32.4. Where a taxable supply of an immovable includes the provision of an immovable of which part is situated in Québec and another part is situated outside Québec but within Canada, for the purpose of determining whether a taxable supply of the immovable is made in Québec and determining the tax payable, if any, under section 16 in respect of the supply,(1) the provision of the part of the immovable that is situated in Québec and the provision of the part of the immovable that is situated outside Québec are each deemed to be a separate taxable supply made for separate consideration; and
(2) the supply of the part of the immovable that is situated in Québec is deemed to be made for consideration equal to the portion of the total consideration for all of the immovable that may reasonably be attributed to that part.