Opportunity knocks! 9.68 acres. Large Main house plus 2 ADUs. The main house offers 3 bedrooms plus a loft. Soaring ceilings in spacious great room with wood burning stove, ceiling fans, & lots of windows to take in the views. 2 updated bathrooms with gorgeous travertine. Huge primary suite with en suite & 3 closets. Indoor laundry room and 2 more spacious bedrooms. Large Trex deck and incredible sweeping views. 2 car garage, septic recently pumped, new water heater. The ground floor apt under the main house offers 2 bedrooms, 1 bath, and a covered carport. Mobile home offers 1 bedroom and 1 bath. 1000 sq ft detached garage on its own septic. 5 acres of Olive trees, 500 eucalyptus trees, a creek that runs through the corner of the lot, and a 5000 gal water holding tank. Fixer with lots of potential!
Vacant landProperty Type
1984Year Built
9.68 acresLot Size
$169,111Price/Acres
2 car garageParking
Listed by Heather Donovan•DRE #01329100• Compass
Bought with Out Of Area Out•DRE #88888888• OUT OF AREA - NON MEMBER
Source:bridgeMLS, Bay East AOR, or Contra Costa AOR #40986401
Redfin Estimate
$1,636,995
$3,005 since sold in January 2024$15K since September
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 142.2% higher than the average sale price ($676K) of 6 comparable homes.
Beautifully remodeled two house property on big chunk of land, Only 10 min. drive from Brentwood city, Beautiful views of mount Diablo
3 years ago• May not reflect the current state of the home
Bik Badwal
Redfin Associate agent
Fully remodeled house on a farm land, Two separate units with separate entrance, Lower unit has 4 bedrooms and a new bathroom and kitchen, Upper unit has open layout with very high ceiling and large windows, Loft and Master bedroom is on 2nd level,...
Gym area and home theater on 3rd level, Both units have new flooring and light fixtures, Exterior has new siding/roof, New concrete, New decks, House has central heating but split air conditioning units, Two car detached garage, Property has ADU that has been built away from main houses
4 years ago• May not reflect the current state of the home
Bik Badwal
Redfin Associate agent
Sale history for 9875 Deer Valley Rd
Date
Event
Price
Public Records
Jan 5, 2024
Sold
$1,640,000
$330/sq ft
bridgeMLS, Bay East AOR, or Contra Costa AOR #41014425
Jan 20, 2023
Listing Removed
—
Public Records
Jul 12, 2022
Sold
$820,000
$165/sq ft
bridgeMLS, Bay East AOR, or Contra Costa AOR #40986401
Jun 6, 2022
Sold
$820,000
$165/sq ft
May 20, 2022
Pending
—
May 17, 2022
Price Changed
$850,000
$171/sq ft
May 3, 2022
Price Changed
$950,000
$191/sq ft
Apr 29, 2022
Relisted
—
Apr 27, 2022
Pending
—
Apr 22, 2022
Pending
—
Apr 6, 2022
Price Changed
$999,000
$201/sq ft
Mar 27, 2022
Listed
$1,200,000
$241/sq ft
Mar 27, 2022
Listed
$850,000
$171/sq ft
+55
Opportunity knocks! 9.68 acres. Large Main house plus 2 ADUs. The main house offers 3 bedrooms plus a loft. Soaring ceilings in spacious great room with wood burning stove, ceiling fans, & lots of windows to take in the views. 2 updated bathrooms with gorgeous travertine. Huge primary suite with en suite & 3 closets. Indoor laundry room and 2 more spacious bedrooms. Large Trex deck and incredible sweeping views. 2 car garage, septic recently pumped, new water heater. The ground floor apt under the main house offers 2 bedrooms, 1 bath, and a covered carport. Mobile home offers 1 bedroom and 1 bath. 1000 sq ft detached garage on its own septic. 5 acres of Olive trees, 500 eucalyptus trees, a creek that runs through the corner of the lot, and a 5000 gal water holding tank. Fixer with lots of potential!
Public Records
Apr 15, 1980
Sold
$85,000
$17/sq ft
Year
Property tax
Land + Additions
Assessment*
2025
$19,631 (+110.1%)
$1,305,702 + $504,594
$1,810,296
2024
$9,346 (+1.6%)
$1,280,100 + $494,700
$1,774,800
2023
$9,201 (+134.7%)
$494,700 + $341,700
$836,400
2022
$3,921 (+2.6%)
$485,000 + $335,000
$820,000
2021
$3,821 (+0.4%)
$117,719 + $231,451
$349,170
2020
$3,806 (−0.5%)
$115,411 + $226,913
$342,324
2019
$3,826 (+5.2%)
$114,228 + $224,587
$338,815
2018
$3,638 (−0.2%)
$111,989 + $220,184
$332,173
2017
$3,643 (+3.7%)
$107,642 + $211,635
$319,277
2016
$3,512 (+2.8%)
$107,642 + $211,635
$319,277
2015
$3,415 (+0.4%)
$105,532 + $207,486
$313,018
2014
$3,401 (−0.2%)
$101,911 + $200,367
$302,278
2013
$3,409 (+2.2%)
$101,911 + $200,367
$302,278
2012
$3,336 (+1.1%)
$101,451 + $199,462
$300,913
2011
$3,299 (+0.5%)
$99,462 + $195,551
$295,013
2010
$3,281 (−0.2%)
$97,512 + $191,717
$289,229
2009
$3,288 (+3.9%)
$96,784 + $190,285
$287,069
2008
$3,164
$97,014 + $190,738
$287,752
Tax history for 9875 Deer Valley Rd
Year
Property tax
Land + Additions
Assessment*
2025
$19,631 (+110.1%)
$1,305,702 + $504,594
$1,810,296
2024
$9,346 (+1.6%)
$1,280,100 + $494,700
$1,774,800
2023
$9,201 (+134.7%)
$494,700 + $341,700
$836,400
2022
$3,921 (+2.6%)
$485,000 + $335,000
$820,000
2021
$3,821 (+0.4%)
$117,719 + $231,451
$349,170
2020
$3,806 (−0.5%)
$115,411 + $226,913
$342,324
2019
$3,826 (+5.2%)
$114,228 + $224,587
$338,815
2018
$3,638 (−0.2%)
$111,989 + $220,184
$332,173
2017
$3,643 (+3.7%)
$107,642 + $211,635
$319,277
2016
$3,512 (+2.8%)
$107,642 + $211,635
$319,277
2015
$3,415 (+0.4%)
$105,532 + $207,486
$313,018
2014
$3,401 (−0.2%)
$101,911 + $200,367
$302,278
2013
$3,409 (+2.2%)
$101,911 + $200,367
$302,278
2012
$3,336 (+1.1%)
$101,451 + $199,462
$300,913
2011
$3,299 (+0.5%)
$99,462 + $195,551
$295,013
2010
$3,281 (−0.2%)
$97,512 + $191,717
$289,229
2009
$3,288 (+3.9%)
$96,784 + $190,285
$287,069
2008
$3,164
$97,014 + $190,738
$287,752
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Permits
Apr 23, 2025 • Final
Building - residential ess/battery storage
Install a new energy storage system on an existing single-family home.
Battery
Electrical
Apr 19, 2024 • Final
Building/residential/al/alteration
Remodel two kitchens by converting one into a wet bar and renovate three bathrooms. Replace the existing deck perimeter railing, flooring, doors, and baseboards throughout the building. Paint the interior and replace electrical outlets and light switches.
Bathroom
Electrical
Kitchen
Remodel
Permit history is from public records and may be incomplete or inaccurate. Redfin and its agents make no representations about the property condition or permit status. Buyers should independently verify all information.
Property details
Interior
Room Information
# of Rooms: 2
Exterior
Property Information
Living Sq. Ft: 4,974
Ground Floor Sq. Ft: 4,974
Building Sq. Ft: 4,974
# of Stories: 1
Legal Description: T182PM44 PCL A
Lot Information
# of Buildings: 1
Land Sq. Ft: 421,661
Acres: 9.68
Zoning Code: A-2
County Use Description: RURAL RESID 1-10 AC
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: —
Baths: —
Sq. Ft.: 4,974
Stories: 1.0
Lot Size: 9.68 acres
Style: Vacant Land
Year Built: 1984
Year Renovated: 2000
County: Contra Costa County
APN: 0070900469
Home facts updated by county records on Jul 13, 2026
Around this home
Schools
R. Paul Krey Elementary School
Public K-5 • Assigned • 2.2mi
9/10
Adams (J. Douglas) Middle School
Public 6-8 • Assigned • 1.6mi
9/10
Heritage High School
Public 9-12 • Assigned • 1.8mi
9/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Climate risks
1/10 Flood Factor
Minimal risk of a flood reaching the building in the next 30 years
9/10 Fire Factor
50% chance of being in a wildfire in next 30 years
6/10 Heat Factor
7 days above 97° expected this year, 15 days in 30 years
1/10 Wind Factor
Minimal risk of severe winds over next 30 years
9/10 Air Factor
17 unhealthy days expected this year, 18 days in 30 years
Provided by First Street
Historical weather
Brentwood, CA • 94513
Average low and high temperatures (°F)
59
40
64
45
73
50
74
50
83
56
91
60
93
62
95
63
88
63
80
56
64
47
56
44
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun exposure
In this area, properties receive around 12.2 hours in
June and 4.7 hours in December, placing it above the
U.S. average for solar exposure.
12.2 hrs
4.7 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$1.56M – $1.88M
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