Building City Country Architect/designer Current owner(s) Completed/ will complete Nominal cost ($US billion ) Inflation-adjusted cost, 2021 ($US billion ) The Great Mosque of Mecca or Masjid al-Haram (King Abdullah Expansion Project) Mecca Saudi Arabia KSA Government of Saudi Arabia 2021 120 [ 1] 120 Hinkley Point C nuclear power station Somerset United Kingdom EDF Energy 2027 40.00 [ 2] Plant Vogtle (Units 3 & 4) Waynesboro, Georgia United States Georgia Power , Southern Company 2023 30.00 ITER Saint-Paul-lès-Durance France Bernard Bigot ITER 2025 25.00 Flamanville 3 Flamanville France 2023 21.93 Akkuyu Nuclear Plant İçel Turkey Denis Sezemin Akkuyu Nükleer Güç Santrali A.Ş. 2023 20.00 Abraj Al Bait Mecca Saudi Arabia Saudi Binladin Group Government of Saudi Arabia 2012 16.00 18.89 Rooppur Nuclear Power Plant Pabna Bangladesh Bangladesh Atomic Energy Commission 2024 12.65 Olkiluoto 3 Eurajoki Finland Areva Teollisuuden Voima 2023 [ 3] 12.4 [ 4] 12.4 Mochovce Nuclear Power Plant (block 3 & 4) Mochovce Slovakia Slovenské elektrárne Slovenské elektrárne 2023 7.61 [ 5] 46.75 SoFi Stadium Inglewood United States HKS, Inc. Kroenke Sports & Entertainment 2020 5.5 [ 6] 5.94 Marina Bay Sands Singapore Singapore Moshe Safdie Las Vegas Sands 2010 5.50 [ 7] 6.83 Marina One Singapore Singapore Ingenhoven Architects Khazanah Nasional Berhad , Temasek Holdings 2017 5.32 [ 8] 5.88 Apple Park Cupertino, California United States Foster and Partners [ 9] Apple Inc. 2017 5.00 [ 10] 5.72 Resorts World Sentosa Singapore Singapore Michael Graves Genting Group 2010 4.93 [ 11] 6.13 Wynn Palace Cotai Macau Butler/Ashworth Architects and Wong & Ouyang Wynn Resorts 2016 4.2 [ 12] 5.22 The Cosmopolitan Las Vegas United States Friedmutter Group with Arquitectonica The Blackstone Group 2010 4.10 [ 13] 5.09 Asia Square Singapore Singapore Denton Corker Marshall with Architects61 CapitaLand Integrated Commercial Trust , Qatar Investment Authority 2013 4.06 [ 14] [ 15] 4.49 Suntec City Singapore Singapore I. M. Pei with DP Architects and Tsao & McKown Architects Suntec REIT 1997 3.81 [ 16] 3.81 One World Trade Center New York City United States Skidmore, Owings & Merrill The Port Authority of New York and New Jersey 2012 3.80 [ 17] 4.49 Marina Bay Financial Centre Singapore Singapore Kohn Pedersen Fox with DCA Architects Hongkong Land , Keppel REIT , Suntec REIT , DBS Bank 2010 3.21 [ 18] 3.99 Lotte World Tower Seoul South Korea James von Klemperer Lotte Corporation 2016 3.11 4.31 Emirates Palace Abu Dhabi United Arab Emirates John Elliott Abu Dhabi Government 2005 3.00 4.16 Palace of the Parliament Bucharest Romania Anca Petrescu Romanian Government 1997 3.00 5.06 Wynn Resort Las Vegas United States Butler/Ashworth Architects and Jerde Partnership Wynn Resorts 2005 2.70 3.75 Central Boulevard Towers Singapore Singapore CallisonRTKL with Architects61 IOI Group 2023 2.52 [ 19] 2.64 Venetian Macau Macau Macau Aedas Las Vegas Sands 2005 2.40 [ 20] 3.33 City of Dreams Macau Macau Arquitectonica Melco Crown Entertainment 2009 2.40 3.03 Antilia Mumbai India Perkins and Will and Hirsch Bedner Associates Mukesh Ambani 2010 2.6 3.23 New Children's Hospital [ 21] Dublin Ireland Benedict Zucchi Irish Government 2025 2.4 [ 22] Raffles City Singapore Singapore I. M. Pei , Architects61 CapitaLand 1997 2.35 [ 23] 2.46 Guoco Tower Singapore Singapore Skidmore, Owings & Merrill with Architects61 Guoco Group 2016 2.27 [ 24] 2.56 Comcentre Singapore Singapore Kohn Pedersen Fox Singtel 2028 2.19 [ 25] 2.19 Marina Square Complex Singapore Singapore John Portman & Associates UOL Group , Mandarin Oriental Hotel Group 1986 2.17 [ 26] [ 27] 2.17 Taipei 101 Taipei Taiwan C.Y. Lee & Partners Taipei Financial Center Corporation 2004 1.80 2.58 Royal Adelaide Hospital Adelaide Australia Silver Thomas Hanley & DesignInc Government of South Australia 2017 2.1 [ 28] The Palazzo Las Vegas United States HKS, Inc. Las Vegas Sands 2007 1.80 2.35 Guoco Midtown Singapore Singapore Denton Corker Marshall Guoco Group 2024 1.77 [ 29] 1.88 Lakhta Center Saint Petersburg Russia RMJM (until 2011), Gorproject Gazprom Neft 2018 1.77 [ 30] 2.09 South Beach Singapore Singapore Foster + Partners Allianz Real Estate , Gaw Capital , Hoi Hup Realty 2016 1.75 [ 31] 2.29 Camp Nou Barcelona Spain Francesc Mitjans and Josep Soteras FC Barcelona 2018 1.73 1.87 Nya Karolinska Hospital Stockholm Sweden Whitearkitekter & White Tengbom team Region Stockholm 2018 1.7 (18 B SEK [ 32] ) 1.94 Crown Sydney Sydney Australia WilkinsonEyre Crown Resorts 2020 1.68 1.72 Kemi Bio Product Factory (Kemin biotuotetehdas) Kemi Finland Metsä Group Metsä Fibre 2023 1.68 1.72 Queensland Children's Hospital Brisbane Australia Conrad Gargett Lyons Queensland Government 2014 1.59 (2.2 AU$) 1.82 Bellagio Las Vegas United States DeRuyter Butler and Atlandia Design Bellagio (MGM Resorts International is the owner of the company) 1998 1.60 2.66 Seat of the ECB Frankfurt Germany Coop Himmelb(l)au European Central Bank 2013 1.57 [ 33] 1.83 Ocean Financial Centre Singapore Singapore César Pelli Keppel REIT 2011 1.53 [ 34] 1.53 DUO Singapore Singapore Ole Scheeren Allianz Real Estate , Gaw Capital , Hoi Hup Realty 2018 1.50 [ 35] [ 36] 1.59 Wembley Stadium London UK Foster and Partners The Football Association 2006 1.50 2.02 Yankee Stadium New York City United States Populous New York City Industrial Development Agency 2009 1.50 1.89 Termoelektrarna Šoštanj blok 6 [ 37] [ circular reference ] Šoštanj Slovenia n.a. Government of Slovenia 2014 1.6 1.83 Burj Khalifa Dubai United Arab Emirates Skidmore, Owings, & Merrill Emaar Properties 2010 1.5 [ 38] 1.86 CapitaSpring Singapore Singapore Bjarke Ingels Group , Carlo Ratti CapitaLand 2021 1.35 [ 39] 1.35 8 Shenton Way Singapore Singapore Skidmore, Owings & Merrill Perennial Holdings 2028 1.24 [ 40] 1.24 Frasers Tower Singapore Singapore DP Architects Frasers Property , National Pension Service 2018 1.45 [ 41] 1.54 Gigafactory 1 Storey County, Nevada United States HOK, Bennett Wagner & Grody Architects, RMH Group, Rocky Mountain Institute, Mortenson Construction , and CH2M HILL Tesla, Inc. 2020 1.31 [ 42] 1.5 Äänekoski Bio Product Factory (Äänekosken biotuotetehdas) Äänekoski Finland Metsä Group 2017 1.33 (1.2B€) [ 43] 1.47 Mall of Tripla Helsinki Finland Arkkitehdit Soini & Horto YIT , Ilmarinen 2019 1.33 (1.1 B€) [ 44] [ 45] 1.39 181 Mercer Street New York United States Davis Brody Bond New York University 2023 1.285 [ 46] 1.45 Jewel Changi Airport (mixed-use building) Singapore Singapore Moshe Safdie Changi Airport Group 2019 1.26 [ 47] 1.42 Comcast Technology Center Philadelphia United States Foster and Partners Comcast 2018 1.5 [ 48] 1.62 Merdeka 118 Kuala Lumpur Malaysia Fender Katsalidis in association with RSP KL PNB Merdeka Ventures Sdn Bhd 2023 1.21 Cinnamon Life Integrated Resort Colombo Sri Lanka Cecil Balmond John Keells Holdings 2024 1.2 [ 49] 1.2 Petronas Twin Towers Kuala Lumpur Malaysia César Pelli KLCC Holdings 1999 1.16 1.89 CapitaGreen Singapore Singapore Toyo Ito CapitaLand 2014 1.11 [ 50] 1.31 Parliament House Canberra Australia Romaldo Giurgola Parliament of Australia 1988 0.848 [ 51] 1.7 Bełchatów Power Station 858 MW unit Bełchatów Poland Pge 2011 1.29 [ 52] 1.55