They’ve doubled the size of that house. The build and refurb was £££ but in general, adding square footage is cheaper than buying it. They got the house for a comparable bargain as it was pokey and dated. It’s also on a bit of an iffy bend, iirc.
Her main house is worth about 1.5m.
She isn't as rich as many, many people in her home town. Hence not choosing private schools, but going for the new cars and handbags.
A lot of people around here have it all, seriously.
I don’t think the poster was being a snob. She was just pointing out that Kat’s house isn’t the biggest, poshest, most expensive house in the area and she is pretty averagely off for the local area. Their income is high but not enough to service private fees (plus extras) for 3 children on top of the lifestyle they lead. It wasn’t a criticism, it was an observation. Private fees for a day school are around £15k per year, per child, not including extras like trips, meals, uniform, exam fees etc. So more likely £50k per year on school fees for 3.
As other posters have pointed out, it is really common for London commuter parents with high salaries to move into well-to-do areas with the grammar school system in order to avoid private fees for multiple children.