NOT LISTED FOR SALE

7 County Oak Ln Alamo, CA 94507

Alamo Area

Estimated Value: $21,571,006

11 Beds
22 Baths
21,241 Sq Ft
$1,016/Sq Ft Est. Value

About This Home

This home is located at 7 County Oak Ln, Alamo, CA 94507 and is currently estimated at $21,571,006, approximately $1,015 per square foot. 7 County Oak Ln is a home located in Contra Costa County with nearby schools including Green Valley Elementary School, Los Cerros Middle School, and Monte Vista High School.

Range of Values:

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Value Increase
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Percent Increase
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Adjusted for Inflation
Collateral Analytics

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ICE

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First American

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Quantarium

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Average Value
Not Available
List Price
Sold Price
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Ownership History

We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.

Date Name Owned For Owner Type

Purchase Details

Closed on
Feb 7, 2026
Sold by
Almendral Diversified Investments Lp
Bought by
Current Estimated Value
$21,571,006

Purchase Details

Closed on
Aug 18, 2020
Sold by
The Duffield Family Foundation
Bought by
Almendral Diversified Investments Lp

Purchase Details

Closed on
Sep 28, 2015
Sold by
Lake Tahoe Land Company Llc
Bought by
The Duffield Family Foundation

Purchase Details

Closed on
Dec 2, 2008
Sold by
East Bay Regionalpark District
Bought by
Lake Tahoe Land Company Llc

Purchase Details

Closed on
Mar 8, 2005
Sold by
Biestman Mark S and Biestman Karen W
Bought by
Lake Tahoe Land Co Llc

Purchase Details

Closed on
Jun 22, 2000
Sold by
Hoffman Mark B & Susan A Tre
Bought by
Biestman Mark S and Biestman Karen W

Home Financials for this Owner

Home Financials are based on the most recent Mortgage that was taken out on this home.
Original Mortgage
$1,000,000
Interest Rate
7.92%
Mortgage Type
Purchase Money Mortgage
Source: Public Records

Home Values in the Area

Source: Public Records

Average Home Value in this Area

Source: Public Records

Agents Specializing in Alamo, CA

  • Matt Rubenstein Real Estate Agent - Compass

    Matt Rubenstein

    Compass

    (707) 749-5424

    74 Total Sales

    1 in Alamo

    $1,060,000 Price

    Matt Rubenstein
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  • Marc Guay Real Estate Agent

    Marc Guay

    (628) 230-5948

    38 Total Sales

    1 in Alamo

    $2,270,000 Price

    Marc Guay
     Section Image
  • Rita Dhillon Real Estate Agent - Compass

    Rita Dhillon

    Compass

    (925) 306-1395

    79 Total Sales

    2 in Alamo

    $2,380,000 Price Range

    Rita Dhillon
     Section Image
  • Kelly Crawford Real Estate Agent - Vanguard Properties

    Kelly Crawford

    Vanguard Properties

    (925) 396-7158

    216 Total Sales

    3 in Alamo

    $2.5M - $3.5M Price Range

    Kelly Crawford
     Section Image
  • Tim Steffen Real Estate Agent - Better Homes Realty

    Tim Steffen

    Better Homes Realty

    (925) 940-6796

    31 Total Sales

    1 in Alamo

    $1,185,000 Price

    Tim Steffen
     Section Image
  • Lori Olson Real Estate Agent - Compass

    Lori Olson

    Compass

    (650) 449-4827

    99 Total Sales

    1 in Alamo

    $1,585,000 Price

    Lori Olson
     Section Image
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Purchase History

We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.

Date Buyer Sale Price Title Company
-- None Listed On Document
Almendral Diversified Investments Lp $19,000,000 Fidelity National Title Co
The Duffield Family Foundation -- None Available
Lake Tahoe Land Company Llc -- Fidelity National Title
Lake Tahoe Land Co Llc -- Fidelity National Title
Biestman Mark S $6,000,000 Chicago Title Co
Source: Public Records

Mortgage History

We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.

Date Status Borrower Loan Amount
Previous Owner --
Previous Owner Biestman Mark S $1,200,000
Previous Owner Biestman Mark S $100,000
Previous Owner Biestman Mark S $1,000,000
Previous Owner Biestman Mark S $1,000,000
Previous Owner Hoffman Mark Bruce $1,100,000
Source: Public Records

Tax History

We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.

Year Tax Paid Tax Assessment Tax Assessment Total Assessment is a certain percentage of the fair market value that is determined by local assessors to be the total taxable value of land and additions on the property. Land Improvement
2026 $223,977 $20,977,532 $6,955,708 $14,021,824
2025 $223,977 $20,566,209 $6,819,322 $13,746,887
2024 $216,365 $20,162,951 $6,685,610 $13,477,341
2023 $216,365 $19,767,600 $6,554,520 $13,213,080
2022 $215,092 $19,380,000 $6,426,000 $12,954,000
2021 $210,637 $19,000,000 $6,300,000 $12,700,000
2019 $297,267 $26,530,200 $9,550,872 $16,979,328
2018 $286,190 $26,010,000 $9,363,600 $16,646,400
2017 $275,942 $25,500,000 $9,180,000 $16,320,000
2016 $273,316 $25,000,000 $9,000,000 $16,000,000
2015 $219,900 $20,000,000 $6,000,000 $14,000,000
2014 $219,900 $23,000,000 $7,000,000 $16,000,000
Source: Public Records

Map

California Contra Costa County Alamo 94507

7 County Oak Ln, Alamo, CA

Disclaimer: Certain information contained herein is derived from information provided by parties other than Homes.com. All information provided is deemed reliable, but is not guaranteed to be accurate and should be independently verified.

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