
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    Realmo Value Estimations

    Realmo estimates a property’s market value using a proprietary methodology that incorporates public data and user-submitted information. This cumulative value is generated by integrating a variety of conventional and innovative methods. 

    Disclaimer

    These figures are not official appraisals and should not be used as a substitute for a valuation performed by a licensed appraiser.
    Actual market value may differ due to factors not captured in the data. Estimates are offered for informational purposes only, and users should conduct independent research before making financial or investment decisions.
    By using this feature, you acknowledge that Realmo is not responsible for actions taken based on these estimates.

    AI approach

    Realmo AI Method estimates property value using machine learning models trained on millions of comparable listings, transactions, and market signals. It analyzes property features, location intelligence data, and current market dynamics to predict the most probable market value in real time.

    Realmo CapRate Calculation

    Realmo calculates the Capitalization Rate (Cap Rate) to help estimate a property's potential return on investment. The Cap Rate is a fundamental metric in commercial real estate that measures the relationship between a property's net operating income and its market value.

    How We Calculate Cap Rate

    Cap Rate Formula:
    Cap Rate (%) = (Net Operating Income / Property Value) × 100

    Net Operating Income (NOI) Formula:
    NOI = Area × Lease Rate × (1 - Vacancy Rate) × (1 - Operating Expense Ratio)

    Components

    Net Operating Income (NOI) represents the annual income a property generates after operating expenses:

    • Area: Building square footage from property records
    • Lease Rate: Annual $/sqft based on market data for the property type and geographic location
    • Vacancy Rate: Percentage of unoccupied space based on market data for the property type and location
    • Operating Expense Ratio: Operating costs as a percentage of income, varies by property type

    Property Value is derived from:

    • Recent sale price (if available)
    • Statistical models using comparable sales
    • AI-powered valuation estimates

    Example Calculation

    For a 100,000 sqft Office Building:

    • Lease Rate: $25.00/sqft/year (market data for Office in this area)
    • Vacancy Rate: 8% (market data for Office in this area)
    • Operating Expense Ratio: 35% (typical for Office properties)
    • Property Value: $15,000,000

    Step 1: Calculate NOI

    NOI = 100,000 × $25.00 × (1 - 0.08) × (1 - 0.35)
    NOI = 100,000 × $25.00 × 0.92 × 0.65
    NOI = $1,495,000/year

    Step 2: Calculate Cap Rate

    Cap Rate = ($1,495,000 / $15,000,000) × 100
    Cap Rate = 9.97%

    Property Type Considerations

    Net Operating Income calculations vary by property type due to different operating expense ratios:

    • Office: Higher expenses (30-40%) for HVAC, utilities, maintenance
    • Retail: Moderate expenses (25-35%) for common area maintenance
    • Industrial/Warehouse: Lower expenses (15-25%) for minimal tenant services
    • Multifamily: Moderate expenses (35-45%) including property management
    • Self-Storage: Lower expenses (25-35%) due to minimal maintenance

    Market lease rates and vacancy rates are specific to each property type and geographic location, reflecting local market conditions.

    Disclaimer

    These calculations are estimates for informational purposes only and should not be used as a substitute for professional financial analysis or appraisal.

    • Cap Rate calculations depend on market data that may change over time
    • Actual operating expenses, lease rates, and vacancy rates may differ from market averages
    • Individual property conditions, lease terms, and tenant quality significantly impact actual NOI
    • Property value estimates are approximations and not official appraisals
    • Cap rates vary widely by market, property condition, and investment risk profile

    Professional Guidance Recommended: Before making any investment or financial decisions, consult with licensed appraisers, commercial real estate brokers, and financial advisors who can evaluate your specific property and circumstances.
    By using this feature, you acknowledge that Realmo is not responsible for investment decisions or actions taken based on these estimates.

    Cap approach

    Capitalization Method calculates value based on estimated net operating income (NOI) and applying a market-based capitalization rate (cap rate), we estimate what a typical investor might be willing to pay for it.

    Comparable approach

    Comparable estimate is based on recent sales of similar nearby properties, adjusted for factors like size, condition, and location.

    Relative

    Relative property class coefficient uses factors that account for typical price differences between various asset types (e.g., retail vs. industrial) to provide a more accurate market-aligned estimate.

    Geo

    Comparable Sales Method, enhanced by Geo coefficients — location-based adjustment factors that reflect differences in price levels across neighborhoods, cities, or regions ensuring a more accurate, market-sensitive valuation.

    Stat Estimate

    This method estimates value based on actual market adjusted recent (~5 years) sales of comparable properties around by location and property type.

    • Ranges - area data calculated by industry standard IQR Outlier Removal Method
    • Range-from: 75% of all similar sales ($/sqft) are above this value
    • Range-to: 75% of all similar sales ($/sqft) are below this value
    AI Estimate

    This method estimates value based on AI market estimation of comparable properties around by location and property type.

    • Ranges - area data calculated by industry standard IQR Outlier Removal Method
    • Range-from: 75% of all estimations ($/sqft) are above this value
    • Range-to: 75% of all estimations ($/sqft) are below this value
    Alternative use

    Estimate considers the property’s potential value if used for a different purpose-based on zoning, demand, and market feasibility.

    More about this property
    21660 Copley Dr Diamond Bar, CA 91765
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    We can help!
    Contact for Pricing
    Please call us for current price
    and status of this listing Sean Kern
    Sean Kern
    (909) 942-4691
    Learn more
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