Mr. Brian O'Mahony:

In essence, somebody who had a cottage like that should get a home energy assessment done because that would give the person a pathway to get to B2, whether that involves single measures or taking things in one step. We are probably talking about a traditional or heritage build. There may be issues around the type of materials that can be used. They would not be the same as the materials that can be used in a building constructed from concrete or timber. I would advise to get a home energy assessment and understand the pathway to upgrading, and options will be presented to the homeowner.