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432 Park Avenue Opens on Manhattan's Billionaires' Row
CONFIRMED84% 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.0.64Central Park Tower Welcomes Its First Residents
Central Park Tower, 225 West 57th Street, New York, New York, United StatesExtell Development Company
CONFIRMED85% CONFIDENCE5.6 years agoHappened as dated, per the source[1]: "The first buyers finalized the purchases of their apartments in February 2021."The world's tallest residential building began closing apartment sales on Billionaires' Row, months after finishing construction as Manhattan's newest supertall.0.63Dubai to Add the World's First Rotating Skyscraper to Its Skyline by 2020
CONFIRMED80% CONFIDENCE5.8 years agoHappened as dated, per interestingengineering.com[1]: "…“Dynamic Tower” which is expected to be completed in 2020. Th … line by 2020 Dubai will be home to t…"Dubai will be home to the first rotating skyscraper, dubbed the “Dynamic Tower” which is expected to be completed in 2020. The 42-meter skyscraper will be made of a series of 80-story-high rotating condos each costing a whopping $30 million.$30M0.62Collins House Completes as One of the World's Slimmest Skyscrapers
Collins House, 468-470, Collins Street, Koreatown, Melbourne, Victoria, 3000, AustraliaHickory Group
ESTIMATED69% CONFIDENCE7.0 years agoEstimated: Hickory[2], the main contractor, gives completion as September 2019 after a 29-month build; no day is published, so the month's last day stands in. Wikipedia[3] gives only the year.Hickory Group completed Melbourne's 57-storey, prefabricated Collins House in September 2019, a residential tower just under 12 metres wide at its narrowest point.0.62Atlassian Central Tops Out as the World's Tallest Hybrid Timber Tower
CONFIRMED90% CONFIDENCE65 days agoThe report says a "topping out ceremony" was held at the Atlassian Central skyscraper in Sydney on Wednesday, 22 July 2026.[1]The 39-storey, 180-metre tower beside Central Station reached its full height at a topping-out ceremony, making it the world's tallest hybrid timber and steel building. Co-owned by Atlassian and the property group Dexus, it anchors Sydney's Tech Central precinct and is expected to be completed in 2027.A$1.4B0.62Mass General's Ragon Building Opens Its First Tower to Patients
DELAYED12 months late40% CONFIDENCEin 1.3 yearsMass General Brigham's[1] own page still describes "initial first side of the building opening in 2027", a year earlier than current reporting.The first of two connected towers in Mass General's Cambridge Street expansion takes its first patients, bringing 450 beds and 12 levels of operating, procedural and interventional space for the Corrigan Minehan Heart Center and the Mass General Cancer Center. Turner topped out the steel in February 2025; the second tower is not due until 2030.0.61Anthropic Confirms It Runs a Wet Biology Lab in the Bay Area
CONFIRMED93% CONFIDENCE7 days agoThe source[1] page carries its own date of 22 September 2026 and is a write-up of earlier reporting, so the event's date comes from the two reports it is built on: Reuters[2] published the exclusive at 3:02 AM PDT on 18 September 2026 and TechCrunch[3] the confirmation at 4:13 PM PDT the same day - "Anthropic[4][5][6] has a wet biology lab in the Bay Area where it can use its AI models to run physical experiments, it has confirmed to TechCrunch". The pin is the day the lab was disclosed: Anthropic gave no date for when it opened and declined to say where it is beyond the Bay Area, so the pin sits on San Francisco, the city of its own headquarters.Anthropic confirmed it operates a wet biology lab in the Bay Area where its models can run physical experiments, its head of life sciences Eric Kauderer-Abrams saying the company is doing real lab work today. Anthropic says the facility's focus is fundamental biology rather than drug discovery, where it partners with pharma customers including Novo Nordisk.0.61Construction Starts on Diriyah's 20,000-Seat Arena Superblock
CONFIRMED90% CONFIDENCE1.2 years agoDiriyah Company[1] dated its announcement of the "SAR 5.75 billion ($1.53 billion)" Arena Superblock contract 16 July 2025.Diriyah Company awarded a branch of China Harbour Engineering the contract to build the Arena Superblock: the multi-purpose indoor Diriyah Arena seating 20,000 spectators, three mixed-use office buildings and a parking facility with more than 4,000 spaces. The arena sits on the edge of historic At-Turaif and anchors the Grand Avenue district alongside Diriyah's Grand Mosque.SAR 5.8B0.61Sapphire by the Gardens' Skybridge Completes in Melbourne
CONFIRMED90% CONFIDENCE4.1 years agoHappened as dated: Multiplex's[2] release and The Property Tribune[3] both date the topping out of both towers, skybridge included, to 3 August 2022. The pin's earlier October 2022 date was when the first residents were expected to move in.The twin towers of Sapphire by the Gardens topped out, joined 46 storeys up by an oculus-floored skybridge over Melbourne.A$600M0.61220 Central Park South Completes on Billionaires' Row
CONFIRMED87% 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.0.61China Expands Its Nationwide Skyscraper Height Caps
CONFIRMED90% CONFIDENCE4.9 years agoHappened as dated, per the source[1]: "Skyscrapers taller than 150 meters are not allowed to be built in cities with less than 3 million people".China's housing ministry tightened its skyscraper rules nationwide, barring any new building over 150m in cities under 3 million people and capping larger cities at 250m.0.61The Brooklyn Tower Finally Receives Its Certificate of Occupancy
CONFIRMED75% CONFIDENCE1.4 years agoHappened as dated, per the source[1]: "the building did not receive a permanent Certificate of Occupancy until April 25, 2025."The Brooklyn Tower at 9 DeKalb Avenue, the borough's first supertall skyscraper, received its certificate of occupancy, issued as an extension of its temporary permit, years after residents began moving in.$750M0.61
