I love the house, I would put Betsy in the dining room though and let her have the conservatory as her own little sitting room, then change the summer house into a “boys den” to give Seb some of his own space (he’d be back in the house at night though!)I don’t like her but I actually quite like her house, makes a change from all the boring bland a la Hinch grey everywhere
Plenty people use their dining room as an extra bedroom so I don’t know why she didn’t do that rather than having two sittings rooms