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For sale
    • $2,798,000

    321 Castle Crest Rd, Alamo, CA 94507

    5beds
    3,962sqft
    : 
    $19,187/mo
    Get pre-qualified
    Residential, Single Family Residence
    Built in 1991
    1.17 Acres Lot
    $2,669,400 Zestimate®
    $706/sqft
    $-- HOA

    What's special

    Floating maple stair treadsQuartzite islandExpansive windowsMaple hardwoodExpansive fleetwood windowsFormal diningEntry pivot door
    A modern retreat with direct Mt. Diablo views, expansive windows, elevated materials, energy efficiency, and everyday livability. The entry pivot door sets the tone immediately, opening to the huge view-framing window capturing the mountain through floating maple stair treads. A striking architectural moment. The main living level centers around an open gathering area with soaring vaulted wood ceilings, stunning kitchen representing sea, earth and sky, formal dining, exposed beams, expansive Fleetwood windows, and access to an outdoor seating area overlooking Mt. Diablo. The kitchen anchors the home with quartzite island, Wolf/Sub-Zero appliances, steam oven, custom hood and walk-in pantry. A refined mix of stone, glass, metal, and natural warmth. Extensively reimodeled with an emphasis on architecture, systems, and symmetry, the home includes steel beams, double shear, owned solar, updated HVAC, maple hardwood, modern railings, upgraded lighting, and a media room / 5th bedroom. Set on 1.17 acres on one of Alamo’s friendliest streets, the flexible floor plan offers two ensuite bedrooms with one on the main level, two living areas, and easy access to two 2-car garages (total 4). Close to downtown Walnut Creek, BART, trails, the Iron Horse Trail, and 680. Open Sat 1-4pm Sun 1-4pm
    16 days
    |
    1,864
    |
    98
    |

    Zillow last checked:

    Listing updated:

    Listed by:

    Carolyn Gwynn DRE #01888136 925-336-7525,

    Compass

    Source: CCAR,MLS#: 41141765MLS Logo

      Facts & features

      Interior

      Bedrooms & bathrooms
      • Bedrooms: 5
      • Bathrooms: 5
      • Full bathrooms: 4
      • Partial bathrooms: 1
      Rooms
      • Room types: 3 Bedrooms, 3 Baths, Main Entry, 1 Bedroom, 0.5 Bath, Primary Bedrm Suite - 1, Family Room
      Kitchen
      • Features: Stone Counters, Dishwasher, Double Oven, Eat-in Kitchen, Disposal, Gas Range/Cooktop, Kitchen Island, Microwave, Oven Built-in, Pantry, Refrigerator, Updated Kitchen
      Heating
      • Zoned
      Cooling
      • Central Air
      Appliances
      • Included: Dishwasher, Double Oven, Gas Range, Microwave, Oven, Refrigerator, Dryer, Washer, Gas Water Heater
      • Laundry: Laundry Room
      Features
      • Formal Dining Room, Pantry, Updated Kitchen
      • Flooring: Hardwood
      • Windows: Double Pane Windows
      • Has fireplace: No
      • Fireplace features: None
      Interior area
      • Total structure area: 3,962
      • Total interior livable area: 3,962 sqft

      Property

      Parking
      • Total spaces: 4
      • Parking features: Attached, Garage Door Opener
      • Attached garage spaces: 4
      Features
      • Levels: Two
      • Stories: 2
      • Pool features: None
      • Has view: Yes
      • View description: Las Trampas Foothills, Mountain(s), Panoramic
      Lot
      • Size: 1.17 Acres
      • Features: Cul-De-Sac, Sloped Down, Front Yard
      Details
      • Parcel number: 1883920181
      • Special conditions: Standard

      Construction

      Type & style
      • Home type: SingleFamily
      • Architectural style: Contemporary
      • Property subtype: Residential, Single Family Residence
      Materials
      • Wood Siding
      • Foundation: Raised
      • Roof: Composition
      Condition
      • Existing
      • New construction: No
      • Year built: 1991

      Utilities & green energy

      • Electric: Photovoltaics Seller Owned
      • Sewer: Public Sewer
      • Water: Public

      Community & HOA

      Community
      • Subdivision: West Side Alamo
      HOA
      • Has HOA: No
      Location
      • Region: Alamo

      Financial & listing details

      • Price per square foot: $706/sqft
      • Tax assessed value: $1,667,333
      • Annual tax amount: $19,389
      • Date on market: 7/15/2026

        Estimated market value

        $2,669,400

        $2.54M - $2.80M

        $7,519/mo

        Price history

        DateEventPrice
        7/16/2026Listed for sale$2,798,000+89.7%$706/sqft
        Source: CCAR #41141765 Report a problem
        7/27/2020Sold$1,475,000-6.3%$372/sqft
        Source: CCAR #40903940 Report a problem
        6/25/2020Pending sale$1,575,000$398/sqft
        Source: Better Homes Realty #40903940 Report a problem
        6/3/2020Price change$1,575,000-4.5%$398/sqft
        Source: Better Homes Realty #40903940 Report a problem
        5/7/2020Price change$1,649,8000%$416/sqft
        Source: Better Homes Realty #40903940 Report a problem
        2/5/2020Price change$1,650,000-5.7%$416/sqft
        Source: Owner Report a problem
        1/22/2020Price change$1,750,000-5.4%$442/sqft
        Source: Owner Report a problem
        1/10/2020Listed for sale$1,850,000+12.1%$467/sqft
        Source: Owner Report a problem
        11/22/2019Listing removed$1,650,000$416/sqft
        Source: Rose Team #40853537 Report a problem
        11/12/2019Price change$1,650,000+8.2%$416/sqft
        Source: Rose Team #40853537 Report a problem
        9/14/2019Price change$1,525,000-2.9%$385/sqft
        Source: Rose Team #40853537 Report a problem
        7/18/2019Price change$1,570,000-1.9%$396/sqft
        Source: Rose Team #40853537 Report a problem
        6/27/2019Price change$1,600,000-1.5%$404/sqft
        Source: Rose Team #40853537 Report a problem
        6/7/2019Price change$1,625,000-3%$410/sqft
        Source: Rose Team #40853537 Report a problem
        5/3/2019Price change$1,675,000-2.9%$423/sqft
        Source: Rose Team #40853537 Report a problem
        4/10/2019Price change$1,725,000-1.4%$435/sqft
        Source: Rose Team #40853537 Report a problem
        3/20/2019Price change$1,749,000-2.6%$441/sqft
        Source: Rose Team #40853537 Report a problem
        2/8/2019Price change$1,795,000-3%$453/sqft
        Source: Owner Report a problem
        9/25/2018Listed for sale$1,850,000$467/sqft
        Source: Owner Report a problem

        Public tax history

        YearProperty taxesTax assessment
        2025$19,389 +1.4%$1,667,333 +2%
        2024$19,129 +2.4%$1,634,641 +2%
        2023$18,675 +6.5%$1,602,590 +6.5%
        2022$17,527 +2.7%$1,504,500 +2%
        2021$17,068 +42.8%$1,475,000 +46.8%
        2020$11,955 +1.1%$1,004,851 +2%
        2019$11,823 +3.5%$985,149 +2%
        2018$11,424 +1.9%$965,833 +2%
        2017$11,216 +1.9%$946,896 +2%
        2016$11,008 +3.5%$928,331 +1.5%
        2015$10,637 $914,388 +2%
        2014$10,637 $896,477 +0.5%
        2013-- $892,427 +2%
        2012-- $874,929 +2%
        2011-- $857,774 +0.8%
        2010-- $851,364 -0.2%
        2009-- $853,387 +2%
        2008-- $836,655 +2%
        2007-- $820,251 +2%
        2006-- $804,169 +2%
        2005-- $788,402 +2%
        2004-- $772,944 +1.9%
        2003-- $758,779 +2%
        2002-- $743,902 +2%
        2001-- $729,316
        Find assessor info on the county website

        Monthly payment

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        Explore the cost of this home by adjusting the details. Changes won't be saved.
        All calculations are estimates and provided by Zillow, Inc. for informational purposes only. Actual amounts may vary.
        HOA fees may include property taxes on listings classified as Co-Ops. Contact the listing agent and/or owner for fee details.
        Mortgage interest rates are dependent on a number of factors, including credit score, down payment, and repayment length. Interest rate data provided by Zillow Group Marketplace, Inc. as of 1/1/1970 from various mortgage lenders with which we have lead or other similar arrangements; the Estimated Payment is an average of those rates.
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        Climate risks

        Neighborhood: 94507

        Getting around

        1 / 100
        Car-Dependent
        16 / 100
        Somewhat Bikeable

        Nearby schools

        GreatSchools rating

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