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Listed by: Gino Tinucci (619) 665-6701 DRE #01516006, Curtis Knopp DRE #01440496 | Knopp Coastal Realty (760) 263-4321
$1,399,000
Monthly Est:$6,963
4 Beds
- 4 Baths
3 full baths + 1 half bath
2,429sqft
519 Proton Pl, San Marcos, CA 92078
$1,399,000
$6,963/moEst:
Get Pre-Approved
Single Family Residence
Built in 2025
$268/mo HOA
-- sqft lot
$576/sq.ft
Description
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.
- Houzeo last checked: 0 minutes ago
- Listing updated: October 7, 2026 at 7:53 pm
- Source: California Regional MLS-CA | MLS#: NDP2609182

Property Details
Status
Active
Type
Single Family Residence
No. of Stories
3
County
City
Neighborhood
--
Year Built
2025
HOA Fees
$268/mo
Finished Area
2,429 sqft
Lot Size
-- sqft lot
Basement Area
- sqft
MLS Name
California Regional MLS
MLS Number
NDP2609182
MLS Status
Active
Days on Market
6
Cumulative Days on Market
6
Open House

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Location
HOA Management
First Service
HOA Fees
$268/ Monthly
Amenities
Amenities and services may be covered by one or multiple associations and service providers.
Lawn Care
Park Playground
Club House
Bike Trails
Pool
Sports Court
CallForRules
Barbecue
OutdoorCookingArea
PetRestrictions
Management
Disclaimer: Amenities are based on third-party information and may vary; buyers must independently verify all amenities, as information is deemed reliable but not guaranteed.
Facts & Features
Rooms
Bedrooms & bathrooms
Bedrooms: 4
Bathrooms: 4
Interior
Interior Features
Bedroom On Main Level, Entrance Foyer, Primary Suite, Utility Room, Walk In Closets
Cooling
Central Air, Electric
Utilities & Energy
Pool Features
Community, Fenced, In Ground, See Remarks, Association
Fireplace Features
None
Association Amenities
Call For Rules, Clubhouse, Management, Maintenance Front Yard, Outdoor Cooking Area, Barbecue, Playground, Pickleball, Park, Pool, Pet Restrictions, Trails
Laundry Features
Inside, In Garage, Laundry Room, See Remarks, Stacked, Upper Level
Parking Features
Covered, Door Multi, Direct Access, Driveway, Garage Faces Front, Garage, Garage Door Opener, Private, Side By Side
Other Features
Lot Features
Zero To One Unit Acre
Community Features
Biking, Curbs, Dog Park, Hiking, Park, Storm Drains, Street Lights, Suburban, Sidewalks, Pool
Price History
| Date | Event | Price |
|---|---|---|
09/30/2026 Source: | Listed for Sale | $1,399,000 $576/sqft |
Getting Around 519 Proton Pl
Bike Score®
Somewhat Bikeable
29/100
Walk Score®
Car-Dependent
18/100
Data provided by Redfin
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Based on information from California Regional Multiple Listing Service, Inc. as of Oct 09, 2026, 01:00AM 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 broker or MLS. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information. Information being provided is for consumers’ personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. This website may not include listings or property addresses of sellers who have directed their listing brokers to withhold their listing or their property address from display on the Internet. © 2026 California Regional Multiple Listing Service. All Rights Reserved.
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