The historically designated Casady Home is a rare example of single-level Southern California Mid-Century Modern architecture, set at the end of a private Mount Helix road and benefiting from substantial Mills Act tax savings. Designed by acclaimed architect Art Decker in 1961 and built by noted Mid-Century craftsman John Mortenson, the home was later purchased by Decker himself, who lived there for more than five decades. Original architectural details, custom millwork, extensive built-in storage, walls of glass, and seamless indoor-outdoor flow remain remarkably intact, complemented by thoughtful modern updates including custom cabinetry, high-end appliances, premium fixtures, and a permitted office/flex space. *Important – Driveway is in the process of being redone before close of escrow*
Listing Provided Courtesy of Ryan K Ponce at Compass
Property Details
Price:
$1,999,000
MLS #:
260024430
Status:
Active
Beds:
3
Baths:
3
Type:
Single Family
Subdivision:
MOUNT HELIX
Neighborhood:
eastcounty
Listed Date:
Oct 7, 2026
Finished Sq Ft:
3,035
Total Sq Ft:
3,035
Lot Size:
45,302 sqft / 1.04 acres (approx)
Year Built:
1961
See this Listing
Schools
Interior
Appliances
Dishwasher, Disposal, Dryer, Microwave, Refrigerator, Solar Panels, Washer, Freezer, Gas Oven, Ice Maker, Range/Stove Hood, Gas Range, Gas Cooking
Bathrooms
3 Full Bathrooms
Cooling
Central Forced Air, Zoned Area(s)
Fireplaces Total
1
Flooring
Tile, Wood
Heating
Zoned Areas, Forced Air Unit
Interior Features
Built-Ins, High Ceilings (9 Feet+), Living Room Deck Attached, Remodeled Kitchen
Laundry Features
Other/Remarks
Levels
1 Story
Exterior
Architectural Style
Other, See Remarks
Construction Materials
Wood
Fencing
Partial
Other Structures
N/K
Parking Features
None Known
Parking Spots
12
Parking Total
12
Patio And Porch Features
Deck
Roof
Membrane
Security Features
Other/Remarks, Security System, Security Lights
Spa Features
N/K
View
Evening Lights, Mountains/Hills, Valley/Canyon, Trees/Woods, City Lights
Financial
Map
Community
- Address10010 Shadow Rd La Mesa CA
- SubdivisionMOUNT HELIX
- CityLa Mesa
- CountySan Diego
- Zip Code91941
Subdivisions in La Mesa
Market Summary
Current real estate data for Single Family in La Mesa as of Oct 22, 2026
122
Single Family Listed
64
Avg DOM
572
Avg $ / SqFt
$1,199,205
Avg List Price
Property Summary
- Located in the MOUNT HELIX subdivision, 10010 Shadow Rd La Mesa CA is a Single Family for sale in La Mesa, CA, 91941. It is listed for $1,999,000 and features 3 beds, 3 baths, and has approximately 3,035 square feet of living space, and was originally constructed in 1961. The current price per square foot is $659. The average price per square foot for Single Family listings in La Mesa is $572. The average listing price for Single Family in La Mesa is $1,199,205. To schedule a showing of MLS#260024430 at 10010 Shadow Rd in La Mesa, CA, contact your Pacific Sotheby’s International Realty agent at 6193633000.
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10010 Shadow Rd
La Mesa, CA