That sounds lovely @Gettingbysomehow, particularly the hobbies room 🙂
Our current house was a huge downsize for us (there's just two of us at home now so no longer needed 4/5 bedrooms), but the layout and purpose of the rooms didn't suit our needs at all.
We hated the fact that the kitchen was in a dark room at the back with a horrid extension stuck onto it by a previous owner in the 1990s. It was so dark you could barely see your hand in front of you if the lights weren't on.
We took the radical decision to move the kitchen into the front of the 'cottage' (a former agricultural building), having first opened it up into the tiny second reception room that adjoined it. This works so very much better as we no longer have to trudge through two living rooms to get to the kitchen with bags of shopping! It's also a bright, cheerful space.
The dark back space has become our dining area - although we opened it up into the awful extension, which we've rebuilt with massive new windows and that now lovely, light-filled space is where we have our sofas.
In addition we carved off a bit of one end of the darkest room to create a rear lobby and cloakroom by the garden door.
We also altered the upstairs layout completely, creating a hall where there wasn't one previously and made the rear bedroom with garden views our room.
These changes have revolutionised the way we use our home!