It is not every building that can safely take a five-storey roof extension. The so-called “flatted factory” at 55 Holloway Head is one of a handful of multistorey factories built in the 1950s to house ...

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 ...

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 ...