Re: Still building mud and sticks.
Wires (including 12v and Cat6) should be trunked - you shouldn't need to dig channels in the wall to add or change wiring.
Agree. But that would put up the install cost, and we all know how builders like to install the best value solution...
No UK house should need central heating, sufficient insulation would be fine in our climate.
Er, and where do you live? My gaff is less than 10 years old in the South East, has up-to-date insulation, yet it still gets uncomfortably cold in the middle of the day & night in winter when the heating isn't on.
The flipping kitchen sink should not be under the flipping kitchen window; we have dishwashers these days.
You have a dish washer. I don't. My household is small and we'd either run the dishwasher half empty (or more) or have to buy more kitchenware so we could use the dishwasher every three or four days.
A washing machine would be better placed in a bathroom than a kitchen if there's no utility room.
I can see the logic, but I'm not sure about safety.