Look at how close these two buildings are together! The completed one has been occupied for a few years now. Not sure if the building under construction was recorded/planned before people purchased their units in the condo tower, certainly I hope those buyers researched before signing. Either way, there a few along the way who should have stopped this mammoth screw up.
I'm thinking the buildings are no more that 9 feet apart at their closest, which is probably some ridiculous minimum in the code book - but that doesn't mean you should take advantage in this way. It's not good for the condo owners, it's not good for the future owners of the new building, and it's not good for anyone who even has to look at this failure.
I'm sure there are tons of dialogue and posts and news bits regarding this particular debacle. Another great post regarding a similar theme can be found here at hugeasscity.com. For sure, density is fundamental for a city to thrive. Though with density should come a heightened sensitivity to the space a building will occupy... with its neighbors.