I am trying to sort out the plan of the extension myself,, i have been trying to be as creative as an architect, as the building is to replace a conservatory. i really want to fit in a utlity room. And i have just run out of ideas of how to be within planning laws of the size of the building and fit in a utility room, as well as use it like a normal room just for space. does anyone have a book they know of that has a nice lot of picture ideas for planning extensions, most are a lot of reading, i need pictures first.