If there is easy access to the roof space in your property are you utilising the space effectively or is it just a family storage area where outgrown toys, family mementos and Christmas decorations live?
The space that is in most lofts is huge especially if the roof construction is such that a lot of the loft has a good head height. In fact, if this is the case it may be worth asking an architect to draw up plans for a loft conversion giving you one or even two more usable rooms. Even if the loft is not suitable to b used as a room with a little thought it can be made into a useful space.
In some older houses the loft entrance was made quite small so getting the entrance made larger would be helpful. Usually this is not a difficult task and can be tackled as a DIY project or given to a builder to complete. Once the entrance is larger a proper loft ladder can be installed making access to the roof space much easier. The pull down ladder retracts into the loft once used and can be fitted to the loft hatch.
Getting the loft boarded out so that it can be walked on without the danger of falling through the ceiling of the room below is essential if you are going to get full use out of the loft space. Make sure that adequate loft insulation is in place before boarding out.