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1720 Alameda DiabloDiablo, CA 94528

For Sale

$5,850,000

Smart Buyer Rebate $58,500

Ideally located near the entrance on one of the most coveted streets within the prestigious Diablo Country Club, this exceptional estate spans 1.44 acres of flat, park-like grounds, offering rare privacy, elegance, and resort-style living. A gated circular driveway creates commanding curb appeal, while the thoughtfully designed, predominantly single-level layout features two private wings - ideal for extended family or multigenerational living. The expansive floor plan includes two primary suites, two kitchens, two laundry rooms, an oversized great room, and a formal dining room, all enhanced by recent refinements including new carpet, sliding doors, updated systems, a backup generator, and a resurfaced pool. A four-car garage with a half bath adds exceptional functionality, while the private backyard oasis is an entertainer’s dream with an outdoor kitchen, fireplace, expansive lawn, greenhouse, and charming custom playhouse. Located near parks and recreation, within the highly acclaimed San Ramon Valley School District, and offering access to world-class golf, dining, and social amenities at Diablo Country Club, this is a rare opportunity to own a prestigious and beautifully upgraded estate.

Listed by Khrista Jarvis

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License #01213582

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Coldwell Banker Realty

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9258560782

Last updated March 13, 2026

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Source: CRMLS #41121927

Listing Facts

  • TypeSingle-family
  • NeighborhoodMount Diablo Estate Park
  • Bedrooms8
  • Bathrooms8.5
  • Days on Prevu185
  • Size7,890 sqft
  • Price per sqft$741

Amenities

  • Private Outdoor Space
  • Washer/Dryer
  • Air Conditioning
  • Parking
  • Swimming Pool

Location

Mortgage Calculator

Listing History

01/28/2026
Listed by Coldwell Banker Realty
$5,850,000

Property Details for 1720 Alameda Diablo

Exterior

Construction

  • Stories: 1
  • Stories Total: 1
  • Year Built: 1941
  • Architectural Style: Traditional
  • Construction Materials: Wood Siding

Features

  • Patio And Porch Features: Patio
  • Pool Features: In Ground, Solar Heat

Measurements

  • Lot Features: Back Yard, Front Yard
  • Lot Size Acres: 1.44
  • Lot Size Area: 62,901
  • Lot Size Source: Public Records
  • Lot Size Square Feet: 62,901
  • Lot Size Units: Square Feet

Financial

Taxes

  • Parcel Number: 1951520038

Interior

Features

  • Appliances: Gas Water Heater, Dryer, Washer
  • Fireplace Features: Dining Room, Living Room, Master Bedroom
  • Fireplace: Yes
  • Flooring: Carpet, Tile, Wood
  • Interior Features: Breakfast Bar

Measurements

  • Living Area: 7,890

Rooms

  • Bathrooms Full: 7
  • Bathrooms Half: 3
  • Bathrooms Total Integer: 10
  • Bedrooms Total: 8

Other

Location

  • Subdivision Name: DIABLO C.C.

Parking

Parking

  • Attached Garage: Yes
  • Garage Spaces: 4
  • Garage: Yes
  • Parking Features: Attached, Garage
  • Parking Total: 4

Schools

High School

  • High School District: San Ramon Valley

Utilities

Equipment

  • Cooling: Central Air
  • Has Cooling: Yes
  • Heating: Forced Air
  • Has Heating: Yes
  • Sewer: Public Sewer

Frequently Asked Questions

How many bedrooms and bathrooms does this single-family home have?

There are 8 bedrooms and 8.5 bathrooms in this single-family home at 1720 Alameda Diablo.

Does this single-family home have parking?

Yes, there are 4 parking spaces available for 1720 Alameda Diablo.

How does 1720 Alameda Diablo compare to other single-family homes in Mount Diablo Estate Park?

This single-family home is listed 25% below the average price for single-family homes in Mount Diablo Estate Park and has been on the market for 104 more days than the typical home in this area.

What is the square footage on this single-family home?

According to the MLS, this listing is 7,890 sqft.

1720 Alameda Diablo is a 8-bedroom, 8.5-bath single-family home for sale in Diablo CA 94528. Available on Prevu for 185 days at $5,850,000. This home features 7,890 square feet of living space, located in Mount Diablo Estate Park. The median listing price for single-family homes in this area is $5,850,000. The home offers private outdoor space, air conditioning, parking, swimming pool, and washer/dryer. Browse more single-family home listings in Contra Costa County.

Based on information from California Regional Multiple Listing Service, Inc. and/or other sources. All data, including all measurements and calculations of area, is obtained from various sources and has not been, and will not be, verified by Prevu or the MLS. Information is provided exclusively for consumer's personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumer may be interested in purchasing.

Full MLS Disclaimers

Rebate estimate is indicative only and based on listing price and estimated buyer's agent commission paid by owner, if applicable. Final rebates are subject to Terms of Use and may vary due to final negotiated transaction terms.