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678 Gemstone DrSan Marcos, CA 92078

For Sale

$1,125,000

Smart Buyer Rebate $11,250

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.

Listed by John Castillo

·

License #02020554

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Coldwell Banker Realty

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760-807-6297

Last updated July 30, 2026

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Source: bridgeMLS #CRNDP2606743

Listing Facts

  • TypeSingle-family
  • NeighborhoodBarham Discovery Community
  • Bedrooms4
  • Bathrooms3
  • Days on Prevu17
  • HOA/Maint. Fees$240/month
  • Size2,550 sqft
  • Price per sqft$441

Amenities

  • Pets Allowed
  • Air Conditioning
  • Parking
  • Swimming Pool

Location

Mortgage Calculator

Listing History

07/30/2026
Status changed to Active
$1,125,000
07/22/2026
Status changed to Pending
$1,125,000
07/15/2026
Listed by Coldwell Banker Realty
$1,125,000

Property Details for 678 Gemstone Dr

Association

Amenities

  • Association Amenities: Playground, Pool, Other, Barbecue, BBQ Area, Picnic Area
  • Pets Allowed: Yes

Fees

  • Association Fee: $240.00 Monthly
  • Association Fee Includes: Maintenance Grounds

Exterior

Construction

  • Stories: 2
  • Year Built: 2018
  • Exterior Features: Back Yard

Features

  • Pool Features: Electric Heat
  • View: Hills

Measurements

  • Building Area Total: 2,550
  • Lot Features: Back Yard, Street Light(s)
  • Lot Size Acres: 0.07
  • Lot Size Area: 0
  • Lot Size Square Feet: 3,300
  • Lot Size Units: Acres

Financial

Taxes

  • Parcel Number: 2221733006

Interior

Features

  • Interior Features: Family Room, Pantry

Measurements

  • Living Area: 2,550
  • Living Area Units: Square Feet

Rooms

  • Bathrooms Full: 3
  • Bathrooms Total Integer: 3
  • Bedrooms Total: 4

Parking

Parking

  • Covered Spaces: 2
  • Garage Spaces: 2
  • Parking Features: Attached

Schools

High School

  • High School District: San Marcos Unified

Utilities

Equipment

  • Cooling: Central Air
  • Heating: Electric
  • Has Heating: Yes
  • Laundry Features: Inside, Upper Level
  • Sewer: Public Sewer

Frequently Asked Questions

How many bedrooms and bathrooms does this single-family home have?

There are 4 bedrooms and 3 bathrooms in this single-family home at 678 Gemstone Dr.

Does this single-family home have parking?

Yes, there are 2 parking spaces available for 678 Gemstone Dr.

How does 678 Gemstone Dr compare to other single-family homes in Barham Discovery Community?

This single-family home is listed 11% above the average price for single-family homes in Barham Discovery Community and has been on the market for 67 less days than the typical home in this area.

What is the square footage on this single-family home?

According to the MLS, this listing is 2,550 sqft.

678 Gemstone Dr is a 4-bedroom, 3-bath single-family home for sale in San Marcos CA 92078. On Prevu for 17 days at $1,125,000. This property features 2,550 square feet of living space, located in Barham Discovery Community. The median listing price for single-family homes in this area is $838,000. The home offers pets allowed, air conditioning, parking, and swimming pool. Browse more single-family home listings in San Diego County.

Based on information from bridgeMLS and/or other sources. All data, including all measurements and calculations of area, is obtained from various sources and has not been, and will not be, verified by Prevu or the MLS. Information is provided exclusively for consumer's personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumer may be interested in purchasing.

Full MLS Disclaimers

Rebate estimate is indicative only and based on listing price and estimated buyer's agent commission paid by owner, if applicable. Final rebates are subject to Terms of Use and may vary due to final negotiated transaction terms.