Miami Keep on Building.

I've done a few posts on the lack of progress at the site.
http://miami.curbed.com/places/brickell-flatiron-park

For reference, the two properties being swapped. Both about the same size.

For clarity they're only swapping the tip of the triangle in the second picture. Most of the triangle across from where 1100 Milecento will be will remain part of the Flatiron project.

Does this require any redesign of the southern part of the building? I mean, will the sharp end of the building have to be cut off to create more space on the ground for the park.
If so = It could ruin the elegant slenderness of the building, but at least we would be saving more of the park.
If not = Then they may have just got free buildable land by giving away a little pointy piece that they were going to put a public plaza on anyways, according to the old renderings.

Wasn't the park temporary until they started building?

I highlighted the areas being swapped. It does looks like they were able to swap a piece of land that they weren't going to use anyway for more buildable area. Although since that area falls at a funny intersection you could argue that it being in control by the city is a good thing.

Also I don't really think its fair to say that they got it for free. The space is about 3000 sf. They could have easily put a single story retail structure on that site. And the same could be said in reverse since in reality no one ever uses that corner public lot except as a toilet for their dog.

The Flatiron in New York has a single story retail structure that goes to the absolute tip of its site. The highest paying tenant they can get for it, despite the Madison Square location, is a cell phone store.

An awkwardly shaped single story retail structure is pittance compared to the amount of buildable square footage they just got for nothing.