As it stands, 42,but I'm hoping if my plans work out it'll be easier.
We bought a small, cheap, unfancy house with things that most people find offputting, but we'll probably have to work until we drop, so the idea is that if we have a small mortgage which is paid off ASAP then when we're older and getting properly knackered, we will only have to work a few days a week to keep things ticking over. The mortgage is also small enough that if we ever wanted to temporarily move for work, the rent we could get for the house would be at least double the mortgage.