Welcome to 320 Whitmore. This stately farmhouse estate (Fieldstone House, circa 1853) stands as one of the most historically significant and prominent period homes in Southwestern Ontario. Located in the highly sought-after Old Colonial Acres, this 19th-century residence is among the last remaining original stone houses in Waterloo Region, representing a rare and inimitable piece of Ontario's architectural history. Lovingly and comprehensively restored, the home has undergone extensive interior reconstruction - re-planned, re-framed, and modernized within its original stone exterior - delivering the comfort, layout, and livability of a new build while retaining its historic roots. The enduring fieldstone construction (with ~2 ft. thick walls), original doors and millwork, period staircases, and hand-hewn beams, speaks to a level of authenticity rarely found today. The home unfolds across multiple wings, offering remarkable main-floor scale anchored by grand living spaces and a private primary wing. The sheer size of the main-floor footprint represents a level of construction that would be prohibitively expensive to replicate today. At the centre of the home, a historic conservatory offers sweeping views of the park-like grounds, while an upper-level belvedere provides a scenic vantage point for stunning sunsets set against century-old maple trees. A stately period porch frames the front entrance to the home, complete with original millwork. Set on one of the largest lots in the neighbourhood, the property offers a true estate setting - with expansive front and side yards that make you feel like you're in your own private park. Behind the house, the large, sun-filled backyard is anchored by a saltwater pool and hot tub - perfect for quiet moments and meaningful gatherings. This is not simply a home; it is a landmark. A living piece of Waterloo's history and a once-in-a-lifetime opportunity to steward something truly irreplaceable.