519 Proton Place San Marcos, CA $ 1,399,000
519 Proton Place
$ 1,399,000
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519 Proton Place

San Marcos, CA, 92078
$ 1,399,000
Bedrooms4 Baths3.1 Sq 2,429

Monthly Estimate*

$ 9,663

Listed by Gino Tinucci, Knopp Coastal Realty, ginosellsre@gmail.com
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Single Family Home for sale in San Marcos, CA

for $1,399,000 with 4 bedrooms and 3 full baths, 1 half bath. This 2,429 square foot home was built in 2025.

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.

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Single Family Pending

Price

$ 1,399,000

Bedrooms

4

Full Bath

3

Half Bath

1

Property Type

Single Family

Taxes

$ 0

Style

Year Built

2025

Town/City

San Marcos

County/Region

San Diego

MLS | Web ID

NDP2609182

Days on Market

22

Features
General
Living Area 2429
Cooling Central Air Electric
Zoning R1
HOA Fee 268
Garage Spaces 2
Pool Features Community Fenced In Ground See Remarks Association
Year Built 2025
View City Lights Hills Mountain(s) Neighborhood
Stories Count 2
Levels Two
Property Subtype Single Family Residence
Community Features Biking Curbs Dog Park Hiking Park Storm Drain(s) Street Lights Suburban Sidewalks Pool
Assoc Fee Paid Per Monthly
County San Diego
Property Type Residential
Association Amenities Call for Rules Clubhouse Management Maintenance Front Yard Outdoor Cooking Area Barbecue Playground Pickleball Park Pool Pet Restrictions Trail(s)
HOA true
Attached Garage true
Facing Direction East
Garage Y/N true
Full Baths 3
Special Listing Conditions Standard
Status Pending
Directions Use GPS. Follow signs past Shea's model homes in the back of the community to find Proton Street.
High School Mission Hills
City San Marcos
Association Name First Service
Entry Location 1
Senior Community Y/N false
High School District San Marcos Unified
Open Parking Spaces 2
MLS Area 92078 - San Marcos
Lot Size Units Square Feet
Lot Size Square Feet 0
Listing Terms Cash Conventional 1031 Exchange
Elementary School San Marcos
Property Attached Y/N false
Land Lease Y/N false
Middle/Junior High School San Marcos
Additional Parcels Y/N false
Lease Considered Y/N false
Virtual Tour https://player.vimeo.com/video/1232561869?byline=0&title=0&owner=0&name=0&logos=0&profile=0&profilepicture=0&vimeologo=0&portrait=0 https://player.vimeo.com/video/1232561873?byline=0&title=0&owner=0&name=0&logos=0&profile=0&profilepicture=0&vimeologo=0&portrait=0
Structure Type House
Living Area Units Square Feet
Standard Status Pending
Year Built Source Builder
Tax Lot 4
Property Sub Type Additional Single Family Residence
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Interior
Interior Amenities Bedroom on Main Level Entrance Foyer Primary Suite Utility Room Walk-In Closet(s)
Fireplace Features None
Total Stories 3
Common Walls No Common Walls
Air Conditioning Y/N true
Heating Y/N false
Fireplace Y/N false
Half Baths 1
Laundry Features Inside In Garage Laundry Room See Remarks Stacked Upper Level
Total Bedrooms 4
Entry Level 1
Main Level Bedrooms 3
Main Level Bathrooms 3
Total Baths 4
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Exterior
Parking Features Covered Door-Multi Direct Access Driveway Garage Faces Front Garage Garage Door Opener Private Side By Side
Lot Features 0-1 Unit/Acre
Total Parking 4
Lot Size Area 0
Spa false
Lot Size Acres 0
Private Pool false
Lot Size Source Estimated
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* Excluded Features
List By
Gino Tinucci

Listing Agent

Knopp Coastal Realty

Broker

ginosellsre@gmail.com

Email

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$9,663
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Monthly Principal & Interest
$9,663
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Default based on a 30-year fixed rate of 7.375% with 20% down. The estimated payment is offered for convenience and is not an offer of credit. Due to market fluctuations, interest rates are subject to change at any time and without notice. Your individual rate may vary. Rates may differ for FHA, VA or jumbo loans.
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Nearby
0 Elementary School
0 Middle School
Mission Hills High School High School
Pricing History
DatePricePrice ChangeDescription
10/2/2026$1,399,000 Listed Price

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519 Proton Place, San Marcos, CA, 92078 is a Single Family Home for sale at $1,399,000 with 2,429 sqft. 519 Proton Place has 4 bedrooms, 3.1 baths, and was built in 2025. The property's zip code is 92078 which is in San Marcos, CA