This month marks the completion of a new 16-story office tower that is being promoted as New York City’s most sustainable office structure. That boast is backed by an innovative HVAC system that features geothermal wells, dedicated outdoor air system (DOAS) units, radiant heating and cooling, and a sophisticated control system to ensure that the elements work optimally together.
The 555 Greenwich development is connected to the structural frame of the adjoining 345 Hudson St. office building. Its advanced HVAC technologies will result in whole-building energy use of less than half of its adjoining office mate and be 40% lower than an average large New York City office building, according to a news release from Hudson Square Properties, the building’s developer.
The tower is fully electrified with no fossil fuel use on site for any purpose. Even though it uses electricity to heat the building, it will use 40% less electricity than comparable commercial properties. The building employs a fully integrated radiant heating and cooling system fed by fluid conditioned in geothermal wells along with a dedicated outdoor air system (DOAS). Working in concert, the two systems optimize energy efficiency and thermal comfort. The DOAS also supplies fresh air for a healthier indoor environment.
A closed-loop geothermal system embedded in foundation caissons uses the steady temperature of the ground for heating and cooling. The geothermal and radiant heating systems effectively turn the concrete superstructure of the building into a large thermal battery. 555 Greenwich will be the first New York City office building to utilize these systems together in this way, the release says.
Advanced building control systems bolster sustainability. “555 Greenwich is pioneering the use of AI to efficiently toggle between the building’s multifaceted geothermal heat sources, predict heating and cooling needs in advance based on weather forecasts and occupancy patterns, and, over time, learn how to more efficiently transfer energy to and from sister building 345 Hudson,” the release says. “A key component of 555 Greenwich’s construction was a one-of-a-kind horizontal overbuild fully integrating the brand-new building with its century-old sibling, and the dynamic is a look at how modern technology can be integrated into older properties.”
Consulting engineers JB&B and sustainable design firm COOKFOX consulted with Swedish firm urbs to develop the leading-edge HVAC system based on concepts employed more commonly in Europe.
On the building team:
Owner and/or developer: Hudson Square Properties and Hines
Design architect: COOKFOX
Architect of record: COOKFOX
MEP engineer: JB&B
Structural engineer: Thornton Tomasetti
General contractor/construction manager: AECOM Tishman
Related Stories
Government Buildings | Aug 23, 2023
White House wants to ‘aggressively’ get federal workers back to the office
The Biden administration wants to “aggressively” get federal workers back in the office by September or October. “We are returning to in-person work because it is critical to the well-being of our teams and will enable us to deliver better results for the American people,” according to an email by White House Chief of Staff Jeff Zients. The administration will not eliminate remote work entirely, though.
Giants 400 | Aug 22, 2023
Top 115 Architecture Engineering Firms for 2023
Stantec, HDR, Page, HOK, and Arcadis North America top the rankings of the nation's largest architecture engineering (AE) firms for nonresidential building and multifamily housing work, as reported in Building Design+Construction's 2023 Giants 400 Report.
Giants 400 | Aug 22, 2023
2023 Giants 400 Report: Ranking the nation's largest architecture, engineering, and construction firms
A record 552 AEC firms submitted data for BD+C's 2023 Giants 400 Report. The final report includes 137 rankings across 25 building sectors and specialty categories.
Giants 400 | Aug 22, 2023
Top 175 Architecture Firms for 2023
Gensler, HKS, Perkins&Will, Corgan, and Perkins Eastman top the rankings of the nation's largest architecture firms for nonresidential building and multifamily housing work, as reported in Building Design+Construction's 2023 Giants 400 Report.
Affordable Housing | Aug 21, 2023
Essential housing: What’s in a name?
For many in our communities, rising rents and increased demand for housing means they are only one paycheck away from being unhoused. It’s time to stop thinking of affordable housing as a handout and start calling it what it is: Essential Housing.
Adaptive Reuse | Aug 16, 2023
One of New York’s largest office-to-residential conversions kicks off soon
One of New York City’s largest office-to-residential conversions will soon be underway in lower Manhattan. 55 Broad Street, which served as the headquarters for Goldman Sachs from 1967 until 1983, will be reborn as a residence with 571 market rate apartments. The 30-story building will offer a wealth of amenities including a private club, wellness and fitness activities.
Sustainability | Aug 15, 2023
Carbon management platform offers free carbon emissions assessment for NYC buildings
nZero, developer of a real-time carbon accounting and management platform, is offering free carbon emissions assessments for buildings in New York City. The offer is intended to help building owners prepare for the city’s upcoming Local Law 97 reporting requirements and compliance. This law will soon assess monetary fines for buildings with emissions that are in non-compliance.
Office Buildings | Aug 15, 2023
Amount of office space in U.S. is declining for the first time, says JLL
In what is likely a historic first, the amount of office space in the U.S. is forecast to decline in 2023, according to Jones Lang LaSalle. This would be the first net decline according to data going back to 2000, JLL says, and it’s likely the first decline ever.
Office Buildings | Aug 14, 2023
The programmatic evolution of the lobby
Ian Reves, Managing Director for IA's Atlanta studio, shares how design can shape a lobby into an office mainstay.
Office Buildings | Aug 10, 2023
Bjarke Ingels Group and Skanska to deliver 1550 on the Green, one of the most sustainable buildings in Texas
In downtown Houston, Skanska USA’s 1550 on the Green, a 28-story, 375,000-sf office tower, aims to be one of Texas’ most sustainable buildings. The $225 million project has deployed various sustainable building materials, such as less carbon-intensive cement, to target 60% reduced embodied carbon.
