$3,999,900For sale
9775 Alto Dr
La Mesa, CA 91941 · MLS# 260014796SD
Listing courtesy of Century 21 Affiliated- 5Beds
- 6Baths
- 6,321Sq Ft
- 1992Year Built
About This Home
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.
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Property at a Glance: 9775 Alto Dr
This single family residence property at 9775 Alto Dr, La Mesa, CA 91941 is for sale at $3,999,900. The home has 5 bedrooms, 6 bathrooms and 6,321 square feet of living space. It was built in 1992 and sits on a lot of 0.81 acres. That comes to about $633 per square foot. Reach out to set up a showing or ask for more details about this home.
Snapshot
- Status
- For sale
- Price
- $3,999,900
- Bedrooms
- 5
- Bathrooms
- 6
- Full Baths
- 5
- Half Baths
- 1
- Property Type
- Single Family Residence
- Year Built
- 1992
- Square Feet
- 6,321
- Lot Size
- 0.81 acres
- Days on Market
- 0
- MLS #
- 260014796SD
- Price per Sq Ft
- $633
- County
- San Diego
- Subdivision
- Mount Helix
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Property Details
Building
Land
Money
Rooms
Structures
Mount Helix in La Mesa, CA
9775 Alto Dr is in the Mount Helix neighborhood of La Mesa, CA. Ask Brad & Karen Mattonen about other homes for sale in Mount Helix and what nearby homes have sold for.
Location
9775 Alto Dr, La Mesa, CA 91941 Open in Google Maps
Mortgage Calculator
Principal and interest only. Taxes, insurance and HOA dues are extra.
Brad & Karen Mattonen Can Answer Your Questions About This Home
Why Work With Brad & Karen Mattonen?
Buying a home in La Mesa, CA goes better with a local agent on your side. Brad & Karen Mattonen can set up private showings, pull the latest numbers for the area, and guide you through the offer and the closing. Call 858-518-2875 to get started. Whether 9775 Alto Dr is the one or you would like to see other homes nearby, reach out any time.
Local facts
Facts and context beyond the MLS description
What the numbers say about 9775 Alto Dr and the La Mesa area around it.
Current market context
How this home compares in La Mesa
- $633This home per sq ft
- $521Median per sq ft
- 24Homes for sale like it
- 3Average days on market
At $633 per square foot, 9775 Alto Dr is priced about 21% above the $521 median for 5 or more bedroom homes for sale in La Mesa now.
Nearby sold homes
Recent sold homes near this property
Homes that sold within 1.25 miles of 9775 Alto Dr in the last 6 months, at a median price of $1,370,000.
| Address | Sold | Home | Sold price | Distance |
|---|---|---|---|---|
| 4732 Divine Way | Jul 14, 2026 | 4 bd · 3 ba · 2,781 sqft | $1,390,000 | 0.2 mi |
| 4784 Jeffer | Sep 21, 2026 | 4 bd · 3 ba · 2,791 sqft | $1,575,000 | 0.3 mi |
| 4711 Gabriel Way | May 20, 2026 | 3 bd · 3 ba · 2,471 sqft | $1,800,500 | 0.3 mi |
| 4814 Mount Helix Dr | Jun 15, 2026 | 4 bd · 3 ba · 3,044 sqft | $1,550,000 | 0.4 mi |
| 9807 Ogram Drive | Oct 15, 2026 | 4 bd · 3 ba · 2,659 sqft | $1,218,460 | 0.4 mi |
| 4742 Mount Helix Drive | Jun 8, 2026 | 3 bd · 3 ba · 2,458 sqft | $1,330,000 | 0.4 mi |
| 10111 Pinnacle | Aug 3, 2026 | 3 bd · 4 ba · 1,800 sqft | $1,350,000 | 0.4 mi |
| 4346 Mount Helix Highlands | Aug 31, 2026 | 4 bd · 3 ba · 2,210 sqft | $1,182,225 | 0.4 mi |
Every home is different. Ask for a full price review before you make an offer.
Listing timeline
Price and status history
| Date | Event | Price |
|---|---|---|
| Jun 19, 2026 | Active | $3,999,900 |
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For sale$899,0003 bd2 ba1,552 sq ft10810 Fuerte Dr.La Mesa, CA 91941Mount Helix subdivisionListing courtesy of Compass
For sale$999,0003 bd2 ba1,268 sq ft10765 Lupin WayLa Mesa, CA 91941Mount Helix subdivisionListing courtesy of Chris Beason Realty
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