Letting a room in your home to a lodger can be a good way to make extra money. However, you need to make sure that you've got permission to do this.
You need to know whether you are going to be a tenant who will be protected in law or a licensee who has very few rights in law. It's important that you understand your legal status in your new home.
Not everyone who pays rent for a room or a property is a tenant. Some only have a license to remain in that property and are “licensees”. Licensees don't have as many rights as tenants and it's much easier to evict them.