• Instagram
Phone310-963-9826
Login or sign up for new accountLogin / Register
Email MeEmail Me
  • Search Listings
    • Residential
    • Lease
  • Previous Sales
  •   Buyers
    • Renting vs. buying
    • How much can I afford?
    • Why work with a real estate agent
    • Finding your home
    • What do you want in a home?
    • Submitting an offer
    • After the offer is accepted
    • Moving
  •     Sellers
    • Why work with a real estate agent
    • Getting your home ready for sale
    • Pricing your home to sell
    • Negotiating the sale
    • Transaction management
    • Moving
  •     Services
    • Onepoint
    • Home Financing
    • Insurance
    • Escrow
    • Title
    • Home Warranty
    • PRESALE/STAGING
    • Relocation
  •     About
    • Leadership Team
    • About Us
    • Globally Respected
    • The Charitable Foundation
    • Diversity & Inclusion
    • Doyle
    • Agents Only
Menu
Berkshire Hathaway HomeServices California Properties Berkshire Hathaway HomeServices California Properties
Any Price
-
  • 0
  • $100,000+
  • $250,000+
  • $500,000+
  • $750,000+
  • $1,000,000+
0+ Beds
  • 0+
  • 1+
  • 2+
  • 3+
  • 4+
  • 5+
0+ Baths
  • 0+
  • 1+
  • 2+
  • 3+
  • 4+
  • 5+
Property Type
Other
VIRTUAL TOUR
321 Castle Crest Rd Alamo, CA 94507
$2,688,000 5 beds, 5 baths
3, 962 sqft
Save My Notes
 

Photo of Melissa Ellis

Melissa Ellis Manager 310-963-9826 m
310-829-0629 o
Lic#: 01905986
NRDS ID: 175524822
MelissaEllis@bhhscal.com
Text Me
Call My Cell
Call My Office
Lic#: 01905986
NRDS ID: 175524822
MelissaEllis@bhhscal.com
Santa Monica Office
3130 Wilshire Blvd, Suite 100
Santa Monica, CA 90403
Phone: 310-829-0629
Fax: 310-829-7541
Santa Monica 3130 Wilshire Blvd, Suite 100
Santa Monica, CA 90403
Call Branch Office
Fax: 310-829-7541
Interested in This Property? Your message will be sent to Melissa.
By submitting your information, you consent to be contacted by email, SMS message, and/or phone call. You may opt out at any time per our Privacy Policy.
  • Save
  • My Notes

Agent Remarks

A modern retreat with direct Mt. Diablo views, expansive windows, elevated materials, energy efficiency, and everyday livability. The entry pivot door sets the tone immediately, opening to the huge view-framing window capturing the mountain through floating maple stair treads. A striking architectural moment. The main living level centers around an open gathering area with soaring vaulted wood ceilings, stunning kitchen representing sea, earth and sky, formal dining, exposed beams, expansive Fleetwood windows, and access to an outdoor seating area overlooking Mt. Diablo. The kitchen anchors the home with quartzite island, Wolf/Sub-Zero appliances, steam oven, custom hood and walk-in pantry. A refined mix of stone, glass, metal, and natural warmth. Extensively reimodeled with an emphasis on architecture, systems, and symmetry, the home includes steel beams, double shear, owned solar, updated HVAC, maple hardwood, modern railings, upgraded lighting, and a media room / 5th bedroom. Set on 1.17 acres on one of Alamo’s friendliest streets, the flexible floor plan offers two ensuite bedrooms with one on the main level, two living areas, and easy access to two 2-car garages (total 4). Close to downtown WC, BART, Iron Horse Trail, and 680. OPEN SUNDAY 1-4pm

Listing Details

Property type: Single Family Residence (Single Family)
Status: Active
MLS# 41141765
List price is $2,688,000 Reduced by $110,000 on 8/8/2026
Beds: 5
Baths: 5 (4 full) (1 half)
None fireplaces
Built in 1991
3,962 sqft
2 stories
1.17 acres
Lot size: 1.1700
Subdivision: WEST SIDE ALAMO
County: Contra Costa
Property style: Contemporary
Construction: Wood Siding
Interior features: Eat-in Kitchen
Appliances: Gas Water Heater,Dryer,Washer
Parking description: Garage
Lot description: Cul-De-Sac,Sloped Down,Front Yard
Heating/cooling: Central Air
Heating description: Forced Air

Last Updated: 8/12/2026

 Find more Alamo homes and real estate

 Find more homes in 94507 zip code

 Find more homes in the WEST SIDE ALAMO subdivision

The style of this listing is Contemporary.
Find more Contemporary style homes for sale

Lat/Long: 37.864105, -122.049050.
Find nearby listings


Listing Agent: Carolyn Gwynn
Lic#: 01905986
Office Name: Santa Monica

Area Map

CLICK TO VIEW MAP

Nearby Schools

No schools were found in the area

Area Overview

Total population of , which has changed by % since 1990.
The median age of the population is , while the median age of dwellings is .
Out of households, are families.

Community Characteristics:

Occupancy Type

White/Blue Collar Jobs

Population by Gender

Hispanic/Non-Hispanic Population

Compared to National:

  • Search
    • My Previous Sales
    • Residential
    • Lease
    • Open Houses
    • Commercial
    • New Homes
    • Luxury
  • Buyers
    • Renting vs. buying
    • How much can I afford?
    • Why work with a real estate agent
    • Finding your home
    • What do you want in a home?
    • Submitting an offer
    • After the offer is accepted
    • Moving
  • Sellers
    • Why work with a real estate agent
    • Getting your home ready for sale
    • Pricing your home to sell
    • Negotiating the sale
    • Transaction management
    • Moving
  • Services
    • Prosperity Home Mortgage
    • HomeServices Relocation
    • HomeServices Insurance Agency
    • Pickford Escrow
    • California Title Company
    • American Home Shield
    • PINNACLE
    • myNHD
  • About
    • Leadership Team
    • About Us
    • Globally Respected
    • The Charitable Foundation
    • Diversity & Inclusion
    • Doyle
    • Agents Only

Photo of Melissa Ellis

Melissa Ellis Manager 310-963-9826 m
310-829-0629 o
Lic#: 01905986
NRDS ID: 175524822
MelissaEllis@bhhscal.com
Text Me
Call My Cell
Call My Office
Lic#: 01905986
NRDS ID: 175524822
MelissaEllis@bhhscal.com

Santa Monica Office
3130 Wilshire Blvd, Suite 100
Santa Monica, CA 90403
hsoa-logo
  • Instagram

© 2026 BHH Affiliates, LLC. An independently operated subsidiary of HomeServices of America, Inc., a Berkshire Hathaway affiliate, and a franchisee of BHH Affiliates, LLC. Berkshire Hathaway HomeServices and the Berkshire Hathaway HomeServices symbol are registered service marks of Columbia Insurance Company, a Berkshire Hathaway affiliate. Equal Housing Opportunity.
Lic#: 01317331

Photo of Equal Housing Opportunity Privacy Policy - California Privacy Notice - Terms of Use - Accessibility
Do Not Sell My Personal Information DMCA.com Protection Status