If you are a sole trader then your apartment is your trading address. I would not have thought this a wise thing to share with your letting agent, but I can't imagine the Inland Revenue would..there are a couple of clauses about not running a business from a rental property I believe. A girl who posts on here, Sammy, could probably tell you more about how that works.
If you plan on claiming for condoms, put escort. If you plan on claiming for creams, put whatever you want.