519 Proton Pl , San Marcos, CA 92078
$1,399,000
Est. Payment: $7,678.23/mo
4 Bed
4 Bath
2429 Sqft
Status: Active | Days on site: 1
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House 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.

Highlights

Listed by Gino Tinucci , 619-665-6701 and Curtis Knopp , 760-263-4735 Knopp Coastal Realty , 760-263-4321. CRMLS/Multi-Regional MLS mls logo

Property Type

Residential

HOA Fee

268 Monthly

Year Built

2025

County

San Diego

Area

92078 - San Marcos

School District

San Marcos Unified

Listing ID

NDP2609182

Questions about this listing?

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Interior Features

Bedrooms and Bathrooms
  • ▪ Bedrooms:4
  • ▪ Bathrooms:4
  • ▪ Full Bathrooms:3
  • ▪ 1/2 Bathrooms:1
Air Cond:Central Air,Electric
Fireplaces:
Other:
  • ▪ Additional:Bedroom on Main Level, Entrance Foyer, Primary Suite, Utility Room, Walk-In Closet(s)

Exterior Features

Lot:0-1 Unit/Acre,No Land Lease
Garage Capacity:4
Zoning:R1
Parking Features:Covered,Door-Multi,Direct Access,Driveway,Garage Faces Front,Garage,Garage Door Opener,Private,Side By Side

Open House

Upcoming Open Houses
Sunday 1:00 pm - 3:00 pm Oct 4
Principal Interest
$7,678
Taxes
$892
HOA
$268

Home Price

$1,399,000

Loan Details

30 yrs
7.307%

Down Payment

20%
$279,800
All calculations are estimates and provided by Blueroof360. Today’s Rates provided by Blueroof360. Information and interactive calculators are made available to you only as self-help tools for your independent use and are not intended to provide investment or tax advice. We cannot and do not guarantee their applicability or accuracy in regards to your individual circumstances. All examples are hypothetical and are for illustrative purposes. We encourage you to seek personalized advice from qualified professionals regarding all personal finance issues.
Monthly Price:
$7,678.23

Principal

Taxes

HOA

Principal Taxes HOA Total
Monthly $7,678.23 $891.86 $268.00 $8,838.10
Yearly $92,138.82 $10,702.35 $3,216.00 $106,057.17
Total $2,764,164.49 $321,070.50 $96,480.00 $3,181,714.99

Today's Rates

30 Year

7.31%

20 Year

7.2%

15 Year

6.65%

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Market insight data is pulled from the same city as the listing being viewed (San Marcos, CA).

The schools listed are within a 2-mile radius of the property; however, attendance is not guaranteed. Please contact the local school district to confirm zoning and enrollment options.

Based on information from California Regional Multiple Listing Service, Inc. This information is for your personal, non-commercial use and may not be used for any purpose other than to identify prospective properties you may be interested in purchasing. Display of MLS data is usually deemed reliable but is NOT guaranteed accurate by the MLS. Buyers are responsible for verifying the accuracy of all information and should investigate the data themselves or retain appropriate professionals. Information from sources other than the Listing Agent may have been included in the MLS data. Unless otherwise specified in writing, Broker/Agent has not and will not verify any information obtained from other sources. The Broker/Agent providing the information contained herein may or may not have been the Listing and/or Selling Agent. All properties are subject to prior sale, change or withdrawal.

IDX service by Blueroof 360

Data last updated: 2026-10-03T21:11:42.000Z

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