Sunnyside Manor, aka The Heintzman House, (c. 1817) is a designated heritage site owned by the City of Markham. It is a unique 30-room mansion embodying an eclectic blend of Classic, Georgian and Regency style architecture. Charles and Marion Heintzman (of the Heintzman Piano family) bought the house in 1930, undertook major renovations and were the last private owners to call it home. Now managed by a Board of volunteers appointed by Markham Council, it is rented for business meetings, community events, film work and weddings.
Yet, in 1959, after the death of the Heintzman’s, it was a candidate for demolition by the home builder rapidly turning the surrounding fields into what became a beautiful neighbourhood and close-knit community. If not for the efforts of a small group of residents who banded together to protect it, the House would have met the blunt force of a wrecking ball.
If you’re interested in joining the Board and contributing your time to fulfilling its mandate to preserve, protect and enhance the House while engaging with the Markham community, please contact Laura Gold at lgold@markham.ca.
You are also encouraged to follow the House on Instagram at @heintzmanhouse and Twitter at @HeintzmanHouse. For more information, visit: https://theheintzmanhouse.ca