It's the classic struggle of 'economic return' vs preservation of history.
As it stands, economics wins out 99.9999999999999% of the time. Fair enough, as the business community (or the private owner) has no real responsibility to respect or preserve history, and every legal advantage to preserve their financial investment. Again, justified, as not everybody (business or private) has a barrel of money to throw into restoring or even preserving a particular building to a reasonable historic standard. They want to use their property as intended, if they've spent the money on it. Put this further, if the economics add up to be able to profit from buying a particular building, tear it down, and build a new building, then that's business.
Economics wins pretty much every time, unless there is a will to balance the scales so that it's more in favour of preserving/restoring buildings that 'deserve' it (see: "scoring system") and allowing less significant examples fall to the will of economics.
The question is how to make that happen...
- You have to have a council that understands and appreciates the historical/cultural value of our older structures, as it has been stated that Halifax lauds itself to be an historic city - which it is... this doesn't need explanation.
- You have to have rules/regulations/incentives/etc that actually dissuades the improper treatment of historic structures, and ideally creates a good business case for preservation/restoration, or at least respect for the structures if incorporating them into a new structure (see Waverley Inn - so it's possible to do this).
- You have to have a business community that can get its head out of its own ass (pardon my English) long enough to see the daylight and to understand that development methods have changed in the past 50 years. There are better, more nuanced ways of development that don't fall under the classic formula of 'tear down old, build new'.
IMHO, the second point is the most important. There needs to be leadership by a government that actually understands the significance of historic structures in Halifax, and one that has enough confidence in itself to be able to go out there and make things happen, not one that continually knuckles under to the business community if somebody cries 'foul'. From Sam's intimations, it appears that we may have elements of both in our current iteration, but unfortunately it seems like the 'knuckle under' crew has the upper hand.