714-745-2708

321 Castle Crest Rd, Alamo, CA 94507

$2,524,900 Approx. USD 5 beds, 5 baths
3,962 sqft

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Marketed By The Keaty Team

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Marketed By The Keaty Team REALTOR® - Sales Associate 714-608-3298 m
714-745-2708 o
Lic#: 01276603
NRDS ID: 187514104
thekeatyteam@bhhscal.com Tustin Office
18302 Irvine Blvd, Suite 240
Tustin, CA 92780
Phone: 714-832-8800
Fax: 949-565-7700

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Listing Agent

Carolyn Gwynn | carolyngwynn@compass.com
Lic#: 01888136
Broker: Courtesy of Compass
Phone: 925-336-7525

Agent Remarks

A comprehensive transformation by Alamo-based RSR Development, bringing together sophisticated design, significant structural engineering, and high-quality construction. Direct Mt. Diablo views, expansive windows, and energy efficiency. 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 designed by noted Architect Martin Hammer. 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 remodeled 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.

Listing Details

Property type: Single Family Residence (Single Family)

Status: Active Under Contract

MLS# 41141765

List price is $2,524,900 Reduced by $163,100 on 9/5/2026

Price: $2,524,900

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: 9/24/2026

Days On Market (DOM): 71

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The style of this listing is Contemporary.
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Lat/Long: 37.864105, -122.049050.
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