This idea was put forward by our first architect for consideration. The idea is to take the outline of the garage (original and new) on the east side and use this as a footprint to construct two new 'houses' to either side of the current house.
One of the main drivers of the design brief is to include more bedrooms. I think upstairs is probably the best place for the new bedrooms. Looking at the downstairs floor plan, one of the most obvious things to do at first glance is to build on top of the garages. Well what I mean by that is the two original garages immediately either side of the main 3 bay design of the house. We decide to engage a structural engineer to come and take a look at the foundations and it's good news. They're deep and strong enough to take a second level.