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Listed by Knopp Coastal Realty, Gino Tinucci, Curtis Knopp Listing Contact: 619-665-6701
4 Beds
4 Baths
2,429 sqft

$1,399,000

519 Proton PL, San Marcos CA, 92078

Price per sqft$575.96
Built in2025
Property size2,429 sqft
Property typeResidential

Overview

Active

Listed Oct 1, 2026

Updated 12h ago

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 paver

$9,308/mo

Est. mortgage payment based on a $1,399,000 home price.

All estimates are provided by Luxury Presence for informational purposes only. Actual amounts may vary.

Additional information

MLS® ID
CRNDP2609182

Interior Features

Bedrooms
4
Bathrooms
4
Cooling
Yes
Basement
No

Other Property Details

Association Fee Frequency
Monthly
Garage
Yes
View
Yes
Pool
Yes
MLS provider logo

Listed by Knopp Coastal Realty, Gino Tinucci DRE:01516006, Curtis Knopp
Listing Contact: 619-665-6701 

All information deemed reliable but not guaranteed and should be independently verified. All properties are subject to prior sale, change or withdrawal. Neither listing broker(s) nor Reach Real Estate shall be responsible for any typographical errors, misinformation, misprints and shall be held totally harmless.

The data relating to real estate for sale on this website comes in part from the Internet Data Exchange program of the MLS Listings, Inc. MLS system. Real estate listings held by brokerage firms other than Reach Real Estate are marked with the Internet Data Exchange icon (a stylized house inside a circle) and detailed information about them includes the names of the listing brokers and listing agents.

©2026 MLS Listings, Inc. All rights reserved. 2026

Data last updated 4:54 AM UTC, 10/7/2026

 

 

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