Sell up if you think prices cant go much higher, clear/dramatically reduce your mortgage on PPR, take out an insurance policy with the money you save on mortgage repayments if potential death really bothers you. Start investing in low-medium risk diversified assets with money you'll be saving on your mortgage repayments,your family will be guaranteed to have a home and lump sum/income if the unlikely happens. if you decide to keep property get life insurance anyway.do you not pay into a pension?