For Sale at Descanso: 26440 Old Highway 80, Descanso, CA 91916. 4-bedroom 6.5-bath, 7117 sf, 1990 Descanso $3,125,000 begin new search
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Overview

PRICE IMPROVEMENT! AMAZING OPPORTUNITY! YOUR PRIVATE LAKE AWAITS — LA MARQUESA Imagine waking to still water, towering oaks, lakefront tullies and birdsong, where the city feels a world away—yet downtown San Diego is approximately 40 miles from your door. Welcome to La Marquesa, an extraordinary 7,117 sq. ft. lakefront estate set on 7+ peaceful acres and one of only two residences privileged with access to this private, stocked lake. Expansive decks overlooking the water and mountains invite quiet mornings, spectacular sunsets and evenings beneath the stars. Inside, four spacious bedroom suites each offer an ensuite bath, complemented by two optional bedrooms, 6 full baths and a powder room. The dramatic great room, grand fireplace and rich English-style pub create an unforgettable setting for entertaining. The generous kitchen features quartz counters, center island, 8-burner Viking range/oven, stainless appliances, abundant cabinetry and Travertine flooring. A sweeping circular staircase, crystal chandelier and distinctive architectural details add timeless character. This is more than a home—it is space to breathe, room to gather and the privacy to truly escape. Properties like La Marquesa rarely come along. Come experience it in person—because photographs can capture the home, but they can't capture the feeling of being here. Views from every room! This is

Address 26440 Old Highway 80

Descanso, CA 91916
Listing Status Active
Asking Price $3,125,000
On Market Date $3,200,000 @ Jul 11, 2026
Listed / On-Market Entered Jul 10, 2026
Original Entry Jul 10, 2026
Rooms
Primary Bedroom, Primary Bathroom, Bonus Room, Foyer, Laundry, Living Room, Walk-In Pantry, Formal Entry, Game Room, Great Room, Entry, Kitchen, Utility Room, Retreat, Walk-In Closet
Square Footage 7117 sf
Flooring Tile, Carpet
Bedrooms 4
Full Bathrooms 6
Half Baths 1
Location
Directions Interstate 8 to the Descanso/Highway 79 exit. Go north approximately 1.5 miles and the entrance will be on the left. Cross Street: Old Highway 80/Samaguama Vlly.
Market Area 91916 - Descanso
Neighborhood Descanso
Complex Descanso
School District Not Listed
Ownership
Age Restriction 0
Property Type
Mello-Roos Fee $0
HOA Fee $0
Public Records
County San Diego
Assessor Parcel# 4081001500
Geographic Areas

Community College District: Grossmont-cuyamaca CC

Zip Code: 91916

Highway Locator

East of I-15

East of I-5

North of I-8

East of I-805

East of SR-163

East of SR-67

Ocean Distance 36.2 miles
Exterior
Style Single Family Residence
Material Not Listed
Lot Size ~ 307,098 sf
Fencing Partial
Topography Not Listed
Roof Membrane, Composition
Swimming Pool None
Exclusive Yard 1
Parking
Gated
Garage - Single Door
Total Spaces: 14
Garage Spaces: 4
Non-Garage Spaces: 0 - 10.00
View Not Listed
Features
Year Built 1990 (source: Assessor)
Laundry Location Individual Room,Electric Dryer Hookup,Propane Dryer Hookup
Elevator Not Listed
Cooling Central Air
Heating Electric, Propane, Forced Air
Fireplaces Primary Retreat,Living Room (1)
Additional Parcels No
Appliances Disposal, Microwave, Built-In Range, Refrigerator, Propane Range, Ice Maker, Double Oven, Dishwasher
Appliances Yes
Assessments No
Association No
Association Fee 2 0
Attached Garage No
Below Grade Finished Area 0
Carport Spaces 0
Construction Materials Stucco
Cooling Yes
Eating Area Family Kitchen, Area
Heating Yes
Land Lease No
Laundry Yes
Levels Three Or More
Living Area Source Assessor
Lot Size Source Assessor
Lot Size Units Acres
Main Level Bathrooms 0
Main Level Bedrooms 0
New Construction No
Number Of Units Total 0
Number Remotes 0
Parking Yes
Patio No
Pool Private No
Property Attached No
Sprinklers No
View No
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 260016959SD
Courtesy of Coldwell Banker West
Listing Agent Greg Fox & Patti Fox