Add Listing
    Property Lookup
    • For Sale
    • For Lease
    • Recently Sold
    • Property Lookup
    • Brokers
    121 Sand Crk Rd Brentwood, CA 94513-7389
    Back to Search
    Property profile & analytics

    121 Sand Crk Rd, Brentwood, CA 94513-7389

    View on Map
    • Office buildings
    • 11,802 SF
    • 0.39 lot acres
    Off-Market
    Property ID
    US09-2101985
    The Realmo ID is a unique identifier assigned to every property, incorporating country codes and precise geo-coordinates for 300x300-foot land blocks. It enables standardized data collection and seamless integration of disparate sources such as ownership, tax, title data and physical specifications. By aggregating current and historical records, the Realmo ID powers advanced analytics and delivers deep, verifiable insights for real estate professionals.
    Value Estimations
    $3,645,000
    Show details
    Cap Rate Potential
    Location Intelligence

    Current Use by Public Records

    • Office buildings

    Property Details for 121 Sand Crk Rd

    Year built
    2003
    Lot size
    0.39 lot acres
    Property type
    Office buildings
    APN
    016-110-038-3
    APU
    161100383

    Sales History

    Date Price Buyer Seller Deed Type Mortgage
    Mar 17, 2026 — James L Edwards James L Edwards Deed · related —
    Sep 7, 2018 — M Phillip Cardoza — Deed · related $1.2M · Community Bk/bay
    Jun 27, 2016 — Edwards,james L Trust Edwards,james JR Quit Claim Deed · related —
    Oct 29, 2013 — Harvey Rosenthal Harvey Rosenthal Intrafamily Transfer · related $1.5M · Western FCU
    Oct 22, 2008 — M Phillip Cardoza California Pacific Federal Credit U Grant Deed $1.9M · California Pacific FCU
    — — M Phillip Cardoza — Deed Of Trust · related $1.2M · Community Bk/bay

    Value Estimations

    based on Realmo’s proprietary methodology

    • CAP approach

      CAP Return
      Estimation
      6%
      $4,980,000
      6.5%
      $4,595,000
      7%
      $4,270,000

    • Alternative Use

      Use
      Estimation
      OFFICE BUILDING
      $5,925,000
      Current use
      MEDICAL BUILDING
      $5,375,000
      Change: -9% Conversion: Easy
      NEIGHBORHOOD: SHOPPING CENTER
      $5,000,000
      Change: -16% Conversion: Difficult
      RETAIL STORES
      $4,845,000
      Change: -18% Conversion: Moderate

    Get a detailed, property-specific estimation — fast and free

    Location Insight

    • Map
    • Local Demand
    City
    Brentwood
    County
    Contra Costa
    State
    California
    Longitude
    -121.698
    Latitude
    37.9472
    CBSA code
    41860
    CBSA name
    SAN FRANCISCO-OAKLAND-FREMONT, CA METROPOLITAN STATISTICAL AREA

    Property Tax & Assessments

    Tax date
    Tax Amount
    Assessed Land Value
    Assessed Improvement Value
    Total Assessed Value
    Applied Tax Rate
    Land Market Value
    Improvement Market Value
    Total Market Value
    2024
    $37,045
    $1,359,722
    $1,796,552
    $3,156,274
    -
    $0.00
    $0.00
    $0.00

    Comparable in this City

    • Value Estimation
      $3,635,000
      14,928 SF

      201 Sand Crk Rd

      OFFICE BUILDING
      201 Sand Crk Rd, Brentwood, CA 94513-2124
      View Details
    • Value Estimation
      $1,965,000
      8,644 SF

      813 1st St

      OFFICE BUILDING
      813 1st St, Brentwood, CA 94513-1106
      View Details
    • Value Estimation
      $3,955,000
      14,564 SF

      3361 Walnut Blvd

      OFFICE BUILDING
      3361 Walnut Blvd, Brentwood, CA 94513-4491
      View Details
    • Value Estimation
      $1,850,000
      6,285 SF

      1240 Central Blvd

      OFFICE BUILDING
      1240 Central Blvd, Brentwood, CA 94513-2286
      View Details
    • Value Estimation
      $2,400,000
      8,664 SF

      8395 Brentwood Blvd

      OFFICE BUILDING
      8395 Brentwood Blvd, Brentwood, CA 94513-1390
      View Details
    • Value Estimation
      $4,355,000
      15,092 SF

      1280 Central Blvd

      OFFICE BUILDING
      1280 Central Blvd, Brentwood, CA 94513-2298
      View Details

    Similar Nearby for Sale

    • Contact for pricing
      10,003 SF

      Two-Tenant Net Leased Investment

      Two-tenant net leased investment property in Brentwood, California.
      4510 O'hara Ave, Brentwood, CA 94513
      View Details
    • $749,000
      Pending

      Class A Office Suite

      Spacious first-floor suite suitable for medical or professional office use.
      100 Cortona Way, Brentwood, CA 94513
      View Details
    • Contact for pricing
      2,716 SF

      East Bay Flex Condo

      Flex condo with warehouse, offices, and reception area.
      9020 Brentwood Blvd, Brentwood, CA 94513
      View Details
    • Contact for pricing
      11,370 SF

      Multi-Tenant Medical Office Building

      High-quality medical office building in thriving Brentwood, California.
      1181-1191 Central Blvd, Brentwood, CA 94513
      View Details
    • Contact for pricing

      Shadow Lakes Parking Opportunity

      Existing boat and mobile home parking in Shadow Lakes.
      Presidio Dr, Brentwood, CA 94513
      View Details
    • Contact for pricing

      Agricultural Land with Water Rights

      Land suitable for cherries, almonds, walnuts with water rights.
      000 Hoffman Ln, Brentwood, CA 94513
      View Details

    Similar Nearby for Lease

    • Contact for pricing
      3,454 SF

      Office Space with Dual Access

      Spacious office with natural light, convenient highway access.
      350 John Muir Pkwy, Brentwood, CA 94513
      View Details
    • $800 /Mo
      3,400 SF

      Well-Maintained Office Space Available

      Office space featuring a large open room and private office.
      Sunset Ln, Antioch, CA 94513
      View Details
    • Contact for pricing
      1,272 SF

      Brentwood Office Space Available

      Office space available for rent in Brentwood, California.
      181 Sand Creek Rd, Brentwood, CA 94513
      View Details
    • $775 /Mo
      3,400 SF

      Well-Maintained Office Space Available

      Office space for rent with ample client parking.
      Sunset Ln, Antioch, CA 94513
      View Details
    • Contact for pricing
      1,052 SF

      Retail Space at Lone Tree

      Retail spaces available for lease in Brentwood, California.
      5951 Lone Tree Way, Brentwood, CA 94513
      View Details
    Request Owner's contact information
    Message sent successfully
    Error
    If you are the owner or broker of this property and would like to edit or remove this listing please send a message to web site administrator.
    121 Sand Crk Rd
    Brentwood, CA 94513-7389
    Message sent successfully
    Error
    Email to Your Friends
    Link copied to clipboard
    Separate multiple addresses with a comma
    Message sent successfully
    Error

    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
    Thanks! Your message was sent.
    Error! Your message wasn't sent.
    Please enter your name
    Please enter email
    Please enter the email in the correct format
    Please enter phone
    Please enter the number in the correct format
    Please enter message
    Thank You

    You are Unsubscribed From Notifications

    Thank You for Inquiry
    121 Sand Crk Rd, Brentwood, CA, 94513
    letter with green check mark
    Check your email
    We sent you the
    agent's contact details. yellow underline
    Can't find it?
    Please check your junk/spam folder.
    Google sign-in failed. Please try again or use another login method.
    Sign Up Successful!
    You now have access to more from Realmo!