Set behind a private gated entrance along the scenic Marsh Creek corridor, this 14.6-acre ranch estate carries a Clayton address but sits at the crossroads of Clayton and Brentwood, roughly 15 minutes from both downtowns, with easy access to shopping, dining, and commute corridors in either direction. The property is built for those who want land with real purpose. Usable acreage supports horses, livestock, or hobby farming, while rolling hillside terrain frames sweeping views and delivers the kind of natural privacy subdivisions simply cannot replicate. The barn is ready for horses or animals of any kind, with equestrian trail access to Round Valley Regional Park right outside your gate, complemented by a detached garage and storage shed. Inside the main house, 3 bedrooms, 3 bathrooms, and a flexible 4th room ideal as a second primary suite welcome you with rich acacia wood floors, soaring ceilings, a coffered formal dining room, and an open-concept kitchen and family room wrapped in custom cabinetry. Solar panels offset the cost of running a property this size. A brand new approximately 1,200 sq ft ADU, 2BD/1.5BA, full kitchen, laundry hookups, never occupied, offers rental income or multigenerational living that's rare at any price. As the day winds down, this property reveals another side of itself. Soft exterior lighting illuminates brand new retaining walls, the hills go quiet, and the wildlife that calls this land home, deer, wild turkeys, and songbirds, remind you exactly why you made the move. This is the kind of stillness that's nearly impossible to find. Acreage · Horse property · Equestrian · Barn · ADU · Gated · Solar · Mt. Diablo views · Round Valley trail access · Clayton CA · Brentwood CA · Contra Costa County · East Bay ranch
Single-familyProperty Type
2002Year Built
14.58 acresLot Size
$595Price/Sq.Ft.
2 car garageParking
Listed by Anthony Arsondi•DRE #01739552• Keller Williams Tri-Valley
bridgeMLS, Bay East AOR, or Contra Costa AOR #41137217
Oct 11, 2026
Price Changed
$1,799,000
$595/sq ft
Jul 14, 2026
Price Changed
$1,899,000
$628/sq ft
Jun 4, 2026
Listed
$1,999,988
$661/sq ft
bridgeMLS, Bay East AOR, or Contra Costa AOR #41081857
Mar 27, 2025
Listing Removed
—
bridgeMLS, Bay East AOR, or Contra Costa AOR #41078580
Dec 8, 2024
Listing Removed
—
bridgeMLS, Bay East AOR, or Contra Costa AOR #40911192
Nov 13, 2020
Sold
$1,150,000
$380/sq ft
Aug 9, 2020
Pending
—
Jul 24, 2020
Price Changed
$1,179,000
$390/sq ft
Jul 6, 2020
Listed
$1,212,000
$401/sq ft
bridgeMLS, Bay East AOR, or Contra Costa AOR #40647985
Nov 4, 2014
Sold
$625,000
$207/sq ft
May 19, 2014
Price Changed
$699,000
$231/sq ft
May 19, 2014
Pending
—
Apr 27, 2014
Price Changed
$750,000
$248/sq ft
Mar 4, 2014
Listed
$799,000
$264/sq ft
Year
Property tax
Land + Additions
Assessment*
2025
$14,284 (+1.6%)
$876,769 + $449,209
$1,325,978
2024
$14,056
$859,578 + $440,401
$1,299,979
Public record
Public record
Permits
Beds
—
Baths
—
Stories
1
Lot width
—
Lot depth
—
Lot size
14.58 Acres
Year renovated
2002
Finished Sq. Ft.
3,025
Unfinished Sq. Ft.
—
Total Sq. Ft.
3,025
Year built
2002
Style
Ranch
County
Contra Costa County
APN
0071920136
Parking Spaces
—
Basement
—
Accessible
—
HOA Dues
—
Garage
—
Features
—
Last updated by owner on Oct 10, 2026.
Dec 9, 2022 • Final
Building - residential solar photovoltaic
Install a roof-mounted solar photovoltaic system with a subpanel and load center. The project includes solar panels, inverters, and updates to the conduit schedule.
Electrical
Solar
Jul 23, 2019 • Final
Building/residential/r/new single family-duplex
Legalize a residential building that was constructed without permits. The work includes finalizing the remaining portion of the project.
New construction
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.
Climate risks
1/10 Flood Factor
Minimal risk of a flood reaching the building in the next 30 years
9/10 Fire Factor
49% chance of being in a wildfire in next 30 years
5/10 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
Clayton, CA • 94517
Average low and high temperatures (°F)
60
40
64
43
72
47
72
48
80
52
85
55
87
57
92
59
85
60
79
54
64
46
57
44
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun exposure
14/ 100
Low sunlight
Sunscore
There appears to be significant shading by surrounding buildings, terrain, and vegetation.
2.8 hrs
0.1 hr
JuneDecember
Provided by Shadowmap
Redfin Estimate for 16800 Marsh Creek Rd
$1,737,682
$61K under list price of $1.80M
Nearby comparable homes
The Redfin Estimate uses 6 recent nearby sales, priced between $745K to $1.2M.