Official Honeywell evohome/Round Thermostat integration (EU-only)

[zxdavb (David Bonnes)]

Then see this:

[Workaround] Evohome multiple concurrent locations

All: You can have multiple locations by creating a custom component out of the official evohome integration. You do that, broadly, by copying the components/evhome folder to (say) custom_components/evohome_cc (the new folder must have a different name). But note: every time you upgrade HA, there is the potential for the official integration to have been updated. Whenever that happens, you have to replace your old custom component with the latest version.