NEW YORK | 80-100 Flatbush Avenue (Alloy Block) | 482 FT + 840 FT | 40 + 74 FLOORS


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Earlier today


Great pics!



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Did you take more shots of Brooklyn Tower while you were up there Skyalign?

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I did actually I’ll share those with you guys, also got some aerials with BkT anchoring the skyline.


Ah I see it now. Very nice!

the new guy


It has a great presence on Flatbush. I can’t wait for the sister tower to start rising.


I like how that view of it is like the view looking down Flatbush towards Brooklyn Tower just looking from the opposite perspective lol.

I feel like this tower has the high chance of topping out before next year.


Interesting detail, the fins change their angle in each setback - That will make for a more dynamic façade, each setback will be able to catch the light slightly different.


I think that would be a great idea; but I can not see where these “fins” change angles with each set-back. I was interested as I am working with an Architect who designs ‘net zero’ buildings and uses the orientation of the sun (and shading) to control the internal temperature of a given new building.

I can not find where these fins change angle: but I do get the idea - but don’t think that is happening on this building facade. Each ‘fin’ seems to be fixed in place, in the same right angle all the way to the top.

Nice observation anyway - made me look… :face_with_monocle:

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This is what I’m seeing

I’ll try to get more pics today to confirm


@Alemel is right that they’ve changed on this next level, but they arent really fins in the sense of sustainable ones/shading louvers, or mechanical ones, or fins that do anything more than just be really wide mullions @infoshare.


I am not sure if these ‘fins’ are in fact changing direction/angle at different levels. If they are in fact changing angle/direction: it may be for aesthetic affect only - or perhaps for shading/light control also.

I don’t know either way from what I can see from the site photos. My guess is they are fixed window mullions, made large and with a pointy edge for decorative affect only.

The design of Alloy Block is both smart & attractive; so learning anything about the design & function is a pleasure. :face_with_monocle:

Yeah, like I said, although there is such a thing as decorative fins, they aren’t really fins, just really wide decorative mullions. They don’t do anything but add to visual affect of the building. They dont move or anything, but neither do most fins that serve the purpose of shading a building or controlling sunlight/ heat levels. Mechanical shading louvers are still an extremely rare thing in sustainable design. Vertical fins are for east and west sides of a building while horizontal projections are intended for the south facing 0sides.

Alemels depiction shows how the mullions are changing, not in their positioning, as they are fixed, but the shape of their overall extrusion in plan view due to the irregular nature of the setback and how these wide “mullions” are following a particular path.


Ok, maybe “fins” were not the right technical word to describe them.
They are indeed decorative, like infoshare said, the design of this building is very smart, and they are able to achieve a lot with small design interventions.
Here is a close up of the mullions, I think it’s easier to see the effect:

And here you can see the effect they create with the sunlight:

I guess we will see a different angle on the third setback, something like this:


Yes, nice shots!

Quite possible, it seems the shapes are following a path determined by the “back” (the shortest side facing the school) facade which is fixed on one end and pivoting to setbacks on the other end. That is why one side has box like mullions while the other has triangular as they are really all the same but the shape of the floors is making them change.


I think so, clever. I can’t wait for the second tower