Ms Marion Jammet:

It is also about starting early. It can be difficult if you think about sustainability at a later stage. If a building is designed to be more sustainable earlier, it does not necessarily have to be more expensive. A lot of this, as I said, comes back to having leaner design, perhaps using less material, which in itself can reduce cost. I am not saying it is exactly the same here as in France, but it does not always have to be more expensive. In Bordeaux, for example, Grand Parc was a social housing apartment block that was retrofitted. There are currently 530 accommodation units there. I think the cost of renovating that unit was about a third per unit what it would have been if the building had been demolished and rebuilt. There are things like that that we need to consider. It is the same in Ireland. I know it is not housing, but looking, for instance, at the Treasury Building, which is not too far from here, steel was reused, which was cheaper than sourcing new steel. It therefore depends also on the material and on the value of the material in the first place.