These are the projects that have been officially acknowledged so far, per the CBC:
The Sisson Mine, for critical minerals, in New Brunswick.
The Crawford Nickel project in Ontario.
The Ksi Lisims liquefied natural gas project in British Columbia.
An Iqaluit hydro project.
The Nouveau Monde Graphite Phase 2 project in Quebec.
The Northwest Critical Conservation Corridor in northwest B.C. and Yukon., which could include critical minerals and clean power transmission developments in the area.
The North Coast Transmission Line in northwest B.C.
Certainly all industrial infrastructure, but not necessarily for fossil fuels.
Best to remember that it wouldn't really be a house - it would be a high-security government facility that the PM happens to live in.