For Sale at San Marcos: 3350 Descanso Ave., San Marcos, CA 92078. 4-bedroom 3-bath, 2023 sf, 1974 Rancho Los Vallecitos De San Marcos $1,800,000 begin new search
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Overview

Your Oasis Awaits! This charming 3 bedroom, 2 bath house with a 2-car garage/shop gives you approximately 1,511 sq. ft. of living space to call home. Sitting on just over half of an acre, this home comes complete with an amazing Casita. The Casita (ADU) is equally amazing and completely ready for your family members or income producing opportunity, boasting 512 sq. ft., 1 bedroom and 1 full bath with an amazing kitchen. Both of these beautifully kept homes are move-in ready. Most of the big-ticket items are already done! To name a few, there is an updated HVAC, newer windows and they have been fully remodeled. And if you’re not enjoying time indoors, the huge yard is simply waiting for you. There is a half an acre of fully fenced property, with an electric security gate. Here you are free to let your children run and play, while you lounge by the fire pit or exercise your green thumb in the small but established fruit tree orchard. To top it off, there is also a chicken hotel, just waiting for new residents. This is the perfect house whether you’re into just watching your chickens mill about or enjoying the simple sounds of children playing. We invite you to lounge about in the private backyard, because this is the one.

Address 3350 Descanso Ave.

San Marcos, CA 92078
Listing Status ACTIVE
Asking Price $1,800,000
On Market Date $1,800,000 @ Sep 19, 2026
Listed / On-Market Entered Sep 19, 2026
Original Entry Sep 19, 2026
Rooms
All Bedrooms Down, Family Room
Square Footage 2023 sf
Bedrooms 4
Full Bathrooms 3
Location
Directions Cross Street: S. Rancho Santa Fe.
Market Area 92078 - San Marcos
Neighborhood Rancho Los Vallecitos De San Marcos
Complex San Marcos
School District Not Listed
Ownership
Age Restriction 0
Property Type
Mello-Roos Fee $0
HOA Fee $0
Listing History
Timeline Notes
Sep 19, 2026Listed for $1,800,000 #260023006SD
Public Records
County San Diego
Assessor Parcel# 2172411800
Geographic Areas

Community College District: Palomar CC

Zip Code: 92078

Highway Locator

West of I-15

East of I-5

North of I-8

North of SR-52

North of SR-56

South of SR-78

Ocean Distance 7.4 miles
Exterior
Style Single Family Residence
Material Not Listed
Lot Size ~ 21,780 sf
Fencing Vinyl,Redwood
Topography Not Listed
Roof Composition
Swimming Pool None
Exclusive Yard 1
Parking
Garage
Direct Garage Access
Garage Faces Front
Driveway
Garage Door Opener
Total Spaces: 12
Garage Spaces: 2
Non-Garage Spaces: 0 - 10.00
View Not Listed
Features
Year Built 1974 (source: Assessor)
Laundry Location Gas Dryer Hookup,Individual Room,Propane Dryer Hookup
Elevator Not Listed
Cooling Electric, Central Air
Heating Fireplace(s), Natural Gas, Wood, Forced Air
Fireplaces Guest House,Fire Pit,Family Room (1)
Additional Parcels No
Appliances Disposal, Electric Cooking, Microwave, Built-In, Electric Range, Electric 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 Area
Heating Yes
Land Lease No
Laundry Yes
Levels One
Living Area Source Assessor
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 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 260023006SD
Courtesy of On Point Homes and Properties
Listing Agent Ryan Watts