If you look again, you will see there is no access to anywhere from the garage. It seems to be just a door at the front, a totally self-contained space.
As is the office, which I sort-of like as it would mean work and home are two very seperate spaces. Great for meeting clients at home.
It was me who spoke about the kitchen. I could well imagine someone tripping over toys while carrying a turkey through on Christmas day...I never thought I'd see the day, but a hostess trolley would be quite the boon here.