At the current rate of errosion, both air and water, whose house will be the last one to fall into the sea?

Question

I couldn't sleep one night and this thought popped into my head. d**n it.

Answer 1

To be the last house, would mean that every other dwelling was already under water.

Impossible.

What a pity you could not sleep.

We might have been spared another pointless question.

Answer 2

I just know it will be Gordon Brown's house.