- 6 beds
- 5 baths
- 3,491 sqft
- ~1 acre lot
- $543 per sqft
- 1957 build
- – on site
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.
Last checked:
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Last updated Jun 25, 2025
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MLS# 250031597SD —
The Building
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Year Built:1957
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New Construction:No
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Construction Materials:Stone
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Architectural Style:Ranch
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Roof:Composition
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Stories Total:1
Interior
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Levels:One
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Eating Area:Area
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Flooring:Carpet, Laminate, Tile, Wood
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Room Type:Retreat, Main Floor Primary Bedroom, Office, Living Room, Primary Bedroom, Laundry, Primary Bathroom
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Living Area Source:Assessor
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Fireplace:Yes
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Fireplace:Living Room
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Laundry:Electric Dryer Hookup, Gas Dryer Hookup, Individual Room
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Laundry:1
Room Dimensions
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Living Area:3491.00
Location
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Directions:GPS Cross Street: Hess Drive, Melva Rd..
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Latitude:32.76884459
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Longitude:-116.96663896
The Property
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Property Type:Residential
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Subtype:Single Family Residence
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Lot Size Area:43560.0000
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Lot Size Acres:1.0000
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Lot Size SqFt:43560.00
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Lot Size Source:Assessor
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View:1
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View:Mountain(s), Peek-A-Boo
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Land Lease:No
Listing Agent
- Contact info:
- No listing contact info available
Beds
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Total Bedrooms:6
Baths
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Total Baths:5
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Full & Three Quarter Baths:5
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Full Baths:5
The Listing
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Parcel Number:4970710200
Heating & Cooling
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Heating:1
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Heating:Natural Gas, Forced Air
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Cooling:Yes
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Cooling:Zoned
Utilities
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Utilities:Water Available
Appliances
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Appliances:Gas Water Heater, Dishwasher, Refrigerator, Electric Oven, Freezer, Gas Cooking
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Included:Yes
The Community
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Subdivision:Mount Helix
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Subdivision:Mount Helix
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Neighborhood:Mt. Helix
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Association:No
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Pool:In Ground, Solar Heat
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Senior Community:No
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Private Pool:No
Parking
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Parking:Yes
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Parking:Carport, Asphalt, Other
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Parking Spaces:5.00
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Uncovered Spaces:5.00
Monthly cost estimate

Asking price
$1,899,000
Expense | Monthly cost |
---|---|
Mortgage
This calculator is intended for planning and education purposes only. It relies on assumptions and information provided by you regarding your goals, expectations and financial situation, and should not be used as your sole source of information. The output of the tool is not a loan offer or solicitation, nor is it financial or legal advice. |
$10,168
|
Taxes | N/A |
Insurance | $522 |
Utilities | $257 See report |
Total | $10,947/mo.* |
*This is an estimate |
Walk Score®
Provided by WalkScore® Inc.
Walk Score is the most well-known measure of walkability for any address. It is based on the distance to a variety of nearby services and pedestrian friendliness. Walk Scores range from 0 (Car-Dependent) to 100 (Walker’s Paradise).
Bike Score®
Provided by WalkScore® Inc.
Bike Score evaluates a location's bikeability. It is calculated by measuring bike infrastructure, hills, destinations and road connectivity, and the number of bike commuters. Bike Scores range from 0 (Somewhat Bikeable) to 100 (Biker’s Paradise).
Soundscore™
Provided by HowLoud
Soundscore is an overall score that accounts for traffic, airport activity, and local sources. A Soundscore rating is a number between 50 (very loud) and 100 (very quiet).
Air Pollution Index
Provided by ClearlyEnergy
The air pollution index is calculated by county or urban area using the past three years data. The index ranks the county or urban area on a scale of 0 (best) - 100 (worst) across the United Sates.
Sale history
Date | Event | Source | Price | % Change |
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6/25/25
Jun 25, 2025
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Listed / Active | CRMLS_CA | $1,899,000 |