The size and shape of an extension is a balancing act. For the new space to interact in harmony with the existing house, you will need to consider form, cost, and practicalities. The roof style in ...

Kettering Library opened in 1904 and expanded in 1913 when an art gallery complex was built on the side of the main building.

When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: Chris Foster. Design: Christopher Jeffrey The size and shape of an extension is a ...