For Sale: 678 Gemstone Dr, San Marcos, CA 92078. 4-bedroom 3-bath, 2550 sf, 2018 Rancho Tesoro $1,125,000 begin new search
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Overview

Welcome to this beautifully upgraded, north facing home in the gated Rancho Tesoro community of San Marcos. Located in the desirable Vientos/Terracina neighborhood, this spacious 4-bedroom, 3-bath home offers approximately 2,550 square feet of comfortable and thoughtfully designed living space. Inside, the open concept layout feels bright, welcoming, and private. The main living area flows into a modern kitchen with a large quartz island, white shaker cabinets, a custom tile backsplash, and stainless steel appliances that are included with the home. A full bedroom and bathroom on the first floor provide a convenient option for guests, extended family, or a home office. Upstairs, the spacious loft offers even more flexibility and could easily be used as a playroom, office, media room, or converted into a fifth bedroom. The primary suite is a relaxing retreat with a spa like bathroom featuring a frameless glass shower, soaking tub, dual vanities, and a large walk-in closet. Two additional bedrooms, a laundry room, and plenty of storage complete the second floor. The fully fenced backyard is designed for easy maintenance, with pavers and drip irrigation creating a comfortable space for relaxing, entertaining, or enjoying evenings outdoors. The home also includes upgraded flooring throughout the main level, Lutron smart lighting, and an additional deeded parking space directly in front of the property that can accommodate a larger vehicle. Rancho Tesoro residents enjoy access to a resort style pool, BBQ area, playground, scenic walking trails, and two peaceful lakes. The community is also conveniently located near highly rated schools, parks, hiking trails, shopping, dining, and everything North County has to offer. With low HOA and Mello-Roos fees, this home offers an excellent combination of space, upgrades, convenience, and community amenities. Schedule your private showing and come experience the Rancho Tesoro lifestyle.

Address 678 Gemstone Dr

San Marcos, CA 92078
Listing Status Active
Asking Price $1,125,000
On Market Date $1,125,000 @ 2026-07-15
Listed / On-Market Entered 2026-07-15T12:38:33Z
Original Entry 2026-07-15T12:31:48Z
Property Condition Turnkey
Rooms
Walk-In Closet, Primary Bedroom, Walk-In Pantry, Laundry, Bonus Room, Kitchen, Living Room, Family Room, Primary Bathroom
Square Footage 2550 sf
Bedrooms 4
Full Bathrooms 3
Location
Directions Go through the Santa Barbara gate and call Agent for gate code access
Market Area 92078 - San Marcos
Neighborhood Rancho Tesoro
School District Not Listed
Ownership
Age Restriction 0
Property Type
Mello-Roos Fee $0
HOA Fee $240
HOA Amenities Pets Permitted, Maintenance Front Yard, Playground, Pool, Fire Pit, Barbecue, Outdoor Cooking Area, Maintenance Grounds, Picnic Area
HOA Features Curbs, Biking, Hiking, Foothills, Street Lights
Public Records
County San Diego
Assessor Parcel# 2221733006
Zoning Rancho Tesoro San Marcos Neighborhood
Exterior
Style Single Family Residence
Material Not Listed
Lot Size 5000 ~ 3,300 sf
Fencing Not Listed
Topography Not Listed
Roof Concrete
Entry Steps 1
Swimming Pool Association, Heated, Electric Heat
Exclusive Yard 0
Parking
Total Spaces: 3
Garage Spaces: 2
Non-Garage Spaces: 0 - 1.00
View Hills
Features
Year Built 2018 (source: Estimated)
Laundry Location Inside,Upper Level
Elevator Not Listed
Cooling Central Air
Heating Electric
Sewer/Septic Public Sewer
Fireplaces None (0)
Additional Parcels No
Appliances No
Assessments Yes
Association Yes
Association Fee 2 0
Association Fee Frequency Monthly
Attached Garage Yes
Below Grade Finished Area 0
Carport Spaces 0
Common Walls No Common Walls
Cooling Yes
Entry Location front
Heating Yes
High School District San Marcos Unified
Land Lease No
Laundry Yes
Levels Two
Living Area Source Assessor
Lot Features Back Yard
Lot Size Source Estimated
Lot Size Units Square Feet
Main Level Bathrooms 1
Main Level Bedrooms 1
New Construction No
Number Of Units Total 0
Number Remotes 2
Parking No
Patio No
Pool Private No
Property Attached No
Sprinklers No
Tax Model
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 North San Diego County
MLS Number NDP2606743
Courtesy of Coldwell Banker Realty
Listing Agent John Castillo
juan.p.castillo@me.com