Inspired by Frank Lloyd Wright and classic mid-century design, this custom-built Castro Valley residence—offered by its original owner—is ideally located in the San Francisco Bay Area, approximately 30 miles east of San Francisco and about 35 miles from Silicon Valley. Set within the sought-after Proctor School District and bordering EBMUD Watershed land within the East Bay Regional Park network, the property offers great privacy, natural beauty, and abundant wildlife. Architectural highlights include vaulted wood ceilings with exposed beams, rich parquet flooring, multiple stained glass windows, and a dramatic fireplace constructed from Northern California boulders. The home features 4 bedrooms, 2.5 bathrooms, a dedicated office, private sauna with shower, and generous storage throughout. Outdoor amenities include a large swimming pool, mature landscaping, hillside views, and a horse stable. New homeowner may apply for Redwood Rangers membership, providing access to adjacent 600-acre cooperative pasture, trail system, and seasonal riding facilities. A rare opportunity to restore and elevate a distinctive mid-century modern home of architectural significance into a remarkable mid-century modern estate of enduring value. Some images have been digitally altered to show the property potential.
AGENT: LISTING BROKERAGE: Gold Country Properties, Inc.
Courtesy of Gold Country Properties, Inc.. Disclaimer: All data relating to real estate for sale on this page comes from the Broker Reciprocity (BR) of the California Regional Multiple Listing Service. Detailed information about real estate listings held by brokerage firms other than The Agency RE include the name of the listing broker. Neither the listing company nor The Agency RE shall be responsible for any typographical errors, misinformation, misprints and shall be held totally harmless. The Broker providing this data believes it to be correct, but advises interested parties to confirm any item before relying on it in a purchase decision. Copyright 2026. California Regional Multiple Listing Service. All rights reserved. 5284 Camino Alta Mira
Castro Valley, CA
Property Details
Price:
$1,400,000
MLS #:
41133585
Status:
Active
Beds:
4
Baths:
3
Type:
Single Family
Subtype:
Single Family Residence
Subdivision:
PROCTOR
Listed Date:
May 28, 2026
Finished Sq Ft:
2,306
Lot Size:
17,633 sqft / 0.40 acres (approx)
Year Built:
1976
ModernParking TotalProctorPasture
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Schools
Interior
Bathrooms
2 Full Bathrooms, 1 Half Bathroom
Cooling
WW
Flooring
TILE, WOOD
Heating
GAS
Levels
U
Exterior
Architectural Style
MOD
Attached Garage YN
1
Construction Materials
WOD
Garage Spaces
1
Parking Spots
1
Parking Total
1
Patio And Porch Features
DK
View
MT, PAS
Financial
Map
Community
- Address5284 Camino Alta Mira Castro Valley CA
- SubdivisionPROCTOR
- CityCastro Valley
- CountyAlameda
- Zip Code94546