Perched atop the prestigious Cowan Heights enclave in the North Tustin Hills, this extraordinary custom estate captures sweeping panoramic mountain and city views while offering an unparalleled lifestyle of privacy, luxury, and timeless elegance. Ideally situated on iconic Sirrine Drive—one of North Tustin's most coveted addresses—this remarkable residence is a rare architectural masterpiece. Spanning approximately 7,292 square feet on an expansive 35,100-square-foot lot, the home features 6 bedrooms and 5 bathrooms and lives primarily as a single-level residence, with four oversized bedrooms, including the luxurious primary suite, conveniently located on the main floor. Designed as a private wellness retreat, the primary suite features its own indoor spa, hot tub, and dedicated sauna, creating a tranquil sanctuary within the home. A grand entrance welcomes guests with a dramatic fountain, cascading waterfalls, lush landscaping, and majestic palm trees, setting the tone for the exceptional living experience that awaits. Beautifully renovated living, dining, and family rooms seamlessly connect to expansive wraparound patios that frame breathtaking 180-degree mountain and city vistas. The refreshed chef's kitchen is thoughtfully designed with premium finishes and an inviting eat-in dining area, making it ideal for both everyday living and effortless entertaining. The resort-inspired backyard is an entertainer's dream, highlighted by a custom waterfall grotto spa with a built-in lounge and TV area overlooking spectacular panoramic views. Thoughtfully designed landscape and architectural lighting create a stunning ambiance that transforms the property after sunset. The upper level offers exceptional flexibility with an additional bedroom, private executive office, and an expansive game room complete with a full bar and unobstructed views—perfect for entertaining, working from home, or multigenerational living. Additional features include hardwired security, integrated sound systems, and access to award-winning Tustin schools. Extensively renovated and completely turnkey, this exceptional Cowan Heights estate offers a rare opportunity to own one of North Tustin's premier view properties, where sophisticated design, resort-style amenities, and breathtaking scenery come together to create an extraordinary place to call home. Completing this remarkable offering is access to top-rated Tustin schools, making the home just as practical as it is breathtaking.