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Sold for $25,000,000
  • $25,000,000

    40 Firethorn Way, Portola Valley, CA 94028

    6beds
    10,556sqft
    SingleFamily
    Built in 2020
    6.9 Acres Lot
    $-- Zestimate®
    $2,368/sqft
    $23,994 Estimated rent

    Home value

    Not available

    Estimated sales range

    Not available

    $23,994/mo

    Zestimate® history
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    $157,224/mo

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    What's special

    Spectacular, nearly completed 10,556-sqft home on 6.9 acres in Portola Valley designed by Swatt ; Miers Architects to maximize panoramic views of the southern hills. Glass, concrete, wood, and steel create a striking and luxurious home with three levels, accessible by an exquisite floating staircase or elevator. The ground floor living room showcases a double-height ceiling, fireplace with stone surround, and walls of glass that open to an outdoor terrace. The upper level contains the gracious primary suite and three additional bedrooms. Natural light fills the lower level which offers a media room, game room, bar, and au pair suite with private entrance. Multiple patios and terraces with resort-like amenities include a vanishing-edge swimming pool, spa, and well-appointed gym. The 4-car garage features a roof-top sun deck. Construction is underway and ready for buyer to select finishes and make it their own. Adjoining 3.5-acre lot with access from Los Trancos Rd also available.

    Facts & features

    Interior

    Bedrooms & bathrooms
    • Bedrooms: 6
    • Bathrooms: 9
    • Full bathrooms: 7
    • 1/2 bathrooms: 2
    Heating
    • Radiant
    Cooling
    • Central
    Features
    • Basement: Partially finished
    • Has fireplace: Yes
    Interior area
    • Total interior livable area: 10,556 sqft

    Property

    Parking
    • Parking features: Garage - Attached
    Lot
    • Size: 6.9 Acres
    Details
    • Parcel number: 079080030

    Construction

    Type & style
    • Home type: SingleFamily
    Condition
    • Year built: 2020

    Utilities & green energy

    • Utilities for property: Public Utilities

    Community & HOA

    Location
    • Region: Portola Valley

    Financial & listing details

    • Price per square foot: $2,368/sqft
    • Tax assessed value: $7,168,005
    • Annual tax amount: $78,749

    Price history

    DateEventPrice
    4/16/2025Sold$25,000,000-41.7%$2,368/sqft
    Source: Agent Provided Report a problem
    5/31/2023Listing removed--
    Source: MLSListings Inc #ML81926255 Report a problem
    4/28/2023Listed for sale$42,900,000+49.2%$4,064/sqft
    Source: MLSListings Inc #ML81926255 Report a problem
    3/12/2021Listing removed--
    Source: MLSListings Inc Report a problem
    11/14/2020Listed for sale$28,750,000+317.4%$2,724/sqft
    Source: Golden Gate Sotheby's International Realty #ML81820284 Report a problem
    12/7/2015Listing removed$6,888,000$653/sqft
    Source: Intero Real Estate Services-Woodside #81498771 Report a problem
    8/7/2015Listed for sale$6,888,000-5%$653/sqft
    Source: Intero Real Estate Services-Woodside #81498771 Report a problem
    11/27/2014Listing removed$7,250,000$687/sqft
    Source: Coldwell Banker Residential Brokerage - Burlingame #81147621 Report a problem
    11/17/2011Listed for sale$7,250,000$687/sqft
    Source: Coldwell Banker Residential Brokerage - Burlingame #81147621 Report a problem
    9/17/2011Listing removed$7,250,000$687/sqft
    Source: Cowperthwaite Report a problem
    5/21/2011Listed for sale$7,250,000$687/sqft
    Source: Cowperthwaite Report a problem

    Public tax history

    YearProperty taxesTax assessment
    2022$78,749 +6.9%$7,168,005 +7.6%
    2021$73,677 +29.6%$6,660,103 +30.6%
    2020$56,852 -29.1%$5,097,859 -28.7%
    2019$80,195 +5.2%$7,149,628 +2%
    2018$76,209 +1.2%$7,009,440 +2%
    2017$75,311 +370%$6,872,000 +385.4%
    2016$16,024 +3.1%$1,415,796 +1.5%
    2015$15,540 $1,394,532 +2%
    2014$15,540 $1,367,218 +0.5%
    2013-- $1,361,041 +2%
    2012-- $1,334,356
    2011-- $1,334,356 +2.8%
    2010-- $1,298,422 -0.2%
    2009-- $1,301,510 +2%
    2008-- $1,275,992 +61.7%
    2007-- $788,973 +2%
    2006-- $773,504 +1%
    2005-- $765,504 +4%
    2004-- $735,780 +1.9%
    2003-- $722,296 +2%
    2002-- $708,134 +2%
    2001-- $694,250 +2%
    2000-- $680,638
    Find assessor info on the county website

    Neighborhood: 94028

    Nearby schools

    GreatSchools rating
    Schools provided by the listing agent
    • Elementary: Ormondale Elementary

    Source: The MLS. This data may not be complete. We recommend contacting the local school district to confirm school assignments for this home.