A century-old Berkshire estate on private grounds.

Built in 1913, the main house at Park Avenue carries the kind of presence that only time can give a building — a grand foyer with a sweeping staircase, covered porches that wrap around the exterior, and a sun porch that draws in the surrounding landscape. The property sits on more than 640 private acres, a scale that takes a moment to absorb.

The second residence, a carriage house steps away, adds a layer of flexibility rare in any market: it can serve as guest quarters, an office, extended family space, or something else entirely. Inside the main home, the butler's pantry off the expansive kitchen, the primary suite's sitting room and balcony, and the finished third floor suggest a house that was built to be lived in thoroughly, not just admired.