Welcome to an extraordinary 40-acre retreat that embodies natural beauty, in its pond and stream, tranquility, and privacy. Nestled in the heart of Caledon close to top schools and a wealth of recreational activities including tennis, golf, hiking, and biking this property offers a unique opportunity to celebrate life in a serene setting. This custom-built masterpiece showcases meticulous attention to detail and high-quality features throughout. Step inside to discover an open and bright layout that boasts breathtaking 360 views. The living room features a floor-to-ceiling wood-burning fireplace, creating a cozy focal point for gatherings. The gourmet kitchen flows seamlessly into the family room, providing an ideal space for entertaining and family time, with easy access to the outdoor patio and inground 8-person spa with waterfall. The main floor also includes the primary suite, a dedicated work-at-home office, a convenient powder room, laundry room and direct access to the three-car garage. Ascend to the second floor, where you'll find two additional bedrooms with a balcony, deck and a full bath. Also on the second floor is a legal self-contained one-bedroom lock off apartment with a private entrance that offers a sitting area with a wood-burning fireplace, an ensuite bathroom and full-size kitchen. The lower level features an 8 1/2 ft ceiling with a full walkout and polished concrete hydronic heated floors, encompassing a games room, home entertainment area with a propane fireplace, a workout space, a three-piece bathroom and a wet bar with a granite counter, perfect for leisure and relaxation. Equipped with top-of-the-line mechanics, including a 3 and 5 ton (new in 2025) geothermal heating and cooling units, 400A electric service and highly rated water treatment and filtration system. This home has been designed with relatively easy floor plan alterations to suit your family’s needs. For example, the second-floor apartment can be transformed into a massive primary suite. The 2nd floor bedrooms can be expanded by enclosing the balcony and/or enclosing the existing deck. The main floor primary suite can be reconfigured to expand the sleeping area, include a walk-in closet and larger ensuite bathroom The kitchen/family room has been separated from the living room with a non-weight bearing wall that can be removed to create an open concept kitchen/Livingroom. The property comprises of undulating hills, a pond and a stream that meanders across the property and terminates at the Humber River. The private forest includes many varieties of mature trees including Red Maples, Sugar Maples, Red Oaks, Bur Oaks, Cedars Balsam fur, Hemlock, Fragrant Sumacs, Blue Beach, Tamarack, Black Cherry and White Pines to name a few. Four primary private trails are maintained and are easily accessible on foot or with an ATV across a culvert and walking bridges. This home would be wonderful for large or small family, multi-generational, work from home, B&B or apartment rental with endless possibilities for different lifestyles. This property is a true testament to modern living.