---
listing_id: CC41125142
status: Active
price: 4122000
beds: 6
baths_full: 6
baths_half: 0
sqft_living: 4246
sqft_lot: 20000
lot_acres: 0.46
year_built: 1972
property_type: Residential
property_subtype: Single Family Residence
address: "22 Calle Del Casarillo"
city: Diablo
state: CA
zip: 94528
county: "Contra Costa County"
lat: 37.8334097
lng: -121.9529855
days_on_market: 34
hoa_fee: 
hoa_frequency: 
garage_spaces: 2
list_agent: "Raelene Sprague"
list_office: "Notable Real Estate"
list_agent_phone: "(925) 819-2109"
list_agent_license: 00577360
mls_source: MAXEBRDI
modified: 2026-03-30
transaction_type: buy
---

Home | Contra Costa County | Diablo | 94528 | 22 Calle Del Casarillo

22 Calle Del Casarillo, Diablo, CA 94528

MLS: CC41125142 | Status: Active | Price: $4,122,000
Beds/Baths: 6 / 6
Property Type: Residential

Quick Facts

Beds Baths Sq Ft Acres Lot Yr Built
6 6 4,246 0.46 1972

Remarks

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.

MLS Listing Information

Field Value
MLS # CC41125142
MLS Source Contra Costa Association of Realtors
Days on Site 34

Features

Interior Features

Feature Details
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

Exterior Features

Feature Details
Roof Composition
Foundation Raised, Crawl Space
Pool Gunite, Heated - Gas, In Ground, Sweep
Style Craftsman

Parking, School, and Other Information

Feature Details
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

Contact Information

Listing Agent Co-Listing Agent
Raelene Sprague Tonya Colton
Notable Real Estate Notable Real Estate
License #: 00577360 License #: 01993057
Phone: (925) 819-2109 Phone: (925) 699-7524

School Ratings

School data provided by GreatSchools.org

Nearby Schools

School Type Grades Distance Rating
Green Valley Elementary School public K-5 1.51 mi 10
Los Cerros Middle School public 6-8 1.67 mi 9
Monte Vista High School public 9-12 1.73 mi 10
Sycamore Valley Elementary School public K-5 1.89 mi 9
Vista Grande Elementary School public K-5 1.89 mi 8
Infant- Pre public UG 1.98 mi N/A
John Baldwin Elementary School public K-5 2.52 mi 10
Charlotte Wood Middle School public 6-8 2.56 mi 8
San Ramon Valley High School public 9-12 2.97 mi 10
Montair Elementary School public K-5 2.98 mi 10
Greenbrook Elementary School public K-5 3.13 mi 9
Del Amigo High (Continuation) School public 7-12 3.14 mi 2
Golden View Elementary School public K-5 3.28 mi 9
Diablo Vista Middle School public 6-8 3.98 mi 9
Stone Valley Middle School public 6-8 4.05 mi 9
Central County Special Education Programs School public K-12 4.05 mi N/A
Rancho Romero Elementary School public K-5 4.07 mi 9
Coyote Creek Elementary School public K-5 4.14 mi 10
Iron Horse Middle School public 6-8 4.32 mi 9
Tassajara Hills Elementary School public K-5 4.65 mi 9

Nearby Homes

Address Price Beds Baths Sq Ft Status
387 Golden Grass Dr $3,499,000 4 4/1 4,525 Active
2705 Mossy Oak Dr $3,698,800 5 3/1 3,911 Active
2007 Calle Los Callados $3,995,000 6 5 4,362 Active
2255 Alameda Diablo $4,900,000 5 3/2 4,540 Active

Disclosures

©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.

Presently MLSListings.com displays Active, Contingent, Pending, and Recently Sold listings. Recently Sold listings are properties which were sold within the last three years. After that period listings are no longer displayed in MLSListings.com. Pending listings are properties under contract and no longer available for sale. Contingent listings are properties where there is an accepted offer, and seller may be seeking back-up offers. Active listings are available for sale.

This listing information is up-to-date as of March 30, 2026. For the most current information, please contact Raelene Sprague, (925) 819-2109.