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January 20, 2019

Non-load-bearing curtain wall

Liz Diller of Diller Scofidio + Renfro was recently asked by designboom about how her firm approached the design of Fifteen Hudson Yards (the first residential tower in New York’s Hudson Yards).

The firm had never designed a high-rise before. So while their typical approach would be to analyze program, here they were heavily informed by the views – both in and out from the site – as you move up the tower.

The 88 storey tower transitions between two footprints. The base matches the street grid of the city, but as you move up the tower it transforms into a cloverleaf – allowing panoramic views of the city.

It is a somewhat similar approach to what has been proposed by Studio Gang for One Delisle. Except for the transformation here is to a multifaceted cylindrical shape (a hexadecagon is what has been drawn).

From the late 19th century when Chicago began to pioneer the modern skyscraper, architects and engineers have been thinking about how you treat a tall building as you move from top to bottom.

Chicago architect Louis Sullivan responded to this challenge with his tripartite approach to design. He believed that tall buildings should be characterized by three main divisions: a base (bottom), a shaft (middle), and a cap (top).

The technological innovation that allowed this thinking to flourish was the non-load-bearing curtain wall. Once the exterior walls of a tower no longer supported the actual building, architects then had the freedom to really experiment.

This remains true to this day, but we no longer need to confine ourselves to only three parts. New technologies now allow for more.

Today we have parametric modeling and other design tools that allow us to create new geometries and transitions; forms that would have been pretty complex to draw up in the past. 

In the case of Fifteen Hudson Yards, every floor plate from 20 something and up is slightly different. I wonder what Louis would think of this.

Image: Timothy Schenck via designboom

Cover photo
December 31, 2018

Documenting a city

Starting in the late 1930s, New York City began hiring photographers to document each and every building in the city. It did this to improve the accuracy of its tax assessments, and so every photo was taken with a sign board indicating the building’s block and lot number. The photos looked like this (taken from here):

image

The initiative produced over 700,000 black and white photos, all of which have been recently digitized according to the New York Times. The Times also recently published this interactive piece where they go back to these archival photos to see how the city has and hasn’t changed. 

In the late 1930s and early 1940s, documenting a city and its buildings was clearly a manual endeavor. Today we have Google Street View (launched in 2007), which has now photographed much of the world. Many countries, including all of North America, are reported as having “mostly full coverage.”

But already autonomous vehicles (and their supporting services) are starting to scan and map our cities in new ways. So it will be interesting to see what ends up getting built on top of this data. I am certain it will empower much more than just better tax assessments.

Happy New Year, friends. Thanks for reading over the last year.

December 22, 2018

Maple Valley? No.

At this time of year, I am always amazed by the number of mass emails that I receive from unknown people and companies. They have my email address, clearly, and yet I only receive one email a year from them – a happy holidays email. I am not opposed to holiday cheer. I love Christmas. But if you’re looking to build any sort of meaningful rapport with an audience, my sense is that you ought to send more than one email a year.

In other news, the Economist published an article this past week talking about how Toronto is attracting disaffected (Indian) tech workers from the US and, more particularly, Silicon Valley. It is largely a story of immigration and diversity. But at the end of it, the Economist also reports that some people are now calling Toronto, Maple Valley. Toronto immediately reacted to this moniker – negatively.

Nobody refers to Toronto as Maple Valley. And these sorts of names are stupid. In the 1990s, the Flatiron District in Manhattan started being called Silicon Alley (at least by some). That name was also stupid. New York is New York. And Toronto is Toronto. If you’re going to assign a nickname, it should not be derivative. And in the case of Toronto, you probably also want to avoid kitschy Canadian stereotypes.

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Brandon Donnelly

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Brandon Donnelly

Daily insights for city builders. Published since 2013 by Toronto-based real estate developer Brandon Donnelly.

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