Firstly, Renovations is what gives a new and fresh feel to an existing house. It makes a house more homely anywhere.
Secondly, Restoration is to upgrade and re-beautify an existing house. Often restoring the old into the new.
Thirdly, Additions are often required for more space. Possibly for a growing family or adding a garage.
Fourthly, a room with a view is always exciting or a rooftop entertainment area above the garage.