Welcome to 9 Flaherty Lane, a breathtaking custom estate available for lease in one of Caledon's most prestigious enclaves. Set on 10.6 acres and backing onto 50 acres of conservation land, this residence offers a rare opportunity to enjoy resort-style living in complete privacy. With over 13,500 square feet above grade and more than 20,000 square feet in total, the home provides expansive space, refined finishes, and a lifestyle of unmatched comfort. Inside are five spacious bedrooms, each with its own ensuite, including a luxurious Owners Suite with dual his-and-her ensuites. A private guest suite on the lower level ensures comfort and discretion. Soaring ceilings from 10 to 21 feet span all three levels, with dramatic open-to-above living areas that flood the home with natural light, enhanced by a bespoke solarium and sunroom. Signature features include a two-level mahogany library with spiral staircase, a home theatre, a retro 1950s-style diner, and a gourmet kitchen with a 60" Wolf gas cooktop and oven. The five-car garage, multiple fireplaces, and nine geothermal systems ensure both luxury and efficiency. Outdoors, enjoy a spring-fed one-acre pond, a gazebo, and a designer patio with custom railings overlooking the water. Additional highlights include a high-capacity well pumping 120 litres per minute, an oversized septic system, a new roof completed in 2024, and a 16-camera Telus security system. Built to the highest standards with custom materials. Whether relocating or simply looking for a private retreat, this estate offers an exceptional experience.