If you are in the process of selling your home and you only have one bathroom then you may consider adding another one. Having a bathroom upstairs and downstairs can often make a house more saleable as people like the fact of having both, especially when visitors are round as it means they do not have to go upstairs.
Adding a bathroom may make your house more saleable but may not add a lot of value so you need to think carefully about how much you are going to spend on it before you start. Ideally all you need is a toilet and a sink. Many of us have unused space under stairs or in a garage that could quite easily be converted in to a small bathroom.
Don’t be afraid to shop around for quotes to find out how much it is going to cost you. If you are thinking of selling the property then you need to not get too involved in the fixtures and fittings and rather than going for expensive ones, chose some that are more within the budget range but still look nice. This will keep the overall cost of the bathroom down.