2320 Stone Valley Rd is a 4,784 square foot house on a 0.8 acre lot with 5 bedrooms and 5 bathrooms. Based on Redfin's Alamo data, we estimate the home's value is $3,070,458.
Single-familyProperty Type
1977Year Built
0.8 acresLot Size
$642Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$3,070,458
$142K since August
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 2.2% lower than the average sale price ($3.14M) of 6 comparable homes.
As the MLS and public records start to fill up, we'll list the details here.
Year
Property tax
Land + Additions
Assessment*
2025
$8,892 (+2.1%)
$96,809 + $649,016
$745,825
2024
$8,706 (+1.6%)
$94,911 + $636,291
$731,202
2023
$8,566 (+0.8%)
$93,050 + $623,815
$716,865
2022
$8,501 (+2.2%)
$91,226 + $611,584
$702,810
2021
$8,315 (+1.8%)
$89,438 + $599,593
$689,031
2020
$8,166 (+1.1%)
$87,685 + $587,837
$675,522
2019
$8,078 (+3.9%)
$86,786 + $581,810
$668,596
2018
$7,776 (+3.8%)
$85,085 + $570,402
$655,487
2017
$7,489 (+1.4%)
$81,782 + $548,253
$630,035
2016
$7,386 (+1.4%)
$81,782 + $548,253
$630,035
2015
$7,285 (+1.5%)
$80,179 + $537,503
$617,682
2014
$7,179 (+1.3%)
$77,428 + $519,060
$596,488
2013
$7,086 (+3.2%)
$77,428 + $519,060
$596,488
2012
$6,869 (+2.0%)
$77,079 + $516,715
$593,794
2011
$6,733 (+1.4%)
$75,568 + $506,584
$582,152
2010
$6,640 (−0.1%)
$74,087 + $496,651
$570,738
2009
$6,648 (+3.6%)
$73,534 + $492,940
$566,474
2008
$6,416
$73,709 + $494,112
$567,821
Tax history for 2320 Stone Valley Rd
Year
Property tax
Land + Additions
Assessment*
2025
$8,892 (+2.1%)
$96,809 + $649,016
$745,825
2024
$8,706 (+1.6%)
$94,911 + $636,291
$731,202
2023
$8,566 (+0.8%)
$93,050 + $623,815
$716,865
2022
$8,501 (+2.2%)
$91,226 + $611,584
$702,810
2021
$8,315 (+1.8%)
$89,438 + $599,593
$689,031
2020
$8,166 (+1.1%)
$87,685 + $587,837
$675,522
2019
$8,078 (+3.9%)
$86,786 + $581,810
$668,596
2018
$7,776 (+3.8%)
$85,085 + $570,402
$655,487
2017
$7,489 (+1.4%)
$81,782 + $548,253
$630,035
2016
$7,386 (+1.4%)
$81,782 + $548,253
$630,035
2015
$7,285 (+1.5%)
$80,179 + $537,503
$617,682
2014
$7,179 (+1.3%)
$77,428 + $519,060
$596,488
2013
$7,086 (+3.2%)
$77,428 + $519,060
$596,488
2012
$6,869 (+2.0%)
$77,079 + $516,715
$593,794
2011
$6,733 (+1.4%)
$75,568 + $506,584
$582,152
2010
$6,640 (−0.1%)
$74,087 + $496,651
$570,738
2009
$6,648 (+3.6%)
$73,534 + $492,940
$566,474
2008
$6,416
$73,709 + $494,112
$567,821
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Permits
Aug 3, 2021 • Final
Building - residential mechanical
Install a new air conditioning unit in the backyard and replace an existing air conditioning unit in the right side yard. A HERS report is required at the final inspection.
HVAC
Jan 30, 2010 • Final
Building/residential/al/alteration
Perform an interior remodel.
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: 13
Exterior
Property Information
Subdivision Name: SQUIER ACRES 01
Living Sq. Ft: 4,784
Ground Floor Sq. Ft: 3,080
Building Sq. Ft: 4,784
# of Stories: 2
Legal Description: PCL MAP 151 PM 35 PCL B
Parking & Garage Information
Garage/Parking Sq. Ft: 1,200
Lot Information
# of Buildings: 1
Land Sq. Ft: 34,848
Legal Lot Number: 1
Acres: 0.8
Zoning Code: R-15
County Use Description: SINGLE FAMILY
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 5
Baths: 5.0
Sq. Ft.: 4,784
Stories: 2.0
Lot Size: 0.8 acres
Style: Single Family Residential
Year Built: 1977
Year Renovated: 1985
County: Contra Costa County
APN: 1932520313
Home facts updated by county records on Jul 13, 2026
Around this home
Schools
Rancho Romero Elementary School
Public K-5 • Assigned • 1.4mi
9/10
Stone Valley Middle School
Public 6-8 • Assigned • 0.9mi
10/10
Monte Vista High School
Public 9-12 • Assigned • 1.4mi
10/10
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
4/10 Fire Factor
2% chance of being in a wildfire in next 30 years
3/10 Heat Factor
7 days above 95° 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, 17 days in 30 years
Provided by First Street
Historical weather
Alamo, CA • 94507
Average low and high temperatures (°F)
58
39
61
42
68
46
68
47
74
51
80
54
80
55
86
58
83
57
76
53
62
44
56
43
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun exposure
In this area, properties receive around 11.5 hours in
June and 4.9 hours in December, placing it above the
U.S. average for solar exposure.
11.5 hrs
4.9 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$2.92M – $3.53M
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