1750 in architecture

File:Canaletto - Westminster Bridge, with the Lord Mayor's Procession on the Thames - Google Art Project.jpg, painted by Canaletto before completion]]

• November 18 – Westminster Bridge across the River Thames in London, designed by Swiss-born engineer Charles Labelye, is officially opened.{{cite book|title=The London Encyclopaedia|first=Ben|last=Weinreb|author2=Hibbert, Christopher|publisher=Macmillan|year=1995|isbn=0-333-57688-8|page=976}}
• Kedleston Hall in Derbyshire, England, is commissioned by Sir Nathaniel Curzon (later 1st Baron Scarsdale), to be designed by James Paine and Matthew Brettingham.
• Calcot Park, Berkshire, England, is rebuilt by John Blagrave, following a fire.{{cite web|title=Berkshire History: Calcot Park (Tilehurst)|url=http://www.berkshirehistory.com/castles/calcot_park.html|publisher=Nash Ford Publishing|year=2001|accessdate=2007-09-25}}{{cite web|title=Berkshire History: The Legend of Frances Kendrick's Marriage (Calcot)|url=http://www.berkshirehistory.com/legends/berkslady01.html|publisher=Nash Ford Publishing|year=2001|accessdate=2007-09-25}}
• William Halfpenny publishes Rural Architecture in the Chinese Taste in England.

{{See also|Category:Buildings and structures completed in 1750}}

• Azm Palace, Damascus
• Christoffel Vought Farmstead, New Jersey
• Preservation Hall, a private residence in the New Orleans French Quarter (it will serve as a tavern during the War of 1812)
• Fort Rensellear in Canajoharie, New York

• January 21 – François Baillairgé, architect, painter and sculptor (died 1830)
• May 20 – William Thornton, British-American physician, inventor, painter and architect (died 1828)
• date unknown – John Booth, architect and surveyor (died 1843)
• probable – Thomas Baldwin, English surveyor and architect in Bath (died 1820)

• September 5 – Lauritz de Thurah, Danish architect and architectural writer (born 1706)

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