I am bloody fortunate to have some money to put away, which I'd like to grow to pay off the mortgage in 15 years' time. I think that while I have a really low mortgage rate, and a lodger due to move in to cover my monthly payments, it could make more sense to grow the money over time, than put it into a house which isn't likely to grow much in value for a while. And I'd still have a big chunk to have to pay off later down the line.
So, if you could invest £100,000-£130,000 and not need to touch it for up for 10-15 years, where would you put it that would bring the best returns in the current climate, without risking losing all/much of it?
Grateful for all and any ideas.