Perched at the very top of San Antonio Road in one of Yorba Linda's most prestigious and private enclaves, 3650 San Antonio Rd. offers 3,700 square feet of elevated living surrounded by breathtaking mountain views, total seclusion, and unmatched tranquility. This 6 bedroom, 3 bathroom residence includes a highly desirable downstairs bedroom, blending functionality with modern design in a setting that feels worlds away yet remains close to everything. With no HOA, you have the freedom to truly make it your own, while the San Antonio Society warmly welcomes new members to enjoy neighborhood events and community connection when desired. Behind its impressive presence lies a home that has been thoughtfully upgraded where it matters most. Paid off solar panels paired with four Tesla Powerwalls provide true energy independence and reliable backup power. Major system improvements include new piping throughout, a new roof, upgraded HVAC systems with new ducting, an electrical panel upgrade, and a whole house water filtration system, offering confidence and peace of mind for years to come. Inside, new flooring and carpet, LED retrofitting with smart light switches, and custom shutters create a clean, modern aesthetic that feels refined and completely move in ready. The outdoor spaces are equally intentional, featuring beautifully designed landscaping with mature olive trees and fruit trees that enhance the property's natural privacy and resort style ambiance. This is more than just a home. It is modern, efficient, private, and positioned at the very top of San Antonio where the views are expansive, the setting is serene, and everything important has already been done.