Converting your loft can be one of the easiest ways of extending your home, particularly if you just wish to add an additional bedroom. This type of extension, frequently incorporates a flat roof dormer, built under permitted development, although these can be unsightly, they remain popular as they provides the most space internally. Adding a loft conversion, in effect converts a two storey property into a three storey property, and this creates the need for a protected stairway, be aware that this may call for internal changes on the ground floor, where for example, a stairway terminates in an open plan living space.