Mortgage is finalized

Finally signed the mortgage documents with RBC Royal Bank this morning. They don’t have the best rate. But for me, this is just temporary measure for the next two years until I got the house demolished and rebuilt. I would like to consolidate the mortgages by the time the house is built so that I can have all the money borrowed for construction and the initial property purchase all together. RBC did a line of credit for 65% of the property value and the remain 15% as an open mortgage. Not bad, this way, I can pay interest only on the line of credit part for the next two year. This should allow me to have more capital for the construction rather than paying more into the principal. Consider the mortgage rate these days, (3.5% for the line of credit and 4% for the open mortgage) I would rather have all my money in investment, which is earning better than the mortgage rate.