David49
There is a flood map of the UK if it was mandated to build at least 1 metre above the highest known flood level that would cover most of the residential flood risk, the cost is only a few courses of bricks in the foundations.
As for existing property, I remember York flooding a few years ago and proposals to divert the River Ouse, it would probably cost less to move York or at least the riverside properties.
People make a lot of fuss about flooding on the Ouse at York, mainly because it reliably happens every year and provides easy photo opportunities.
The people of York are quite used to it. The premises that flood every winter, are flood resilient and only need hosing down once the floods recede to be back in business.
I have family living in York. MY DiL's family have lived there for over 70 years. They are used to it.
As for the flood map, what a lovely idea, if only it was implemented. In my local authority, once you have removed Green Belt land and the AONB, more or less, all that is left is flood plain, and niceties about having enough courses of bricks to get the new houses above the flood level bring no joy to those people in existing houses, whose houses, now flood bcause of the new houses on the flood plain.
As for the number of courses needed, now that we have been told that a planned new reservoir will raise the ground water level by 1 metre, these new houses will need a whole new staircase and the 'ground' floor of the houses will need to be nearly 2 metres above garden level.
