Anonymous wrote: I am French and when we briefly moved back to Paris, the only acceptable option for us was international schools with a joint British and French curriculum. There are a lot in Paris. We did not actually want the American School - not the right vibe, you're entirely correct
I'd look at any of the international schools in London that have the International Baccalaureate curriculum, which is recognized and respected the world over. If you're going to stay in the UK for years, you might want to do IB, so your kids can attend any college anywhere in the world. Please don't worry about future curriculum discrepancies for IB, the level is on par with APs, and if there are differences here and there, it's nothing that good tutoring can't overcome if you move to another country.
Enjoy London!!!