There is a wide range. I know you had evidence that saw it having a much more modest initial cost, but ultimately, at full operation, it would be a $55-million annual impact, which would be offset by about $14 million more than that in tax revenues. That was based, in the Deloitte study, on 22,000 properties in the national register. Right now, there are about 13,000 properties in the national register.
That said, there are other estimates that go a little higher and some that go a little lower. The initial figure I received from earlier work that the department had done was about $44 million, but that was a bit dated, so the $55 million, to me, seems reasonable. Of course, this is a hypothetical guess on what the uptake will be. The highest figure I've seen is still well short of $100 million a year in terms of impact on the fiscal framework.
By contrast, you have evidence that the current parliamentary renovations, the House of Commons renovations that are taking place in West Block, are going for about $3 billion. Centre Block is projected to be about $3 billion. Just on those buildings alone, you're talking far more significant costs. We're talking about a program here that will benefit the entire country that is a small amount of that, and all the evidence shows will actually return money, return additional funds to the fiscal framework.