For Sale at Mount Helix: 9775 Alto Dr, La Mesa, CA 91941. 5-bedroom 5.5-bath, 6321 sf, 1992 Mount Helix $3,999,900 begin new search
Click a button below to contact Buyers' Agent from Compass. Listing Office: Century 21 Affiliated.
Schedule A Tour Ask A Question Save To Favorites Follow 9775 Alto Dr

Overview

Experience luxury living in the heart of Mt. Helix with this fully remodeled estate offering panoramic views of the surrounding mountains, downtown San Diego, Coronado, and the Pacific Ocean. Spanning approximately 6,322 square feet, this exceptional residence features 5 bedrooms, 5.5 bathrooms, including two primary suites, and breathtaking views from nearly every room. The open-concept floor plan showcases wide-plank hardwood flooring, designer finishes, custom cabinetry, marble-clad bathrooms, and expansive windows that bring the outdoors in. The chef’s kitchen opens seamlessly to the living and dining areas, creating an ideal setting for entertaining. Multiple view terraces and outdoor living spaces provide the perfect backdrop for sunsets and sparkling city lights. The lower level offers a spacious secondary living area with a large family room, wet bar, wine storage, and flexible bonus space ideal for a theater, gym, office, or multigenerational living. Situated on approximately 0.81 acres with a gated entrance, expansive motor court, and 3-car garage, this rare Mt. Helix estate offers an unmatched combination of privacy, space, luxury, and spectacular views. A truly one-of-a-kind opportunity. Experience luxury living in the heart of Mt. Helix with this fully remodeled estate offering panoramic views of the surrounding mountains, downtown San Diego, Coronado, and the Pacific Ocean. Spanning approximately 6,322 square feet, this exceptional residence features 5 bedrooms, 5.5 bathrooms, including two primary suites, and breathtaking views from nearly every room. The open-concept floor plan showcases wide-plank hardwood flooring, designer finishes, custom cabinetry, marble-clad bathrooms, and expansive windows that bring the outdoors in. The chef’s kitchen opens seamlessly to the living and dining areas, creating an ideal setting for entertaining. Multiple view terraces and outdoor living spaces provide the perfect backdrop for sunsets and sparkling city lights. The lower level offers a spacious secondary living area with a large family room, wet bar, wine storage, and flexible bonus space ideal for a theater, gym, office, or multigenerational living. Situated on approximately 0.81 acres with a gated entrance, expansive motor court, and 3-car garage, this rare Mt. Helix estate offers an unmatched combination of privacy, space, luxury, and spectacular views. A truly one-of-a-kind opportunity.

Address 9775 Alto Dr

La Mesa, CA 91941
Listing Status Active
Asking Price $3,999,900
On Market Date $3,999,900 @ 2026-06-18
Listed / On-Market Entered 2026-06-18T14:17:20Z
Original Entry 2026-06-18T10:41:59Z
Rooms
Square Footage 6321 sf
Bedrooms 5
Full Bathrooms 5
Half Baths 1
Location
Directions Cross Street: Mount Helix Dr.
Market Area 91941 - La Mesa
Neighborhood Mount Helix
Complex Mount Helix
School District Not Listed
Ownership
Age Restriction 0
Property Type
Mello-Roos Fee $0
HOA Fee $0
Public Records
County San Diego
Assessor Parcel# 4964300900
Exterior
Style Single Family Residence
Material Not Listed
Lot Size ~ 35,283 sf
Fencing Not Listed
Topography Not Listed
Swimming Pool None
Patio Covered, Deck
Parking
Driveway
Total Spaces: 9
Garage Spaces: 3
Non-Garage Spaces: 0 - 6.00
View Ocean, Mountain(s), Panoramic
Features
Year Built 1992
Laundry Location Gas Dryer Hookup,Individual Room,Electric Dryer Hookup
Elevator Not Listed
Cooling Central Air, Zoned
Heating Natural Gas, Forced Air
Fireplaces Living Room (1)
Additional Parcels No
Appliances Yes
Assessments No
Association No
Association Fee 2 0
Attached Garage Yes
Below Grade Finished Area 0
Carport Spaces 0
Construction Materials Stucco
Cooling Yes
Heating Yes
Land Lease No
Laundry Yes
Levels Two
Living Area Source Appraiser
Lot Size Source Assessor
Lot Size Units Square Feet
Main Level Bathrooms 0
Main Level Bedrooms 0
New Construction No
Number Of Units Total 0
Number Remotes 0
Parking Yes
Patio Yes
Pool Private No
Property Attached No
Sprinklers No
View Yes
Well Depth 0
Well Gallons Per Minute 0
Well Pump Horsepower 0
Well Report No
Monthly Payment Calculator
Property Tax estimate of 1% of listing price does not include local voter-approved bonds/assessments, supplemental taxes for new construction or ownership changes, extra local fees, etc.
Listing Source
Platform CRMLS
AOR San Diego
MLS Number 260014796SD
Courtesy of Century 21 Affiliated
Listing Agent Melvina Selfani