1763 -- The Treaty of Paris ends the Seven Years War between France and Great Britain.. France cedes Quebec, Isle St. Jean and Isle Royale (Cape Breton) to Britain. For book keeping purposes, the latter two are annexed to Nova Scotia.763 -- The Treaty of Paris ends the Seven Years War between France and Great Britain.. France cedes Quebec, Isle St. Jean and Isle Royale (Cape Breton) to Britain. For book keeping purposes, the latter two are annexed to Nova Scotia.
1 Adding a basement to an existing house can cost $30,000-$70,000 or more, depending on the size of the existing crawlspace or half-basement or if the house is on a slab foundation, and how much of the work is do-it-yourself and how much is done by contractors.
1 A finished basement typically includes all of that plus flooring, walls, ceilings, drywall, windows, and additional waterproofing and more in order to provide the desired living space. 2  Overall, a basement adds about 3-4 weeks to the new-house construction schedule. Having a prefabricated safe room (a welded steel box, a steel skeleton with steel planks or a prefabricated unit that is bolted together on site) installed in a basement can cost $3,000-$20,000 or more, depending on materials and size.