The designation of Willowbank as a National Historic Site of Canada will allow Canadians to better appreciate the built heritage that emerged in early 19th century Upper Canada and how it contributed to Canada's development as a nation. Willowbank's elegance and design make it a beautiful example of the classical revival architecture that characterized country estates of Upper Canada.

Overlooking the village of Queenston and the Niagara River, Willowbank is part of a small number of classical revival-style mansions built in British North America. The residence was constructed between 1834 and 1836 for Alexander Hamilton, son of a prominent and wealthy merchant, Robert Hamilton. The property is also unique as it displays "Picturesque" ideas of landscape.

Sitting high on an open lawn hillside, Willowbank is surrounded by a variety of trees, including willow trees, after which the Estate was named.

Today, Willowbank is owned by a group of Heritage Advocates who have opened a School of Restoration Arts which will teach the special skills needed to restore and preserve heritage buildings.