Google street view image for 15 Seminary Ridge Pl, Clayton, CA 94517

Off market dec 2014 for $1.2M

$1,999,335

Est. refi paymentEst. refi $5,789/mo

•

4 ba

•

3,910

sq ft

15 Seminary Ridge Pl, Clayton, CA 94517

About this home

15 Seminary Ridge Pl is a 3,910 square foot house on a 0.45 acre lot with 4 bedrooms and 4 bathrooms. - it last sold on December 05, 2014 for $1,259,500. Based on Redfin's Clayton data, we estimate the home's value is $1,999,335.

Single-familyProperty Type

2012Year Built

0.45 acresLot Size

$511Est. Price/Sq.Ft.

3 car garageParking

Source:Public Records

Redfin Estimate

$1,999,335

$740K since sold in December 2014$14K since October

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 39.4% higher than the average sale price ($1.43M) of 6 comparable homes.

SOLD OCT 28, 2026
$1,500,000
A
4 beds3 baths3,030 sq ft
110 Forest Hill Dr, Clayton, CA 94517
SOLD SEP 24, 2026
$1,700,000
B
4 beds3 baths3,011 sq ft
4 Pardi Ln, Clayton, CA 94517
SOLD SEP 4, 2026
$1,630,000
C
4 beds2.5 baths3,307 sq ft
1116 Peacock Creek Dr, Clayton, CA 94517
SOLD SEP 4, 2026
$1,460,000
D
5 beds4.5 baths3,615 sq ft
1224 Bridlewood Ct, Clayton, CA 94517
SOLD BY REDFIN SEP 14, 2026
$1,170,000
E
4 beds3 baths2,643 sq ft
242 El Pueblo Pl, Clayton, CA 94517
SOLD AUG 12, 2026
$1,148,000
F
4 beds2.5 baths2,390 sq ft
55 La Honda Ct, Clayton, CA 94517

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Earn from this home

Sell

$1,155,370

Est. take-home

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Refinance

Est. cash available

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Rent

$6,938/mo

Redfin rental estimate

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Market trends in 94517, CA

Last updated October 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-list price

100.7%

0.4% MoM

Median sale price

$1.1M

$3K MoM

Avg. days on market

21d

10 days MoM

Recently sold homes

4 MoM

New listings for sale

$1,499,000
4 beds3 baths3,016 sq ft
24 Promontory Pl, Clayton, CA 94517
$1,550,000
5 beds3 baths2,691 sq ft
109 Mt Trinity Ct, Clayton, CA 94517
$1,175,000
5 beds3.5 baths2,260 sq ft
68 Nottingham Pl, Clayton, CA 94517
OPEN TUE, 10:30AM TO 12:30PM
$849,000
3 beds2 baths1,352 sq ft
1377 El Camino Dr, Clayton, CA 94517
$815,000
3 beds2.5 baths1,939 sq ft
1766 Indian Wls, Clayton, CA 94517
See all

Provided by Redfin

Sale history for 15 Seminary Ridge Pl

Year

Property tax

Land + Additions

Assessment*

2026

$22,909 (+1.9%)

$551,643 + $1,021,363

$1,573,006

2025

$22,484 (+2.3%)

$551,643 + $1,021,363

$1,573,006

2024

$21,971 (+2.1%)

$540,827 + $1,001,337

$1,542,164

2023

$21,516 (+0.9%)

$530,223 + $981,703

$1,511,926

2022

$21,321 (+1.9%)

$519,827 + $962,454

$1,482,281

2021

$20,927 (+1.2%)

$509,635 + $943,583

$1,453,218

2020

$20,686 (+2.0%)

$499,643 + $925,082

$1,424,725

2019

$20,287 (+3.1%)

$494,520 + $915,597

$1,410,117

2018

$19,679 (+4.7%)

$484,824 + $897,645

$1,382,469

2017

$18,794 (+2.7%)

$465,999 + $838,280

$1,304,279

2016

$18,305 (+1.1%)

$465,999 + $838,280

$1,304,279

2015

$18,113 (+14.2%)

$456,862 + $821,844

$1,278,706

2014

$15,867 (+2.5%)

$401,816 + $664,503

$1,066,319

2013

$15,487 (+180.1%)

$401,816 + $664,503

$1,066,319

2012

$5,529 (+165.2%)

$400,000 + $661,500

$1,061,500

2011

$2,085 (+1.1%)

$166,095

2010

$2,062 (+0.5%)

$162,839

2009

$2,052

$161,622

2008

$162,006

Tax history for 15 Seminary Ridge Pl

Year

Property tax

Land + Additions

Assessment*

2026

$22,909 (+1.9%)

$551,643 + $1,021,363

$1,573,006

2025

$22,484 (+2.3%)

$551,643 + $1,021,363

$1,573,006

2024

$21,971 (+2.1%)

$540,827 + $1,001,337

$1,542,164

2023

$21,516 (+0.9%)

$530,223 + $981,703

$1,511,926

2022

$21,321 (+1.9%)

$519,827 + $962,454

$1,482,281

2021

$20,927 (+1.2%)

$509,635 + $943,583

$1,453,218

2020

$20,686 (+2.0%)

$499,643 + $925,082

$1,424,725

2019

$20,287 (+3.1%)

$494,520 + $915,597

$1,410,117

2018

$19,679 (+4.7%)

$484,824 + $897,645

$1,382,469

2017

$18,794 (+2.7%)

$465,999 + $838,280

$1,304,279

2016

$18,305 (+1.1%)

$465,999 + $838,280

$1,304,279

2015

$18,113 (+14.2%)

$456,862 + $821,844

$1,278,706

2014

$15,867 (+2.5%)

$401,816 + $664,503

$1,066,319

2013

$15,487 (+180.1%)

$401,816 + $664,503

$1,066,319

2012

$5,529 (+165.2%)

$400,000 + $661,500

$1,061,500

2011

$2,085 (+1.1%)

$166,095

2010

$2,062 (+0.5%)

$162,839

2009

$2,052

$161,622

2008

$162,006

*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.

Permits

Aug 7, 2017 • Final

Building/residential/mir/miscellaneous residential

Construct a pavilion according to plans. Install a new electrical sub-panel and a gas line for a fireplace. Install a cabinet with a maximum height of thirty-six inches.

Electrical

Gas

Remodel

Feb 17, 2017 • Final

Building/residential/p/pool

Install an above ground spa and include gas line stub outs for a fire pit, fireplace, and barbecue. Structural details must be submitted before construction begins.

Gas

Pool and hot tub

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: 12

Exterior

Pool Information
Has Pool

Property Information
Subdivision Name: DIABLO POINTE SUB 8719
Living Sq. Ft: 3,910
Ground Floor Sq. Ft: 1,830
Building Sq. Ft: 3,910
# of Stories: 2
Legal Description: T8719 L22

Parking & Garage Information
Garage/Parking Sq. Ft: 620

Lot Information
# of Buildings: 1
Land Sq. Ft: 19,602
Legal Lot Number: 22
Acres: 0.45
County Use Description: SINGLE FAMILY

Financial

Assessor Information
Assessment Year: 2026

Public facts

Beds: 4
Baths: 4.0
Sq. Ft.: 3,910
Stories: 2.0
Lot Size: 0.45 acres
Style: Single Family Residential
Year Built: 2012
Year Renovated: 2012
County: Contra Costa County
APN: 1196300089

Home facts updated by county records on Oct 30, 2026

Around this home

Schools

K - 12
Preschool & daycare

Mt. Diablo Elementary School

Public K-5 • Assigned • 1.6mi

9/10

Diablo View Middle School

Public 6-8 • Assigned • 0.6mi

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

29% chance of being in a wildfire in next 30 years

4/10 Heat Factor

10 days above 93° expected this year, 19 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)

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

$1.90M – $2.30M

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24 Promontory Pl, Clayton, CA 94517

Expansive decking • Mature landscaping • Colorful gardens

$1,550,000

5 beds3 baths2,691 sq ft

109 Mt Trinity Ct, Clayton, CA 94517

Backs to open space • Unobstructed views • Pool

$1,175,000

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Updated kitchen • Owned solar • Rv parking

OPEN TUE, 10:30AM TO 12:30PM

$849,000

3 beds2 baths1,352 sq ft

1377 El Camino Dr, Clayton, CA 94517

Expansive backyard • Remodeled kitchen • Large patio

$815,000

3 beds2.5 baths1,939 sq ft

1766 Indian Wls, Clayton, CA 94517

Oakhurst golf course • Extensive deck • Local amenities

Home values near 15 Seminary Ridge Pl

Data from public records.

Address	Redfin Estimate
26 Seminary Ridge Pl, Clayton, CA 4 Beds \| 4 Baths \| 3910 Sq. Ft.	$1,816,097
10 Seminary Ridge Pl, Clayton, CA 5 Beds \| 4 Baths \| 3691 Sq. Ft.	$1,595,605
19 Seminary Ridge Pl, Clayton, CA 4 Beds \| 4 Baths \| 3834 Sq. Ft.	$1,894,079
3 Seminary Ridge Pl, Clayton, CA 4 Beds \| 4 Baths \| 3757 Sq. Ft.	$1,726,335
9 Seminary Ridge Pl, Clayton, CA 5 Beds \| 4 Baths \| 3691 Sq. Ft.	$1,732,592
38 Petar Ct, Clayton, CA 4 Beds \| 3 Baths \| 2032 Sq. Ft.	$1,028,279
51 Petar Ct, Clayton, CA 4 Beds \| 3 Baths \| 2324 Sq. Ft.	$1,081,156

Address	Redfin Estimate
18 Seminary Ridge Pl, Clayton, CA 5 Beds \| 5 Baths \| 8300 Sq. Ft.	$2,045,546
14 Seminary Ridge Pl, Clayton, CA 4 Beds \| 4 Baths \| 4150 Sq. Ft.	$2,002,161
6 Seminary Ridge Pl, Clayton, CA 5 Beds \| 4 Baths \| 3691 Sq. Ft.	$1,617,611
5 Seminary Ridge Pl, Clayton, CA 3 Beds \| 3 Baths \| 3301 Sq. Ft.	$1,772,379
14 Rialto Dr, Clayton, CA 3 Beds \| 3 Baths \| 2324 Sq. Ft.	$1,091,869
44 Petar Ct, Clayton, CA 3 Beds \| 2 Baths \| 1768 Sq. Ft.	$1,093,820
26 Rialto Dr, Clayton, CA 4 Beds \| 3 Baths \| 2010 Sq. Ft.	$806,061

Address	Redfin Estimate
22 Seminary Ridge Pl, Clayton, CA 4 Beds \| 4 Baths \| 3910 Sq. Ft.	$1,857,453
23 Seminary Ridge Pl, Clayton, CA 5 Beds \| 4.5 Baths \| 3910 Sq. Ft.	$1,920,296
2 Seminary Ridge Pl, Clayton, CA 4 Beds \| 3 Baths \| 3757 Sq. Ft.	$1,584,620
27 Seminary Ridge Pl, Clayton, CA 4 Beds \| 4 Baths \| 4150 Sq. Ft.	$2,023,287
8 Rialto Dr, Clayton, CA 4 Beds \| 2.5 Baths \| 2032 Sq. Ft.	$1,252,971
20 Rialto Dr, Clayton, CA 4 Beds \| 3 Baths \| 2391 Sq. Ft.	$1,065,636
21 Rialto Dr, Clayton, CA 3 Beds \| 3 Baths \| 2324 Sq. Ft.	$1,092,481

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GreatSchools Ratings provided by GreatSchools.org.

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About this home

Redfin Estimate

Earn from this home

Market trends in 94517, CA

Sale history for 15 Seminary Ridge Pl

Tax history for 15 Seminary Ridge Pl

Permits

Property details

Around this home

Schools

Lifestyle

Climate risks

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 94517

Home values near 15 Seminary Ridge Pl

More real estate resources