My PBL project connects with Social Studies which will be displayed by different types of rooms/housing.
Even in America, the housing styles are different. There are apartments, condos, mansion, duplexes and many other types that have altering room sizes. When looking at Native Americans, different types of housing are noticed, such as tee-pees and clay homes. Housing styles depend on the geography and climate of the areas.
Housing styles varied over time and advance as technology advances. For instance, in the past some homes were built out of stone like the historic castles that we can still see today. But now that technology has advanced, houses are made of many different materials and have a more solid structure, as per the advances.
The housing market in the future will be different from todays. Maybe homes will be able to talk with you, like many short stories mention. Maybe wifi will come free with the house. Maybe things that we can't even think of today will have happened and be incorporated into realty. Until the future comes, we may never know.