Camillus Glynn (Fianna Fail)

Regarding a comment made by Senator Cannon, while I accept that the term "normal resident" is not contained in the legislation, section 4 states: "his or her sole or main residence". Reverting to the example of a house built by a son or daughter in a cottage garden, the old house is the main residence of the parent or parents while the new house is the main residence of the son, daughter or so on. When the parents pass on and the son, daughter or so on becomes the owner of the old residence, does that residence become liable for the charge? I believe this to be the point.