Engineering Super Slender Towers

New York is really the city of towers and it has been since the late 19th century and every era of skyscraper cycles of construction has added to the skyline each era of design and economic cycle produced an image on skyline the tall buildings in New York used to be office buildings and those were very monolithic structures post-war typically big floor plates 30,000 foot floor plates and very blocky today the trend is towards residential buildings which by their nature have much smaller floor plates so you’re seeing buildings that are smaller and floor plate and taller but I think it’s actually a throwback to the old romantic New York skyscrapers which were office but had smaller floor planes land is very expensive in New York and if you’re going to build something you should build as high as you can to get the most out of your land that is not too much space where to put your building so if there is a space it’s a little space so the only direction that you can go freely it’s in height there is an interest and the people to live in height they are willing to pay the developers are willing to build for them and the top of it is not space so all these factors makes the tall buildings in New York in particular very attractive since 1961 New York has had a zoning light that really constrained the amount of building that could be put on any lot zoning in New York is very complex there are a number of different controls that govern where the building is sited how far it sets back how much floor area you’re allowed within so zoning is very intricate but there’s a feature of the law that allows for the transfer of air rights that could be piled up on top of another tower putting together that creates an envelope that allows for this spectacular new set of buildings the super slender ultra-luxury towers the zoning doesn’t really exist in very many places in the city to be able to build these super tall buildings and economically would make no sense to build them because the market wouldn’t pay enough to cover the hard costs if you did it without say a central park view and that’s why we’re building tall to capture that view and history has shown that New Yorkers are willing to pay for that view that’s what sells the space and then you walk in you see these big square glass windows that are ten two and a half feet in dimension it’s beautiful slender in engineering terms is measured by height divided by width anything above a ratio of one to seven will be considered a slender building as the material has improved through the years and construction techniques have also improved you have seen this rate of exceeding 15 or almost twenty along the Central Park corridor where people are really willing to pay a premium for that Park view it’s really the only place that these super tall buildings right now are economically viable every single building is different every single one has its own characteristics and every single buildings we have to go from scratch and to create a new one there are no repetitions working with the structural engineer from day one was critical it’s a chicken or egg you have to have a layout that works in the building that works but you also have to have a structure that works so finding that efficient balance between those elements is really critical to do at the very beginning in terms of technology the sky’s the limit but in terms of political forces economic forces the ability to find land create these large assemblages have the appropriate zoning to build these large structures I think those are going to be the impediments to really pushing the envelope further this new type is really a new type in skyscraper history these new super slender residential towers really do represent a new typology that is characteristic specifically of New York and a new growth of construction in the 21st century with a form that historians 100 years from now we’ll see as distinctive of this moment in time when you come look at New York and five ten years from now it’s a completely different city with all the stuff that’s planned we’re happy to see the super high-rise developments both commercial and residential come back to where everything started that’s you


  1. Danial Tunio said:

    Great! Can't wait to be part of WSP team one day as Civil/Structural Engineer.

    March 30, 2016
  2. etherealx23crisis said:

    "new breed"

    March 30, 2016
  3. Simon Gomes said:


    April 8, 2016
  4. Charles Caro said:

    One thing I have read about the view from 432 Park Avenue is the fact it is not possible to see 432 Park Avenue in the view.

    April 29, 2016
  5. Newcastle utd 1892 said:

    New york looks so old and tired

    June 24, 2016
  6. niac 1234 said:

    New York's skyline is going to look so awkward in 10 years.

    July 25, 2016
  7. Pensarz said:

    The new buildings are flat ugly and blight the airspace. There is no character or beauty to them.

    August 18, 2016
  8. Moni Poppaea Di Maria said:

    I love architecture of towers, but this tower is a little boring it could be more beautiful. I had loved to be in the desgin team of that team.Why is the top open ????

    August 20, 2016
  9. nyan cat66 said:

    I love that city so much.

    August 25, 2016
  10. nyan cat66 said:

    It's so beautiful

    August 25, 2016
  11. james woody said:

    Freaking beautiful engineering! It is amazing!

    August 30, 2016
  12. eardrum buzzer said:

    Its turning into something very "Blade Runner."

    September 12, 2016
  13. ARVIN said:

    "New Yorkers are willing to pay for that view…" You mean some foreign ultra rich who probably never even spoke to a real new yorker.

    September 22, 2016
  14. Jordan Wright said:

    53W53 is the only decent one, all the rest are just awkward, vein and ugly.

    September 22, 2016
  15. merio said:

    i hate it, i know it is a safe and solid structure but just looking at how slender it is makes me want to stay as far a way as possible from it

    October 19, 2016
  16. coc0s said:

    On a windy day the bathtubs in the top-floor apartments will be like wave pools.

    February 8, 2017
  17. Raghunandan Reddy C said:

    i think it has no character

    March 30, 2017
  18. savolrat said:

    most of them look nice but 432 park avenue looks like a matchstick with zero architectural quality whatsoever.

    July 6, 2017
  19. Khurram Qureshi said:

    These buildings are tall no doubt but ugly, the architects are not really doing a great job at the end its about Demand and Supply. Hudson yards is more iconic in its style then these cigarette looking buildings

    July 23, 2017
  20. Kris4PR said:

    From the top of the Rockefeller building I saw 432 Park Avenue for the first time in Nov 15, it took my breathe away, had never seen anything like it. So tall and skinny. It doesn't offend me, I quite like it but the idea of living right at the top makes my stomach turn, you have to have nerves of steel to stay up there!

    September 5, 2017
  21. Thanh Tran said:

    The future is here. One would think this is only from Tomorrow Land

    October 23, 2017
  22. Hela of Universe said:


    November 2, 2017
  23. Anderson Klein said:

    I wonder if there is anyone that still fail to see how zoning laws lead to higher costs for housing and businesses. Cities all around the US are strapping themselves and limiting their growth, throwing people into suburbs, because they don't allow housing and business to settle in downtown.

    November 4, 2017
  24. Mario Preisser said:

    Hope this trend dies, I really dislike how they look

    November 5, 2017
  25. Victor Cordeiro said:

    This new tipe of buildings are my life, can't wait to work in these projects as an architect ❀️

    December 5, 2017
  26. M Zajac said:

    Very nice but I can't afford to live in one.

    December 12, 2017
  27. YouAreQuiteRight said:

    Sunday Times Rich List. This list has determined that London is home to the most billionaires (80), whilst New York City is second with 56.

    December 12, 2017
  28. 3ysa said:

    2:30 "New Yorkers willing to pay" lol more like the Russians, Chinese and Arabs are the ones whom are willing to pay for the view

    December 13, 2017
  29. Jack McDonald said:

    I know there are people that are against most of these buildings being in New York, but I'm for them.

    December 19, 2017
  30. McAllister Pulswaithe said:

    That is one ugly building.

    January 13, 2018
  31. Ed Thoreum said:

    this video lacks engineering focus, lots of opinion only?

    January 17, 2018
  32. bob dylan said:

    Not safe!!!

    April 3, 2018
  33. canaljkt said:

    why dont they build on that florest?

    April 5, 2018
  34. Adrian Gunnison said:

    Amazing πŸ’™

    April 16, 2018
  35. Augus Javed said:

    dangerous!!!…. beware….24:1 at Steinway
    even a 7 year old will tell you…something ain't right….yes I know the math adds up…..until it dont….like Citicorp on Lexington 1977…..
    dangerous when people are proud of 99% of their math….and not know the other 1%…
    it all works… till one day it don't…. then they make headlines and documentaries and motion pictures…starring Meryl Streep….

    April 28, 2018
  36. Augus Javed said:


    April 28, 2018
  37. Adyan Riad said:

    No need to be rude but 432 park ave is ugly and one 57 looks better

    June 23, 2018
  38. Sue Kennedy said:

    Is 30 Park Place the one with the missing NFPA 13 required external sound alarm for the Fire Department Connection?

    July 19, 2018
  39. Hanna Stramavus said:

    As a New Yorker 432 Park Avenue Looks shit it’s Skinny it’s 90 by 90 feet.sorry But it ugly

    August 17, 2018
  40. Pamela Homeyer said:

    Stupid waste of money and time based on Egos and small hands. Very small hands

    August 25, 2018
  41. Antares Andrews said:

    Even the old World Trade Center towers looked better…

    August 30, 2018
  42. sebastian garcia monclova said:

    Ugly, easy to ignore and a hindrance to The tourists who wants to see nyc iconic skyline, perfect

    September 1, 2018
  43. XxTRINITYxX said:

    For second i thought they war building twin towers πŸ˜•πŸ˜•

    September 1, 2018
  44. Lego KingsCastle said:

    432 park avenue looks like the architect got his CAD software muddled up with minecraft.

    October 1, 2018
  45. Savaliya Mahesh my mo 7567209892 said:

    Yes u New India Gujarat welcome Name Mahesh Patel WhatsApp call 7567209892 IT kam VIP business USA UAE

    October 8, 2018
  46. ZipEmUp 89 said:

    The powerful will be ripped from their decadent nests, and cast out into the cold world that we know and endure. -Bane

    October 11, 2018
  47. Ricky Silva said:

    I really like it, it would look futuristic and I think its time for America to change and catch up with other countries and their unique buildings. After all we basically were the first to create the skyscraper.

    December 22, 2018
  48. Titanic Big boat said:

    The New York skyline you won’t be able to see the Empire State because of the super slender sky tower some random guy: can you destroy the Empire State building so I can build the super slender building
    Construction worker OK
    The public that sucks we will miss the Empire State building destroy the cost of building not the Empire State
    Destroys the Empire State
    Riots in New York

    January 5, 2019
  49. A Day in a Life of a Wierdo said:

    I do not like going to the empire state building then falling to look for the top of the 1 inch thick 432 Park Avenue

    February 9, 2019
  50. Douglas Fox said:

    Pure Concrete Death traps…Reinforced concrete building is fine for 5-15 story parking garages..But not 60-85 stories..I've worked in the Prestressed Reinforced concrete building trades..These new buildings have no steel super structures..Concret does not Flex like steel buildings..if it does, it will Collapse..Steel building can Flex in the Wind…There going to regret these poured conctrete Death Traps when they start tumbling over…Let's not hear that 911 towers and tower #7 were Steel and they Collapsed…No, they were brought down bye Controlled Demolition…Period !!

    February 9, 2019
  51. NAMiSTAN QAZAQ said:

    Qazaqstan ilav you

    February 12, 2019
  52. The Life of Tony said:

    The 432 Park Avenue building is probably the most awful-looking building I’ve ever seen. It must have taken the architect a good 12 seconds to design it.

    February 13, 2019
  53. γΎγ„γ‘γ‚‹γ˜γ‚ƒγ‚“γγ—γ‚‡γ‚“ said:

    ζ²–ηΈ„ηœŒεθ­·εΈ‚η‚Ίεˆγ«γ‚‚ε»Ίγ¦γ¦γγ γ•γ„wwwεπŸ˜ε―Œε£«ε±±πŸ—»

    February 20, 2019
  54. Major Miles said:

    Didn't really say anything about engineering…

    April 22, 2019
  55. Mr. Comment Boi said:

    I know its skinny, but they should at least make it stable.

    May 3, 2019
  56. EL GEE said:

    no one lives here

    May 5, 2019

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