321 Castle Crest Rd , Alamo, CA 94507
$2,524,900
Est. Payment: $13,857.59/mo
5 Bed
5 Bath
3962 Sqft
1.17 Acres
Status: Pending | Days on site: 61
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House 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.

Highlights

Listed by Carolyn Gwynn , 925-336-7525 Compass , 925-257-0305. CRMLS/Multi-Regional MLS mls logo

Property Type

Residential

Lot/Acreage
1.17

Year Built

1991

County

Contra Costa

Neighborhood

West Side Alamo

Listing ID

41141765

Questions about this listing?

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Interior Features

Bedrooms and Bathrooms
  • ▪ Bedrooms:5
  • ▪ Bathrooms:5
  • ▪ Full Bathrooms:4
  • ▪ 1/2 Bathrooms:1
Appliances:Gas Water Heater, Dryer, Washer
Air Cond:Central Air
Fireplaces:
Floor:Wood
Other:
  • ▪ Additional:Eat-in Kitchen

Exterior Features

Lot:Cul-De-Sac,Sloped Down,Front Yard,No Land Lease
Garage Capacity:4
Roof:Shingle
Others:
  • ▪ Additional:Wood Siding
Parking Features:Garage
Principal Interest
$13,858
Taxes
$1,610

Home Price

$2,524,900

Loan Details

30 yrs
7.307%

Down Payment

20%
$504,980
All calculations are estimates and provided by Blueroof360. Today’s Rates provided by Blueroof360. Information and interactive calculators are made available to you only as self-help tools for your independent use and are not intended to provide investment or tax advice. We cannot and do not guarantee their applicability or accuracy in regards to your individual circumstances. All examples are hypothetical and are for illustrative purposes. We encourage you to seek personalized advice from qualified professionals regarding all personal finance issues.
Monthly Price:
$13,857.59

Principal

Taxes

Principal Taxes HOA Total
Monthly $13,857.59 $1,609.62 $0.00 $15,467.22
Yearly $166,291.13 $19,315.49 $0.00 $185,606.62
Total $4,988,734.03 $579,464.55 $0.00 $5,568,198.58

Today's Rates

30 Year

7.31%

20 Year

7.2%

15 Year

6.65%

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Market insight data is pulled from the same city as the listing being viewed (Alamo, CA).

The schools listed are within a 2-mile radius of the property; however, attendance is not guaranteed. Please contact the local school district to confirm zoning and enrollment options.

Based on information from California Regional Multiple Listing Service, Inc. This information is for your personal, non-commercial use and may not be used for any purpose other than to identify prospective properties you may be interested in purchasing. Display of MLS data is usually deemed reliable but is NOT guaranteed accurate by the MLS. Buyers are responsible for verifying the accuracy of all information and should investigate the data themselves or retain appropriate professionals. Information from sources other than the Listing Agent may have been included in the MLS data. Unless otherwise specified in writing, Broker/Agent has not and will not verify any information obtained from other sources. The Broker/Agent providing the information contained herein may or may not have been the Listing and/or Selling Agent. All properties are subject to prior sale, change or withdrawal.

IDX service by Blueroof 360

Data last updated: 2026-10-03T21:11:42.000Z

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