One woman can work as a prostitute from her own home without breaking the law, if that is what you mean. A brothel needs two or more women working at the house.
All subject to council regulations of course!
You can run any business from your home providing the council approve and there are no covenants on your deeds or lease preventing it.
Most 'escort' agencies are running prostitutes, but not all. They get round the law by confirming that the lady makes a private arrangement with her client(s) of which they have no knowledge. This prevents them falling foul of laws concerning the control of prostitutes.
If you want to run a simple ecort service, then fine, but be aware, that as with genuine masseurs, you will get a lot of people who think 'extras' are up for negotiation.