Spacious and expensive house but bad layout, how can I rejig at minimal cost?

[JemimaDucki]

A house has come up in the area we are looking to move to. It is at the top top end of our budget and we cannot afford much more for renovation, maybe 15-20k max. Quick search reveals that the house is about 20 years old so shouldn't have any structural issue. This house ticked the boxes for what we want for house space, outdoor space, cul-de-sac location, schools, etc. But, it doesn't make me feel like I want to live there (admittedly I haven't viewed yet, maybe an actual viewing will change my mind). There are a few issues here:

1. the 1st floor has awkward layout, 2 rooms are long and narrow, 2 rooms are single. So out of the 6 rooms, only 2 are proper double. For a house in this price bracket I am expecting it to have more than 2 doubles. Also i particularly dislike narrow layout. I am also guessing it will be quite dark there as it all walls and doors. My question is is there any way to re configure the layout (cheaply) to have more double room, even if that means end up having only 5 rooms.
2. how can I let more light come into the 1st floor?
3. the kitchen diner living space is huge, 10+m x 5.5m. But looking at the photo, it doesn't give the feeling of spaciousness, in fact, it looks very crammed. This kitchen and the 3 ensuites upstairs are I assume recent upgrade, the kitchen has new gadget, quartz worktop, pop up extractor fan etc so it will be silly to rip it off. I am guessing the price tag include these renovation as its immediate neighbour sold for 750k early this year. So the question is, again, how can I partition this space to have comfortable kitchen, living and dining areas?
4. how to decorate this kitchen diner living space so it doesn't look so soulless, I can think of whitewashing the floor but nothing else comes to mind.

The price is at the top end of the market for this town, maybe slightly overpriced even, it has all the space but it is somehow lacking in character. (first world problem, I know but please don't shoot me)

I live about 2 hour from this house and am looking to move to this house to be nearer family. I will only view take the hassle to view if I have a plan of how to make it work.
Thanks for reading. Suggestions welcomed!
www.rightmove.co.uk/properties/113751593?utm_campaign=property-details&utm_content=buying&utm_medium=sharing&utm_source=copytoclipboard#/&channel=RES_BUY

It's a huge plot, so in time you could get it how you wanted. Some big cheerful rugs the living end of the kitchen and less grey and will help a lot.
I think the way it's staged as a kitchen and tv viewing room makes it feel so unwelcoming, as whoever is cooking is being ignored for the TV rather than it being a nice chatty cooking and entertaining space.

And obviously rip out the carpet in the over garage bathroom.

Hmm knowing that area the barn behind I think is the swimming pool andnparking for it in front so don't think the barn behind is an issue. I don't mind house, office room hasn't got building regs otherwise they would classify as a room. Otherwise I think you could make kitchen work by using less sofas and not as dark kitchen cupboards. Is a house in Hillmorton worth 900k, personally no. But wouldn't worry about school catchment. I mean if you can afford 900k you surely aren't thinking of sending them to Ashlawn? The grammar schools especially Lawrence sheriff (is it still boys only?) are well regarded and private schools available etc. Perhaps looks slightly further afield on that budget as some lovely areas within half hour or so.