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  • 519 Proton Place

519 Proton Place, San Marcos, CA 92078

$1,399,000 Approx. USD 4 beds, 4 baths
2,429 sqft

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Berkshire Hathaway HomeServices California Properties 11828 Rancho Bernardo Rd, Ste 210
San Diego, CA 92128
888-995-7575
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Listing Agent


Gino Tinucci | ginosellsre@gmail.com
Lic#: 01516006
Broker: Courtesy of Knopp Coastal Realty
Phone: 619-665-6701

Co Listing Agent


Curtis Knopp | CurtisKnopp@gmail.com
Lic#: 01440496
Broker: Courtesy of Knopp Coastal Realty
Phone: 760-263-4735

Agent Remarks

BRAND-NEW LUXURY HOME WITH CITY VIEWS, MULTIGENERATIONAL LIVING & SUSTAINABLE DESIGN! Welcome to The Hill District in San Marcos, where innovative design, modern amenities, and a commitment to sustainability come together to create an exceptional modern lifestyle. This never-lived-in, 4-bedroom, 3.5-bathroom, three-story home offers 2,429 square feet of thoughtfully designed living space with luxury finishes throughout—and no carpet! This energy-conscious home features owned solar panels, wall batteries, an EV charger, and a Halo-5 whole-home water filtration system. Additional highlights include luxury vinyl flooring, designer window coverings, city and mountain views, an outdoor kitchen, and one of the largest yards in the neighborhood. FIRST FLOOR: Designed with flexibility in mind, the private bedroom and full bathroom can function as a guest suite, home office, gym, in-law suite, or multigenerational living space. The area can be closed off from the main residence and offers the potential for an attached junior ADU-style setup. It includes direct garage access, a washer/dryer, sink, and private access to the backyard and full outdoor kitchen. The outdoor kitchen features a built-in BBQ, 2-burner cooktop, mini refrigerator, and microwave. A spacious patio with luxury pavers and low-maintenance landscaping creates a sunny and inviting outdoor retreat. SECOND FLOOR: The heart of the home features a spacious open-concept great room with a beautifully appointed luxury kitchen and an impressive 23-foot-wide covered patio. The kitchen showcases white shaker cabinetry, white quartz countertops, stainless-steel appliances, an electric induction cooktop, smart refrigerator, reach-in pantry, and a large island with stainless-steel sink and seating for up to four. THIRD FLOOR: Three additional bedrooms, two full bathrooms, and a dedicated laundry room provide plenty of space and privacy. The spacious primary suite features a private balcony, two walk-in closets, a luxurious freestanding soaking tub, and a walk-in shower. The formal laundry room includes a brand-new washer and dryer set. And yes—there are two laundry areas, one serving each living space. The attached garage includes a covered driveway, providing the ability to accommodate two additional vehicles in front of the home. Outside, enjoy one of the neighborhood's largest yards, complemented by views of San Marcos city lights and surrounding mountains. The Hill District in North City is a thoughtfully planned community featuring innovative architecture, modern amenities, and sustainability-focused design. Planned and developing amenities include a luxury community center, pool, sports courts, and future parks. Conveniently located with immediate freeway access and close to restaurants, shopping, and everyday conveniences. Enjoy approximately 15 minutes to North San Diego County beaches, 30 miles to downtown San Diego, and 60 miles to Orange County. Brand-new construction, flexible living spaces, exceptional outdoor amenities, and modern sustainability features—this is the opportunity to experience a new standard of living in San Marcos.

Listing Details

Property type: Single Family Residence (Single Family)
Status: Pending
MLS# NDP2609182
Price: $1,399,000
HOA Fee is $268.00
Beds: 4
Baths: 4 (3 full) (1 half)
None fireplaces
Built in 2025
2,429 sqft
2 stories
0.00 acres
Lot size: 0.0000
County: San Diego
Zoning: R1
Interior features: Bedroom on Main Level,Entrance Foyer,Primary Suite,Utility Room,Walk-In Closet(s)
Parking description: Covered,Door-Multi,Direct Access,Driveway,Garage Faces Front,Garage,Garage Door Opener,Private,Side By Side
Lot description: ZeroToOneUnitAcre
Heating/cooling: Central Air,Electric
MLS area: 92078 - San Marcos

Last Updated: 10/19/2026

 Days On Market (DOM): 16

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This listing belongs to the 92078 - San Marcos MLS area

Lat/Long: 33.133218, -117.167578.
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DISCLAIMER: There is NO WARRANTY, expressed or implied, for the accuracy of this information or its applicability to your financial situation. Please consult your financial and/or tax advisor. GET PRE-APPROVED The loan's interest rate will depend upon the specific characteristics of the loan transaction and credit profile up to the time of closing.

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Berkshire Hathaway HomeServices California Properties 11828 Rancho Bernardo Rd, Ste 210
San Diego, CA 92128
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