Someone I know has a house with no CH, no hot water, and no kitchen to speak of (just an ancient sink).
They've been quoted £9000 to install a 'wetroom' style of bathroom with electric shower, and fix the water supply to the kitchen sink (as it's just a trickle). That doesn't include a CH system or new kitchen, but does include under-floor heating in the bathroom ('to stop the water freezing on the floor').
That seems a little high to me. What's a more reasonable quote for the work?
And how much ought it to cost to fit a conventional bathroom and a hot water supply? (The owner seems to have a fixation on having a 'wetroom', even though at present there is nothing; they also don't like gas although there is a supply to house.)