10650 Old Castle Road, Valley Center, California 92082, Valley Center, 92082 - 5 bed, 4 bath

10650 Old Castle Road, Valley Center, California 92082 home-pic-0
ACTIVE$2,995,000
10650 Old Castle Road, Valley Center, California 92082
5Beds
4Baths
4,133Sqft
Lot
Year Built
1991
Close
-
List price
$3M
Original List price
$3M
Price/Sqft
$725
HOA
-
Days on market
-
Sold On
-
MLS number
250043644SD
Home ConditionFair
Features
Excellent View:
Deck
View-

About this home

We found 3 Cons,6 Pros. Rank: price - $3.00M(98th), sqft - 4133(91th), beds - 5(88th), baths - 4(75th).

FIRST TIME ON THE MARKET: Recently featured by Architectural Digest, this masterwork by San Diego architect Kendrick Bangs Kellogg resides high atop its 40-acre Valley Center parcel offering 360-degree views through expansive walls of glass. The hand-crafted organic architecture and landscape melds together offering an array of intimate spaces scaled for everyday living. Inspired to return to their agrarian roots, in 1972 the family purchased a 40 acre plot and planted over 900 avocado trees. Designed by the architect in 1984, the home of glass and wood with rock walls sourced from the surrounding property took 6 years to build. Nestled amongst the avocado grove, the home’s high perch lends itself to breathtaking 360 degree views of the area through the floor to ceiling windows. With 5 bedrooms and 3 bathrooms, as well as two fireplaces and custom woodwork throughout, this home captures some of Kellogg’s most inspired work, blurring the line between nature and home, between architecture and sculpture.

Price History

Date
Event
Price
11/07/25
Listing
$2,995,000
Condition Rating
Fair

This property, built in 1991, is an architectural masterpiece with custom, high-quality materials and construction. However, despite its unique design and apparent good maintenance, the home's core components, particularly the kitchen and likely the bathrooms (though no bathroom images are provided), reflect its original 1990s aesthetic. The kitchen features custom wood cabinetry and integrated appliances that, while high-end for their time, are now over 30 years old and stylistically dated compared to current trends. Similarly, light fixtures (e.g., track lighting) and carpeting throughout the living areas are consistent with the original build era. While the property is well-preserved and functional, it has not undergone extensive renovations within the last 15-30 years, meaning major systems and finishes are aged and show signs of being outdated, aligning with the 'Fair' condition criteria.
Pros & Cons

Pros

High Available Lot Utilization: The property has a large lot size, which is more than 4 times of its living area. lot size in square feet = 1762002, living area = 4133.
Architectural Masterpiece: A masterwork by renowned San Diego architect Kendrick Bangs Kellogg, featuring hand-crafted organic architecture that blurs the line between nature and home, offering a truly unique and artistic living experience.
Panoramic 360-Degree Views: Perched high atop its parcel, the property boasts breathtaking 360-degree views of the surrounding area through expansive, floor-to-ceiling walls of glass.
Expansive 40-Acre Private Estate: Residing on a vast 40-acre parcel, the property offers unparalleled privacy, space, and a serene natural setting, nestled amongst an avocado grove.
Income-Generating Avocado Grove: The property includes over 900 planted avocado trees, providing potential agricultural income or a unique agrarian lifestyle opportunity.
Custom Craftsmanship & Quality Materials: Built over six years with custom woodwork and rock walls sourced from the surrounding property, the home exemplifies bespoke construction and attention to detail.

Cons

High Price Point: With a list price of nearly $3 million, the property targets a very specific, affluent buyer demographic, potentially limiting the pool of interested parties.
Niche Architectural Appeal: While a masterpiece, the highly specialized and unconventional organic architectural style may not appeal to a broad market, potentially requiring a longer sales cycle to find the right buyer.
Extensive Property Maintenance: Managing a 40-acre estate, especially one with an active avocado grove, entails significant ongoing maintenance, operational costs, and labor, which could be a deterrent for some buyers.

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