In the storied enclave of Diablo, where privacy and prestige quietly define the landscape, this masterfully crafted estate presents a rare opportunity to own a home of substance and serenity. Classic Craftsman architecture gives way to soaring interiors filled with natural light and framed garden vistas. Rich wood floors run throughout, grounding the home in warmth and refinement. Dual fireplaces anchor the living and family rooms, while expansive decks blur the line between indoors and out. At the center, a statement kitchen pairs sculptural quartzite with professional-grade Miele appliances — equally suited for intimate dinners or elegant entertaining. The primary suite is designed as a private retreat: heated floors, a spa-caliber wet room bath, and an expansive custom wardrobe evoke the feeling of a five-star resort. A secondary ensuite, two additional bedrooms, and a dedicated pool bath ensure both flexibility and thoughtful design. Outdoors, the estate unfolds into a resort-like sanctuary — sparkling pool, tranquil fountain, firelit evenings beneath the stars, and layered gardens offering both beauty and seclusion. Completing the property is a rare two-story guest residence with its own kitchen, laundry, fireplace, and private yard — ideal for extended family, executive qua
MLS #
CC41125142
MLS Source
Contra Costa Association of Realtors
Days on Site
14
Bathrooms
Double Sinks, Primary - Shower(s) over Tub(s), Primary - Solid Surface, Primary - Tub, Primary - Updated Bath(s), Tile, Updated Bath(s), Window
Kitchen
220 Volt Outlet, Breakfast Bar, Countertop - Solid Surface / Corian, Countertop - Stone, Island, Updated
Appliances
Dishwasher, Garbage Disposal, Microwave, Oven - Built-In, Oven - Double, Oven Range - Gas, Refrigerator, Dryer, Washer
Fireplace
Family Room, Living Room, Other
Flooring
Hardwood, Stone, Tile
Laundry
Hookup - Gas Dryer, In Laundry Room
Cooling
Central -1 Zone, Whole House Fan
Heating
Forced Air, Gas
Roof
Composition
Foundation
Raised, Crawl Space
Pool
Gunite, Heated - Gas, In Ground, Sweep
Style
Craftsman
Garage/Parking
Detached, Garage, Gate/Door Opener, Spaces per Unit - >1, Garage: 2 Car(s)
Elementary District
San Ramon Valley Unified
High School District
San Ramon Valley Unified
Sewer
Public Sewer
Water
Public
Listing Agent
Raelene Sprague
Notable Real Estate
License #: 00577360
Phone: (925) 819-2109
Co-Listing Agent
Tonya Colton
Notable Real Estate
License #: 01993057
Phone: (925) 699-7524
22 Calle Del Casarillo is a Single Family Residence in Diablo, CA 94528. This 4,246 square foot property sits on a 0.46 Acres Lot and features 6 bedrooms & 6 full bathrooms. It is currently priced at $4,122,000 and was built in 1972. This address can also be written as 22 Calle Del Casarillo, Diablo, CA 94528.
©2026 Contra Costa Association of Realtors. All rights reserved. All data, including all measurements and calculations of area, is obtained from various sources and has not been, and will not be, verified by broker or MLS. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information. Information provided is for personal, non-commercial use by the viewer and may not be redistributed without explicit authorization from Contra Costa Association of Realtors.
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This listing information is up-to-date as of March 11, 2026. For the most current information, please contact Raelene Sprague, (925) 819-2109