I think people forget how much downtown's total office space grew during that period from warehouse conversions. If the zoning hadn't of changed, we might have had more office towers go up.
AreBe was certainly right about how much companies want their name on a building in bright lights! I've always seen the southcore office buildings as being slightly taller "AreBe Centres."
That assumes that a lot of the tech and ad companies which reside in those converted loft would want class AAA space in BCE place. My assumption would be that they don't.
I actually think we've developed an incredibly healthier office market over the last decade with sub-cores within the core.
MINT - will continue to be prestige office space
SouthCore - has been able to attract tenants that perhaps can't afford MINT (Telus for example), the RBC building
The Allied Terrotires - start-ups, ad agencies, PR firms
As for the "let's all smush" 3 40 story buildings into one super structure - the world doesn't work like that.
And for those who are concerned about our lack of construction of tall towers - its really a north american thing. In North America - only 15 office only buildings have been built in the last fifteen years above 700 M (including Bay Adelaide).
Height Floors Year Title City
1,200 (366) 54 2009 Bank of America Tower New York City
1046 (319) 52 2009 New York Times Building New York City
975 (297) 57 2007 Comcast Center Philadelphia
844 (257) 52 2012 Devon Energy Tower Oklahoma City
806 (246) 54 2005 Bloomberg Tower New York City
781 (238) 42 2003 Goldman Sachs Tower Jersey City
764 (233) 48 2009 Duke Energy Center Charlotte
755 (230) 47 2001 383 Madison Avenue New York City
749 (228) 44 2009 Goldman Sachs World Headquarters New York City
745 (227) 35 2007 RSA Battle House Tower Mobile
743 (227) 54 2010 Blue Cross Blue Shield Tower Chicago
740 (226) 44 2010 200 West Street New York City
724 (221) 49 2004 Times Square Tower New York City
Those are all in the States - in Canada there's the Bow and B/A.