Peter Grant Mansion – Largest Abandoned Mansion in Canada

Exploring the Peter Grant Mansion: Largest Abandoned Mansion in Canada | $25,000,000

Where do I even start with this one? I can start by telling you that Peter Grant wanted this to be the largest mansion in all of Canada

Once completed it would be a monster-home that dwarfed everything else in the area, possibly the country. The massive mansion was supposed to come complete with a small golf course, an art gallery, office area, swimming pool with a waterfall, squash court, two elevators, a giant hot tub, a small gym, a boathouse and 43 acres of land.

The home was built by a Canadian forest industry company that at its peak employed nearly 600 people in Ontario alone, and 715 across Canada.

The Company operated six mills – two in Ontario, one in Alberta and two in South Carolina – and was North America’s third-largest maker of oriented strand board (OSB), a product similar to plywood that’s used to build walls, floors and roofs.

In 2005 he started work on the mansion, which was to be used as an office complex, living quarters and a showcase for his products. Located in Northern Ontario, about 140 kilometres north of North Bay, Ont, the 65,000 square foot house would sit on the shores of a popular lake

However, a strong downturn in the global economy in 2007 hit the man hard.

When the housing market in the United States began to collapse, it dragged down OSB prices and forced the man to cut production. Within two years, OSB prices had fallen by two-thirds and his sales had dropped from $500-million to $184-million. Even worse, the downturn came just after the company had launched a costly expansion project at two mills.

The company tried to keep going but by June, 2009, it succumbed and filed for court protection from creditors, citing nearly $600-million in debt. The mills have since been sold and all remaining assets are up for sale… including this house.

They were forced to abandon construction on the mansion in 2008 so it hasn’t been completed yet, leaving a partly finished relic. At the very least, the property will require $1 million in upgrades to make the house liveable.

As part of the liquidation process the house has been on the multiple listing service for about a year now at an asking price of $25-million.

As of 2020 it is not clear who actually owns this property however news articles from June 2018 state that it is owned by a Toronto area company who also owns another vacant property in the same town.

My experience exploring this huge mansion was memorable, I drove approximately six hours to the location, arriving about two hours prior to sunset, which is why the video has so many great colours.

I focused my time on the first day on strictly shooting video, exploring and navigating the house. On day two I woke up with the sunrise and returned to capture my photographs and document as much as this mansion as I could.

On night one after my explore was complete I stayed to capture timelapse footage of the sun setting and the night creeping in, followed by a photo of the mansion, lit by a nearby street lamp and the bright stars over Lake Temiskaming

Exterior Views of Canadas Largest Abandoned Mansion

Inside the Abandoned Peter Grant Mansion

Canadas Largest Abandoned Mansion at Night

inside canadas largest abandoned mansion peter grant mansion

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3 thoughts on “Peter Grant Mansion – Largest Abandoned Mansion in Canada”

  1. Very nice pics but i live here & it sure does not look like that now,,, Alot more smashing & painting & all the bullet proof windows have been shot. Then theres the people in town that dont have a job they are poor & forced to watch all that Some people have gone & salvaged stuff & i say if you need 1 & its there go get it

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