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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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925-856-0782

Last updated January 28, 2026

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Source: bridgeMLS #41121927

Listing Facts

  • TypeSingle-family
  • NeighborhoodMount Diablo Estate Park
  • Bedrooms8
  • Bathrooms10
  • Days on Prevu3
  • Size7,890 sqft
  • Price per sqft$741

Amenities

  • Dishwasher
  • 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
  • Window Features: Window Coverings
  • Year Built: 1941
  • Architectural Style: Traditional
  • Construction Materials: Wood Shingles, Wood Siding
  • Exterior Features: Back Yard, Front Yard, Side Yard, Storage, Other, Garden, Landscape Back, Private Entrance

Features

  • Fencing: Fenced, Front Yard
  • Other Structures: Shed(s)
  • Patio And Porch Features: Patio
  • Pool Features: In Ground, Solar Heat, Pool/Spa Combo, Outdoor Pool
  • Pool Private: Yes

Measurements

  • Building Area Total: 7,890
  • Lot Features: Level, Premium Lot, Back Yard, Private, Security Gate
  • Lot Size Acres: 1.44
  • Lot Size Area: 1
  • Lot Size Square Feet: 62,901
  • Lot Size Units: Acres

Financial

Taxes

  • Parcel Number: 1951520038

Interior

Features

  • Appliances: Dishwasher, Double Oven, Gas Range, Microwave, Refrigerator, Dryer, Washer, Gas Water Heater
  • Fireplace Features: Dining Room, Living Room, Master Bedroom
  • Fireplace: Yes
  • Fireplaces Total: 3
  • Flooring: Hardwood, Tile, Carpet
  • Interior Features: Den, Dining Area, Family Room, Formal Dining Room, Office, Breakfast Bar, Breakfast Nook, Pantry, Wet Bar
  • Spa: Yes

Measurements

  • Living Area: 7,890
  • Living Area Units: Square Feet

Rooms

  • Basement: Crawl Space
  • Bathrooms Full: 7
  • Bathrooms Partial: 3
  • Bathrooms Total Integer: 10
  • Bedrooms Total: 8
  • Rooms Total: 18

Other

Location

  • Subdivision Name: DIABLO C.C.

Parking

Parking

  • Covered Spaces: 4
  • Garage Spaces: 4
  • Parking Features: Attached

Schools

High School

  • High School District: San Ramon Valley (925) 552-5500

Utilities

Equipment

  • Cooling: Central Air
  • Electric: Other Solar, Photovoltaics Seller Owned, Generator
  • Heating: Zoned
  • Has Heating: Yes
  • Laundry Features: Laundry Room, Cabinets, Sink

Frequently Asked Questions

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

There are 8 bedrooms and 10 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 42% above the average price for single-family homes in Mount Diablo Estate Park and has been on the market for 38 less 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, 10-bath single-family home for sale in Diablo CA 94528. Listed on Prevu for 3 days at $5,850,000. This residence features 7,890 square feet of living space, located in Contra Costa County. The median listing price for single-family homes in this area is $3,919,000. Additional amenities include private outdoor space, dishwasher, air conditioning, parking, swimming pool, and washer/dryer. Explore more single-family home listings in Contra Costa County.

Based on information from bridgeMLS 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.