The last payment on one of my mortgages is due to be paid in June this year. The net cost of borrowing is currently around 2.3% which compares favourably with the margin facility currently costing about 2.9% (and compounding monthly), the yield on good quality short term bonds at around 4-5% and there are many equities which offer yields above 4%.
The other factor in favour of taking out a new mortgage is that the only storage space available for the title deeds is a filing cabinet at home – there is no room in my safe deposit box. I understand that lost title deeds cannot be replaced effectively making the property unsellable and unmortgageable. Taking out a new mortgage mitigates that risk.
The negatives are (i) the interest rate is a floating rate and will cost me more as interest rates rise and (ii) it's a P+I mortgage which will have an impact on cash flow. That said, it's a small property and the mortgage will be correspondingly small.
I'm currently inclined to take out a mortgage for a relatively small amount ... assuming the bank will lend to someone with no employment income.