New York’s greenest office building shows the beauty of sustainability
I love it when sustainable things are more awesome than non-sustainable things.
The Danish architect Bjarke Ingels once said that, thanks to the modern environmental movement, we’ve gradually come to believe that sustainable life is less fun than normal life. But, to me, architecture in particular and real estate development in general has demonstrated exactly the opposite: some of the most beautiful buildings in the world, the most interesting, the places you’d most like to work out of, are built with sustainability right at the forefront.
The Durst Organization’s One Bryant Park is a great example of this. Located just off Times Square, it’s the second tallest building in New York and the first ever platinum LEED certified high-rise office building. It’s also where Al Gore has his New York office. And the other day, Alexander Durst was kind enough to give me a tour of the building.
The big thing with sustainable building is energy consumption, and the big thing with energy consumption in a high-rise is cooling. Even in winter, office buildings capture and trap heat that needs to be dispersed. So we started our tour at the chillers, around 80 feet below the Manhattan streets.
Essentially giant air-conditioning units, these chillers work best and most efficiently when they’re running full blast. So, rather than waste energy by having a bunch of chillers the same size operating at less than full capacity, One Bryant Park employs a variety of chillers of different sizes -- from 600 to 1,200 tons -- and adjusts the configuration as cooling requirements fluctuate throughout the year.
Keeping track of the chillers’ performance, as well as the building as a whole, means keeping track of a lot of data, so a giant display makes it easy to see at a glance how the chillers are doing, what the temperature is on each floor, and even what the CO2 levels are on each floor. If there’s too much CO2, people get sleepy -- and it’s a well-known fact that people tend to work less while they’re sleeping.
Another problem with energy consumption in office buildings is that it’s erratic. During the day, while everyone’s at work, it spikes dramatically, while at night it’s almost non-existent. But for power companies, this is a big problem. They have to have enough capacity to handle the heavy daytime loads, but they can’t just switch it off when people go home. So they make it a lot cheaper to buy power at night.
One Bryant Park addresses this problem by using the cheap night power to make ice, and then using the ice to help cool the building during the day. Although the ice storage units take up around 100 times the space of an equivalent chiller, it’s far more energy efficient for the building itself, and helps level out the demand for the power company.
On individual floors, instead of cooling from the top down -- which requires unnecessary effort to cool the rising hot air -- the air is cooled from the bottom up. One Bryant Park’s attention to air quality is so good that the air inside is actually cleaner than the air outside!
The developers worked very closely with the city to make sure One Bryant Park would be a good neighbor; the results are evident in the free public space, filled with greenery, that’s open to everyone. They also maintained the façade of the historic Henry Miller theater, the only theater in New York where you enter at street level to find yourself at the top of the balcony, and have to descend to get down to the stage.
Finally, being the second tallest building in New York has its perks, and one of them is this: a stunning view of the tallest, the Empire State Building.
One Bryant Park is the kind of building you’d want to be in even if you didn’t care a bit about the environment. It’s beautiful, spacious, has lots of natural light and just feels good. Far from being “less fun” than normal buildings, it’s actually more desirable. I don’t know about you, but if this is what sustainability is all about, I’m in.








