Hey Brent,
Thanks for sending this over. You know, maybe its because I started my carreer as an architect, but I really love seeing solutions that creative folks come up with around the world. A lot of times we look at these designs and ask- well if it works in Malaysia, then what about here? Truth be told, there is one primary reason for it:
1) Money. There are so many countries around the world where land is limited. Of course as density increases, land values skyrocket. We have that condition in limited areas of a half dozen cities...maybe.
So for the type of structure that was shown in the renderings, you can only achieve that with high-rise construction. Aesthetic aside, bowing a building out like that is going to be costly. Cool- but costly. So if we were ever to see something like that happen...it would be in for sale product...and not for rent.
Of course I have no sense for ownership rights in Malaysia, but the regular folks likely cant afford land- and renting for life, might be the norm.
I think that you will be hard pressed to find a developer in the US that would value the greenspace in a way that they would go through the extra cost of creating a mushroom building...unless it was a city requirement.
Very cool though- thank you for sharing.