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Originally Posted by someone123
Does any Canadian city have a system of heritage preservation that includes transferable development rights like NYC? They seem to align economic incentives in a way that preserves this public good, while just about every other policy I see doesn't do this. There is a Canadian tendency to either do nothing or implement some kind of rule or subsidy.
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The Spire condo built in the early 2000s in Toronto was approved using air rights. Today, there is no reason to purchase or sell air rights. The two things that make it highly profitable in Manhattan are strict heritage alteration rules and capped residential densities. 10 times residential coverage was it for the longest time (I think it has been loosened a bit) By contrast, Toronto approved a 95 storey tower end of last year with a 65 times coverage and just about any heritage building owner can apply for a 60 storey plopped on top with a good chance of a revised version getting approved.
Planning in Manhattan considered a height limit redundant with only 10 times lot coverage for the deep lots on West 57th. Some will call it a resounding success. Others will say they miscalculated. There's not enough on site densities to build tall supertalls and heritage building owners with unbuilt densities under the maximum cannot do anything with it as tearing down or adding floors is flat out not allowed.
These billionaire row supertalls are a mess with the worst layout imaginable and all sorts of functional issues due to their extreme forms. I can still see them retaining status even if they become completely uninhabited. It's not like the majority of units were purchased as primary residences.
IMHO, that's how you build a neighbourhood. Every lot has as of right density to use or sell with few opportunities to grow it through rezoning. Not this by the lot zoning that establishes a new base policy and new neighbourhood density for every surrounding lot to push that new precedence even higher. It can only lead to overcrowding and overtaxed amenities.