innsertnamehere
Superstar
Looks like it's actually a few metres taller than that too - the 305.6m is to the mechanical penthouse, there is another 2-3m of parapet surrouding the penthouse by the looks of it that should push this to 308-309m.
It's not two fins on the top, it's two columns on each side rising to the topmost beams of the structure, which where they cross the perpendicular ones form the room where the tuned mass damper will be housed. It may look like two fins in the image on this page, but the further away you get from the building, the geometry will be more easily seen.Have come to realize there are a couple things about this tower that added to its allure but in a more subtle way. The two fins at the top have the appearance of being devil-horns, which kinda help give it that bold mean look. But also they somewhat mimic Hancock Tower's two antennae, a building that is basically the de facto example of bold structural expressionism (something that I think The One emulates quite well).
Interesting - there are knockout panels on the southern end of P3 and P4:
AoD
It's not two fins on the top, it's two columns on each side rising to the topmost beams of the structure, which where they cross the perpendicular ones form the room where the tuned mass damper will be housed. It may look like two fins in the image on this page, but the further away you get from the building, the geometry will be more easily seen.
I've plugged 1,012 feet into the database file, which it's rounding up to 309 metres, plus I've added the updated rendering.