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21 Calle Del Casarillo, 
Diablo, CA 94528

$2,998,000

4

Beds

5

Baths

2,839

Sq Ft

Single Family

Virtual Tour

Active

Listed by

Ruth Ann Davidson

RE/MAX Accord

Last updated:

October 11, 2025, 03:55 PM

MLS#

41113795

Source:

CAMAXMLS

About This Home

21 Calle Del Casarillo

"THE RANCH" HISTORIC HOME AT DIABLO AS SHOWN IN " DIABLO'S TREASURES" BOOK OF HISTORIC HOMES! BUILT IN 1917! APPROX. 2839 SFT + 240 APPROX. SFT DETACHED OFFICE= 3,079 APPROX SQ FT OF LIVING SPACE! * ONE STORY GORGEOUSLY UPDATED W/ VAULTED BEAM CEILING OPEN FLOOR PLAN WRAPS AROUND POOL & BACKYARD. THE ULTIMATE IN CALIFORNIA LIVING! * BEAUTIFUL QUARTZ KITCHEN / CENTER ISLAND/BREAKFAST BAR, MIELE APPLIANCES: 6 BURNER GAS RANGE, BUILT IN REFRIGERATOR/FREEZER, DUAL OVENS, DISHWASHER!* SOAPSTONE COUNTERS BUTLER'S PANTRY W/BAR SINK /CONNOISSEUR WINE FRIG! * STUNNING GREAT RM W/ BEAUTIFUL LIGHTED SHELF WALL, BUILT IN T.V., QUARTZ GAS LOG FIREPLACE, FRENCH DOORS, GRAND CHANDELIER! * ALL BEDROOMS EN SUITE * OAK FLRS & DESIGNER LIGHTING * CUSTOM TILE BATHS * 3 HVAC UNITS * LAUNDRY ROOM * DUAL PANE WOOD WINDOWS * SERENE PRIMARY SUITE FEATURES FRENCH DOOR TO POOL, DUAL CUSTOM CLOSETS, VAULTED CEILING BATH W/ DUAL QUARTZ COUNTER VANITY SINKS, FREE STANDING TUB, SHOWER, WATER CLOSET, STORAGE AREA! * DETACHED OFFICE W/ HVAC OVERLOOKS YARD & POOL* EXPANSIVE SALT WATER POOL/POOL DECKING * AREA FOR ADU * OVERSIZED APPROX 624 SFT FINISHED GARAGE, ROOM FOR GOLF CART & STORAGE LOFT * APPROX 450 SFT STORAGE SHED * GOLF PUTTING GREEN * ARCH PLANS 4 EXPANSION TO 4,,600 SFT * RV PARKING

Home Facts

Single Family

5 Baths

4 Bedrooms

Built in 1917

Price Summary

2,998,000

$1,056 per Sq. Ft.

MLS #:

41113795

Last Updated:

October 11, 2025, 03:55 PM

Added:

9 day(s) ago

Rooms & Interior

Bedrooms

Total Bedrooms:

4

Bathrooms

Total Bathrooms:

5

Full Bathrooms:

4

Interior

Living Area:

2,839 Sq. Ft.

Structure

Structure

Architectural Style:

Ranch

Building Area:

2,839 Sq. Ft.

Year Built:

1917

Lot

Lot Size (Sq. Ft):

24,000

Finances & Disclosures

Finances

Price:

$2,998,000

Price per Sq. Ft:

$1,056 per Sq. Ft.

MLS Logo
Bay East 2025. CCAR 2025 bridgeMLS 2025. Information Deemed Reliable But Not Guaranteed. This information is being provided by the Bay East MLS, or CCAR MLS, or bridgeMLS. The listings presented here may or may not be listed by the Broker/Agent operating this website. This information is intended for the personal use of consumers and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Data last updated at October 11, 2025

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