Open House Sun, Sep 13th 01:00 PM - 04:00 PM
Address
321 Castle Crest Rd, Alamo, CA
Price
$ 2,524,900
Property Attributes
- ID#41141765
- TypeSingle Family
- Listing Status Active
- CountyContra Costa
- CityAlamo
- NeighborhoodWest Side Alamo
- Zip94507
- StyleContemporary
- Year Built1991
- Price$ 2,524,900
- Bedrooms5
- Full Bathrooms4
- Half Bathrooms1
- Sqr Footage3962
- Lot Size1.17 Acres
Data Source:
Bay East MLS, CCAR MLS, or bridgeMLS
Property Description
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.
| Price History | |
|---|---|
| 7/16/2026 | Listed $2,798,000 |
| 8/8/2026 | 4$2,688,000 |
| 9/5/2026 | 6$2,524,900 |
General Features
| Living Area | 3962 |
|---|---|
| Sewer | Public Sewer |
| Heating | Zoned |
| Cooling | Central Air |
| Roof | Composition Shingles |
| Appliances | Dishwasher,Double Oven,Gas Range,Microwave,Oven,Refrigerator,Dryer,Washer,Gas Water Heater |
| Garage Spaces | 4 |
| Architectural Style | Contemporary |
| Pool Features | None |
| Construction Materials | Wood Siding |
| Year Built | 1991 |
| Electric | Photovoltaics Seller Owned |
| View | Las Trampas Foothills,Mt Diablo,Panoramic |
| Stories Count | 2 |
| Levels | Two Story |
| Property Subtype | Detached |
| County | Contra Costa |
| New Construction | false |
| Property Type | Residential |
| HOA | false |
| Subdivision Name | West Side Alamo |
| Garage Y/N | true |
| Total Rooms | 12 |
| Full Baths | 4 |
| Status | Active |
| Directions | Crest Ave to Castle Crest. |
| City | Alamo |
| MLS Area | Listing |
| Lot Size Square Feet | 50965 |
| Property Condition | Existing |
| Standard Status | Active |
Interior Features
| Interior Amenities | Family Room,Formal Dining Room,Pantry,Updated Kitchen |
|---|---|
| Flooring | Hardwood Flrs Throughout |
| Fireplace Features | None |
| Air Conditioning Y/N | true |
| Heating Y/N | true |
| Window Features | Double Pane Windows |
| Fireplace Y/N | false |
| Laundry Features | Dryer,Laundry Room,Washer |
| Total Bedrooms | 5 |
| Kitchen Features | Stone Counters,Dishwasher,Double Oven,Eat-in Kitchen,Disposal,Gas Range/Cooktop,Kitchen Island,Microwave,Oven Built-in,Pantry,Refrigerator,Updated Kitchen |
| Total Baths | 5 |
| 1/2 Baths | 1 |
Exterior Features
| Exterior Amenities | Front Yard |
|---|---|
| Parking Features | Attached |
| Lot Features | Cul-De-Sac,Sloped Down |
| Water Source | Public |
| Lot Size Area | 1.17 |
| Foundation Details | Raised |
| Building Area Total | 3962 |
| Lot Size Acres | 1.17 |
| ADU Y/N | false |
Amenities
- Foreclosure
- Views
- Short Sale
- New Construction
- Adult 55+
- Lease To Own
- No HOA Fees
- Furnished
- Primary On Main
- Air Conditioning
- Seller Finance
- Green
- Fixer Upper
- Horse
- Golf
- Fireplace
- Deck
- Garage
- Basement
- Pool
Property vs Single Family Average in 94507
Price
Year Built
Last updated: September 12, 2026 8:41 PM UTC Property Information © 2026 
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MetroList CA data last updated: September 12, 2026 8:28 PM UTC 
Bay East ©2026. CCAR ©2026. bridgeMLS ©2026. 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 September
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