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519 Proton Place, San Marcos, CA 92078

$1.40M4bd · 4ba · 2,429 sqft
Lot 0 sqft•HOA $268/mo•Single Family Residence•
Active
•12d on market•MLS# 8N-2609182

Property 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.

Features & Amenities

FeeBuilt 2025

Property Details

Land Type
Fee
Year Built
2025
Property Type
Residential
Property Subtype
Single Family Residence
Parking Spaces
4
Garage Spaces
2
Cooling
Central Air, Electric
View
City Lights, Hills, Mountain(s)
City
San Marcos
Zip Code
92078
County
San Diego
Listed byUnknown Office, Gino Tinucci

Mortgage Calculator

Current Rates

$
$
%
Monthly Payment
$7,074.11
Principal & Interest
Loan Amount
$1,119,200
Total Interest
$1,427,478
Total Payment Over 30 Years
$2,546,678
This calculator provides estimates only. Actual mortgage payments may include taxes, insurance, HOA fees, and PMI. Contact a lender for accurate quotes.

Comparative Market Analysis

Residential Tier · 5 active · 5 closed

519 Proton Place, San Marcos, CA 92078

San Marcos · Single Family Residence

$1.40M
Residential Tier
Beds
4
Baths
4
Sqft
2,429
Lot
0 sqft
Year
2025
$/Sqft
$576
Pool: Yes✓
Spa: No✓
View: city✓
Garage: 2-car✓

Listed in line with the median closed sale of $1,439,900.

Price Position

Aligned with the market — fair pricing for the comps.

At market
Subject listed at $1.40M· $576/sqft
Total list price
Closed comps
vs closed median $1.44M
−$41K (−2.8%)
Active comps
vs active median $1.43M
−$26K (−1.8%)
Price per sqft
Closed compsinsufficient comp data
Active comps
vs active avg $/sqft $588
−$12 (−2.0%)

Active Properties (5)

Active Comparables

AddressCityYearBDBTHSqFtLotSzLP/SqFtLPDIMScore
1499 La Linda DriveSan Marcos1966432,5364,300$680$1.73M8085
1200 MulberrySan Marcos1946332,65239,204$641$1.70M6180
909 Woodhaven RoadSan Marcos2023432,2749,404$605$1.38M11580
591 Via Del CaballoSan Marcos2003432,3584,046$445$1.05M478
775 Old Oak RidgeSan Marcos1980322,503130,244$569$1.43M12876
Total: 5 · Average3.62.82,464.637,439.6$588$1.45M77.6
Median2,503$1.43M

Closed Properties (5)

Closed Comparables

AddressCityYearDateBDBTHSqFtLotSzLPSPSP/SqFtSP/LPDIMScore
1190 Mulberry DriveSan Marcos198909/24/2026442,67061,855$1.58M$1.43M$5340.9013887
1117 Vega WaySan Marcos201308/10/2026332,6808,276$1.80M$1.80M$6711.004884
828 Settlers CourtSan Marcos200307/27/2026432,73311,360$1.50M$1.52M$5581.024483
678 Gemstone DrSan Marcos201808/24/2026432,5503,300$1.13M$1.13M$4411.002581
948 Honeysuckle DriveSan Marcos199107/16/2026432,1185,662$1.44M$1.44M$6801.007681
Total: 5 · Average3.83.22,550.218,090.6$1.46M$1.46M$576.8—66.2
Median2,670$1.44M$1.44M

Market Analysis

List vs Sale $/SqFt

Sale Price Trend

Days on Market

Sale vs List Price

AI-generated CMA

This analysis was generated automatically from MLS data. For an in-depth, human-reviewed valuation, contact Joseph Sardella at josephsardella@gmail.com.