Having work done to your house can be extremely upsetting, but for most common things the ends do easily justify the means.
There will be a point in the middle of the process when there will be rubble in every direction and everything in the house is covered in a film of brick dust and you will wonder why you started the whole procedure in the first place.
But be strong in your resolve, according to a recent Sunday Times article a loft conversion can easily add 15% to the value of your home and in some extreme cases an extension can even add up to 50%.
When you consider the average property price especially in cities this suddenly becomes a no lose calculation.