1 / 60

$3,985,000

22 Calle Del Casarillo

Diablo, CA 94528

Active

Beds

Baths

4,246

Sq. Ft.

1972

Year Built

Contra Costa

County

SingleFamilyResidence

Property Type

About this home

Tucked at the end of a private cul-de-sac in Diablo, this exceptionally remodeled estate offers a rare opportunity to own TWO FULLY INDEPENDENT RESIDENCES on apx. 1/2 acre of park-like grounds.Thoughtfully designed the property features a refined single story main residence, showcasing vaulted ceilings, European white oak floors and a seamless indoor-outdoor flow. Custom detailing and amenities, including smart home technology provide comfort and convenience throughout! Expansive living spaces open to an elevated entertaining deck overlooking the resort-style pool and lush landscaping. The fully independent guest residence lives like a true second home - complete with its own private yard, an upstairs primary suite and an additional bedroom and bath on the main level. Ideal for multi-generational living, extended guests, or private work-from-home retreat. With versatility rarely found in today's market. The grounds are a stand out feature - an artful composition of mature landscaping, curated garden rooms and intimate outdoor spaces for both relation and entertaining. Every element has been created to enhance the experience of indoor-outdoor living. This is more than a home, it is a private dual residence estate offering a lifestyle of comfort, flexibility. and timeless appeal.

Listed by Raelene Sprague · DRE #00577360 · Notable Real Estate

MLS #1153563572

ListedFeb 25, 2026

Property Details

Architecture

StoriesN/A

StyleCraftsman

Total UnitsN/A

RoofShingle

Garage Spaces2

PoolN/A

SpaN/A

Features & Amenities

Interior FeaturesBreakfast Bar

Exterior FeaturesN/A

FlooringStone, Tile, Wood

CoolingCentral Air, Whole House Fan

HeatingForced Air, Natural Gas

FireplaceFamily Room, Living Room

LaundryN/A

Parking FeaturesGarage, Garage Door Opener, One Space

Parking Total2

Patio & PorchDeck, Patio, Porch

Entry LevelN/A

Entry LocationN/A

Common WallsN/A

Property Features

Lot Size0.46 ac

Lot FeaturesBack Yard, Cul De Sac, Front Yard, Garden, Sprinklers In Rear, Sprinklers In Front, Sprinklers Timer, Sprinklers On Side, Yard

ViewN/A

DirectionsCross Street: Mt Diablo Scenic.

Community

AreaN/A

School DistrictSan Ramon Valley

Tax & Financial

TermsCash, Conventional

Land LeaseN/A

HOA NameN/A

HOA FeeN/A

Request a Tour

Mortgage Estimate

$21,210/mo

20% down · 7% APR · 30-yr fixed

Purchase PriceDown Payment: 20%Interest Rate: 7%

Estimate only. Does not include taxes, insurance, or HOA.

Last updated: October 21, 2026 at 3:00 PM

The multiple listing data appearing on this website is owned and copyrighted by California Regional Multiple Listing Service, Inc. ("CRMLS") and is protected by all applicable copyright laws. This information is for your personal, non-commercial use and may not be used for any purpose other than to identify prospective properties you may be interested in purchasing. All listing data, including but not limited to square footage and lot size, is believed to be accurate but is not guaranteed by the listing Agent, listing Broker, or CRMLS. Buyers are responsible for verifying the accuracy of all information and should independently investigate the data or retain appropriate professionals prior to making any decisions. Information from sources other than the Listing Agent may have been included in the MLS data. Unless otherwise specified in writing, Broker/Agent has not and will not verify any information obtained from other sources. The Broker/Agent providing the information herein may or may not have been the Listing and/or Selling Agent. Properties may or may not be listed by the office/agent presenting the information. The listing broker's offer of compensation is made only to participants of the MLS where the listing is filed.