Wow! That house is huge and has the potential to be spectacular! I'm not sure about the black walls Freya is planning, though...
Is Tom a builder by trade? When I first started watching Freya's videos, I'm pretty sure he was in the restaurant business? Seems to be in the building trade now, though, which will come in useful for that BIG renovation.
She is a full-time Youtuber as far as I know (I think she has mentioned this in videos before). I don't think she does anything else on the side.
I also get the impression that she has never really had money worries and/or is very savvy with money. She's been a full-time Youtuber for quite a while now, even though I wouldn't count her as having very high views on her videos, or doing a whole lot of collaborations (maybe she does and I just haven't noticed as I don't watch all her videos). And she has always done a *lot* of hauls. At least now, with that big house, she has an excuse for the endless hauls.
But yeah, don't think money is a problem. Also, her parents house is pretty impressive from what she has shown.