27 Seminary Ridge Pl is a 4,150 square foot house on a 2.21 acre lot with 4 bedrooms and 4 bathrooms. Based on Redfin's Clayton data, we estimate the home's value is $2,021,138.
Single-familyProperty Type
2012Year Built
2.21 acresLot Size
$487Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$2,021,138
$32K since August
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 46.9% higher than the average sale price ($1.38M) 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
$20,541 (+2.3%)
$628,023 + $770,333
$1,398,356
2024
$20,071 (+2.2%)
$615,709 + $755,229
$1,370,938
2023
$19,642 (+0.9%)
$603,637 + $740,421
$1,344,058
2022
$19,463 (+1.9%)
$591,801 + $725,903
$1,317,704
2021
$19,107 (+1.2%)
$580,198 + $711,670
$1,291,868
2020
$18,872 (+2.0%)
$568,822 + $697,716
$1,266,538
2019
$18,494 (+3.0%)
$562,990 + $690,562
$1,253,552
2018
$17,948 (+3.2%)
$551,951 + $677,022
$1,228,973
2017
$17,385 (+2.7%)
$530,519 + $650,734
$1,181,253
2016
$16,924 (+1.1%)
$530,519 + $650,734
$1,181,253
2015
$16,736 (+1.6%)
$520,117 + $637,975
$1,158,092
2014
$16,475 (+5.9%)
$502,270 + $616,084
$1,118,354
2013
$15,564 (+171.7%)
$502,270 + $616,084
$1,118,354
2012
$5,728
$500,000 + $566,300
$1,066,300
Tax history for 27 Seminary Ridge Pl
Year
Property tax
Land + Additions
Assessment*
2025
$20,541 (+2.3%)
$628,023 + $770,333
$1,398,356
2024
$20,071 (+2.2%)
$615,709 + $755,229
$1,370,938
2023
$19,642 (+0.9%)
$603,637 + $740,421
$1,344,058
2022
$19,463 (+1.9%)
$591,801 + $725,903
$1,317,704
2021
$19,107 (+1.2%)
$580,198 + $711,670
$1,291,868
2020
$18,872 (+2.0%)
$568,822 + $697,716
$1,266,538
2019
$18,494 (+3.0%)
$562,990 + $690,562
$1,253,552
2018
$17,948 (+3.2%)
$551,951 + $677,022
$1,228,973
2017
$17,385 (+2.7%)
$530,519 + $650,734
$1,181,253
2016
$16,924 (+1.1%)
$530,519 + $650,734
$1,181,253
2015
$16,736 (+1.6%)
$520,117 + $637,975
$1,158,092
2014
$16,475 (+5.9%)
$502,270 + $616,084
$1,118,354
2013
$15,564 (+171.7%)
$502,270 + $616,084
$1,118,354
2012
$5,728
$500,000 + $566,300
$1,066,300
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Permits
Oct 10, 2024 • Final
Building - residential solar photovoltaic
Install a solar photovoltaic system with a powerwall energy storage system.
Battery
Electrical
Solar
Aug 29, 2013 • Final
Building - residential solar photovoltaic
Install photovoltaic solar panels on the roof of a residential building.
Electrical
Solar
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: 11
Exterior
Pool Information
Has Pool
Property Information
Subdivision Name: SUBDIVISION 8719
Living Sq. Ft: 4,150
Ground Floor Sq. Ft: 2,100
Building Sq. Ft: 4,150
# of Stories: 2
Legal Description: T8719 L1 & POR L2
Parking & Garage Information
Garage/Parking Sq. Ft: 702
Lot Information
# of Buildings: 1
Land Sq. Ft: 96,268
Legal Lot Number: 1
Acres: 2.21
County Use Description: SINGLE FAMILY
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 4
Baths: 4.0
Sq. Ft.: 4,150
Stories: 2.0
Lot Size: 2.21 acres
Style: Single Family Residential
Year Built: 2012
Year Renovated: 2012
County: Contra Costa County
APN: 1196300121
Home facts updated by county records on Jul 13, 2026
Around this home
Schools
Mt. Diablo Elementary School
Public K-5 • Assigned • 1.7mi
9/10
Diablo View Middle School
Public 6-8 • Assigned • 0.7mi
9/10
Northgate High School
Public 9-12 • Assigned • 4.9mi
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
8/10 Fire Factor
31% chance of being in a wildfire in next 30 years
4/10 Heat Factor
10 days above 93° expected this year, 20 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
Clayton, CA • 94517
Average low and high temperatures (°F)
60
40
64
43
72
47
72
48
80
52
85
55
85
56
92
59
86
58
79
54
64
46
57
44
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun exposure
In this area, properties receive around 11.8 hours in
June and 4.8 hours in December, placing it above the
U.S. average for solar exposure.
11.8 hrs
4.8 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$1.92M – $2.33M
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