The new UI is a step in the right direction, but in the house it's a half measure that ultimately makes navigation even more unintuitive. It's just confusing to have to memorize which icons lead to which areas. Each room should just have it's own icon that is always present, not this icons leading to new icons, which then lead to new icons thing. Just going to bed at night is such a confusing chore.
If that can't be done (too many icons on screen?) then splitting the house into two parts would work, like icon 1 leads to icons for Bedroom, Alex room, bathroom, and kitchen and icon 2 leads to the 4 girls rooms.