This single-story mid-century modern Atomic Ranch, built in 1957 by architect Chris Cosgrove, sits on a 1-acre lot in Mount Helix and has been impeccably maintained by its original owners. With 6 bedrooms plus a den, 5 bathrooms, and 3,491 sq ft, it showcases rock facades, vaulted wood-beamed ceilings, floor-to-ceiling windows, and original vintage tile. The resort-style front yard features a pool, lush landscaping, citrus trees, and peek-a-boo views, creating an elegant mid-century retreat.
This expansive single-story Atomic Ranch, built in 1957 by renowned architect Chris Cosgrove, sits atop a full 1-acre lot in the heart of Mount Helix and has been thoughtfully maintained by its original owners. Designed to embrace indoor-outdoor living, the home features 6 bedrooms plus a den, 5 bathrooms, and 3,491 sq ft of timeless mid-century modern style, including rock facades, vaulted wood-beamed ceilings, floor-to-ceiling windows/doors, wood paneling and original vintage tile. The front yard showcases a resort-style pool surrounded by gorgeous landscaping, mature trees, citrus plantings, and peek-a-boo views, creating a private and inviting outdoor retreat. A spacious driveway provides ample parking and complements the home’s refined, architecturally striking presence—perfect for relaxing or entertaining in true mid-century fashion.
Hess Drive, Melva Rd.
High School:
Grossmont Union High School District
Floor
Type
Size
Other
-
Master Bedroom
17'5.18 m × 15'4.57 m
-
-
Bedroom
12'3.66 m × 12'3.66 m
-
-
Bedroom
15'4.57 m × 10'3.05 m
-
-
Bedroom
13'3.96 m × 10'3.05 m
-
-
Bedroom
12'3.66 m × 10'3.05 m
-
-
Living Room
26'7.92 m × 24'7.32 m
-
-
Dining Room
Measurements not available
-
-
Family Room
19'5.79 m × 16'4.88 m
-
-
Kitchen
13'3.96 m × 11'3.35 m
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-
Other
15'4.57 m × 12'3.66 m
-
-
Other
12'3.66 m × 9'2.74 m
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Short Sale:
No
Listing Type:
Exclusive Right (R)
Equipment Included:
Dishwasher, Dryer, Refrigerator, Washer, Electric Oven, Freezer, Gas Cooking
Data was last updated June 26, 2025 at 03:10 PM (UTC)
Area Statistics
Listings on market:
555
Avg list price:
$775,000
Min list price:
$54,995
Max list price:
$3,500,000
Avg days on market:
38
Min days on market:
1
Max days on market:
994
Avg price per sq.ft.:
$496.12
These statistics are generated based on the current listing's property type
and located in
East County. Average values are
derived using median calculations.