A three-year second mortgage loan, bearing interest at 11% per annum, made by a non-resident to a Canadian partnership provided that on maturity the lender would receive, in addition to principal and interest, 10% of the increase in the value of the building, if any, over the three-year term as determined by independent appraisal. In concluding that any disposition of the loan during the term of the loan would be a disposition of "real property situated in Canada" for purposes of s. 115(1)(b), the Department indicated that "the non-resident's interest in the building, which includes a right to participate in the appreciation of the building, is not 'an interest as security only' for purposes of s. 248(4), so that the mortgage loan was an interest in real property.