I was just wondering if you need a landlord's gas safety certificate if there are no gas appliances in the rented accommodation. Say you rent a room in you house but the gas boiler is in the kitchen? Or say the house has a granny annexe that you rent out? A self contained one with or without a connecting door. Without a connecting door I would have said not since it's like a separate house (but with shared CH). With a connecting door I'm not so sure.