3819 Walnut Ave

COMING SOON! Nestled on a rare, sprawling 19,881 sq. ft. lot in Concord’s desirable Parkside / Clayton Valley, this 3-bedroom farmhouse perfectly blends vintage soul with modern versatility. The 1,512 sq. ft. interior shines with brand-new paint, fresh landscaping, and new carpeting. A true outdoor sanctuary, the grounds feature gathering areas and a unique outdoor Murphy bed for sleeping under the stars. Exceptional self-sufficiency defines this estate, boasting a private well that services both the house and the yard, complemented by a brand-new, filtration system. A perfect property for savvy buyers and multi-generational families, this property offers unparalleled expansion potential on a massive half-acre footprint. The 502 sq. ft. standalone garage/workshop includes a bathroom and is primed for a Junior ADU conversion, while the expansive lot easily accommodates a second full-sized ADU. With its iconic farmhouse aesthetic, move-in-ready upgrades, and rare water independence, this is a unique opportunity to own one of the largest and most resourceful residential lots in the area. Professional photography to be posted soon.

Current Status

Active - Coming Soon

Original Price

$849,000

List Price

$849,000

On Market Date

Apr 10, 2026

Property Type

Detached

D/N/S

Clayton Valley

Zip Code

94519

MLS ID

41130577

APN

1143500724

Year Built

1917

Stories in Building

2

Possession

Immediate

Data Source

MAXEBRDI

Origin MLS System

CONTRA COSTA

Bed

3

Bath

1

Parking

2

Detached, Side Yard Access, Guest, Garage Faces Rear, Garage Door Opener

SQ FT

1,512

SQ FT Source

Public Records

Lot SQ FT

19,881.0

Lot Acres

0.46 Acres

Pool Info

None

Kitchen

Dishwasher, Free-Standing Range, Dryer, Washer, Gas Water Heater, 220 Volt Outlet, Tile Counters, Range/Oven Free Standing

Cooling

Ceiling Fan(s), Central Air

Disclosures

Other - Call/See Agent

Entry Level

Exterior Details

Garden, Back Yard, Side Yard, Sprinklers Automatic

Flooring

Hardwood, Tile, Carpet

Foundation

Fire Place

None

Heating

Forced Air

Laundry

220 Volt Outlet, Dryer, Washer

Main Level

2 Bedrooms, 1 Bath, Main Entry

Possession

Immediate

Architectural Style

Farm House

Construction Status

Existing

Additional Miscellaneous Features

Garden, Back Yard, Side Yard, Sprinklers Automatic

Location

Level, Back Yard, Front Yard, Landscaped, Private, See Remarks

Roof

Composition Shingles

Water and Sewer

Public, Well

Fee

Unavailable

MLS and other Information regarding properties for sale as shown in Theo have been obtained from various sources such as sellers, public records, agents and other third parties. This information may relate to the condition of the property, permitted or unpermitted uses, zoning, square footage, lot size/acreage or other matters affecting value or desirability. Unless otherwise indicated in writing, neither brokers, agents nor Theo have verified, or will verify, such information. If any such information is important to buyer in determining whether to buy, the price to pay or intended use of the property, buyer is urged to conduct their own investigation with qualified professionals, satisfy themselves with respect to that information, and to rely solely on the results of that investigation.

School data provided by GreatSchools. School service boundaries are intended to be used as reference only. To verify enrollment eligibility for a property, contact the school directly.