JPMorgan Chase Opens Its New 270 Park Avenue Headquarters

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• Architecture09/15/2026@BuildDesk

  The Spiral Opens at Hudson Yards

  The Spiral, 66 Hudson Boulevard East, Manhattan, New York, United StatesTishman Speyer

  

  Starts 11/07/2023CONFIRMED89% CONFIDENCE2.9 years agoHappened as dated, per the source^[1]: "The Spiral — a 2.8-million-square-foot office skyscraper located at 66 Hudson Blvd. in Manhattan — has officially opened," reported in November 2023.

  Bjarke Ingels Group's The Spiral, a 314-metre office tower wrapped in cascading green terraces, opened at 66 Hudson Boulevard as Pfizer's new global headquarters.

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• Sports09/15/2026@BuildDesk

  Intuit Dome, the Clippers' New Arena, Opens in Inglewood

  Intuit Dome, Inglewood, California, USALA Clippers

  

  Starts 08/15/2024CONFIRMED84% CONFIDENCE2.1 years agoHappened as dated, per the source^[1]: "opened on August 15, 2024".

  The Clippers' new $2BN Intuit Dome arena opened in Inglewood on August 15, 2024, giving the team its first standalone home after decades sharing a venue with the Lakers.

  $2B

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• Architecture09/15/2026@BuildDesk

  One Vanderbilt Opens Beside Grand Central

  1 Vanderbilt Avenue, Midtown Manhattan, New York, NY 10017SL Green Realty·…

  

  Starts 09/14/2020CONFIRMED82% CONFIDENCE6.0 years agoHappened as dated, per the source^[1]: "One Vanderbilt was formally opened with a ceremony three days later, on September 14."

  One Vanderbilt, a 1,401-foot supertall office tower beside Grand Central Terminal, formally opened in Midtown Manhattan.

  $3.3B

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• Property09/15/2026@BuildDesk

  One Wall Street Completes Largest NYC Office-to-Apartment Conversion

  1 Wall Street, Financial District, Manhattan, New York, United StatesMacklowe Properties

  

  Starts 03/06/2023CONFIRMED90% CONFIDENCE3.6 years agoHappened as dated, per the source^[1]: "the building obtained its certificate of temporary occupancy, and the first residents were scheduled to move in the following week."

  Macklowe Properties finished converting the Art Deco One Wall Street office tower into 566 apartments, the largest office-to-residential conversion completed in New York City.

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• Architecture09/15/2026@BuildDesk

  220 Central Park South Completes on Billionaires' Row

  220 Central Park South, Manhattan, New York, USAVornado Realty Trust·…

  

  Starts 12/31/2019CONFIRMED87% CONFIDENCE6.7 years agoHappened as dated, per the source^[1]: "220 Central Park South was completed in 2019," with first residents moving in during 2018.

  220 Central Park South, a limestone-clad tower on Manhattan's Billionaires' Row, completed as one of the most profitable condo buildings ever built, breaking from the glass-tower norm.

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• Architecture09/14/2026@BuildDesk

  432 Park Avenue Opens on Manhattan's Billionaires' Row

  432 Park Avenue, Manhattan, New York, NYMacklowe Properties

  

  Starts 12/23/2015CONFIRMED84% CONFIDENCE10.8 years agoHappened as dated, per the source^[1]: "Year of Completion: 2015."

  Harry Macklowe's 432 Park Avenue, then the world's tallest residential tower, officially completed in Manhattan in December 2015 after four years of construction.

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• Architecture09/20/2026@BuildDesk

  GRB Houston South Opens as the Convention District's First Phase

  GRB Houston South, Avenida de las Americas at Polk Street, Houston, TexasHouston First Corporation

  

  Starts 05/01/2028ESTIMATED50% CONFIDENCEin 1.6 yearsHouston First^[1] says the fully financed first phase is "on schedule to open in May 2028", a month rather than a day.

  A 700,000-square-foot building joined to the George R. Brown Convention Center, holding two exhibition halls, an atrium hall and the largest ballroom in Texas, plus a 100,000-square-foot pedestrian plaza linking it to the Toyota Center. Houston First financed this first phase of its $2 billion convention district transformation with about $1.38 billion of hotel occupancy tax and special revenue bonds.

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• Architecture09/20/2026@BuildDesk

  The Obama Presidential Center Opens to the Public

  Obama Presidential Center, Jackson Park, Chicago, IllinoisObama Foundation

  

  Starts 06/19/2026CONFIRMED82% CONFIDENCE96 days agoThe Obama^[1] Foundation's grand opening FAQ says "the public will be able to start visiting the campus and Museum on June 19, 2026", a fixed day that has now passed.

  The Obama Foundation's 19.3-acre campus in Jackson Park, built around a 225-foot museum tower, took its first visitors on Juneteenth, the day after a dedication ceremony at John Lewis Plaza. At roughly $850 million it is the most expensive presidential library yet built; ground was broken in September 2021 after years of lawsuits over the Jackson Park site.

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• Architecture09/14/2026@BuildDesk

  China's $1BN Skyscraper Mistake

  100 Century Avenue, Pudong, Shanghai, ChinaMori Building

  

  Starts 08/28/2008CONFIRMED85% CONFIDENCE18.1 years agoHappened as dated, per the source^[1]: "The building finished at long last in 2008."

  The Shanghai World Financial Center opened in 2008 after developers were forced to redesign its circular summit opening into a trapezoid when the public read it as a Japanese flag.

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• Architecture09/20/2026@BuildDesk

  Harvard Opens the First Phase of Its Enterprise Research Campus

  224 Western Avenue, Allston, Boston, MA 02134, United StatesHarvard University

  

  Starts 06/23/2026CONFIRMED90% CONFIDENCE92 days agoThe developers' release says they "were joined on June 23 by Mayor Michelle Wu" to celebrate the opening.^[1]

  Harvard, Tishman Speyer and Breakthrough Properties cut the ribbon on the first phase of the Enterprise Research Campus in Allston: two commercial laboratory buildings called OneMilestone, the 343-apartment Verra, the Atlas Hotel, Harvard's David Rubenstein Treehouse conference centre, 40,000 square feet of retail and more than two acres of public open space. It is the opening move on a 36-acre site, with a Phase B of labs, offices and housing still to be permitted.

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• Architecture09/15/2026@BuildDesk

  Frank Gehry's MPK 20 Opens at Facebook's Menlo Park Campus

  1 Hacker Way, Menlo Park, CA, USAFacebook

  

  Starts 03/30/2015CONFIRMED90% CONFIDENCE11.5 years agoHappened as dated, per the source^[1]: "Today we moved into our new Facebook building in Menlo Park, California."

  Facebook employees moved into MPK 20, a Frank Gehry-designed office building topped by a nine-acre rooftop park, expanding the company's Menlo Park headquarters.

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• Architecture09/14/2026@BuildDesk

  520 Fifth Avenue Tops Out

  520 Fifth Avenue, Manhattan, New York, USARabina

  

  Starts 10/31/2024ESTIMATED62% CONFIDENCE1.9 years agoThe pin's event is the topping out, which New York YIMBY^[3] and Connect CRE both reported on 24-25 October 2024 and which Wikipedia^[2] gives as October 2024. The previous date of 1 June 2026 was Wikipedia's estimated completion date, not the topping out. No source gives the exact day, so this is dated to the last day of that month as an estimate.

  A 1,001-foot Kohn Pedersen Fox supertall at 520 Fifth Avenue, one of the first new Manhattan skyscrapers in decades built with a masonry-style terracotta facade instead of glass.

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