The year 1757 in architecture involved some significant events.

• Frederiks Hospital, Copenhagen, is opened.
• Middlesex Hospital, London, is opened.
• Vorontsov Palace (Saint Petersburg), designed by Francesco Bartolomeo Rastrelli, is completed.
• Gammel Holtegård near Copenhagen is completed by architect Lauritz de Thurah as a house for himself.
• Hôtel d'Esmivy de Moissac in Aix-en-Provence is completed with a façade designed by Georges Vallon.
• Nuthall Temple in Nottinghamshire, England, a Palladian house attributed to the polymath Thomas Wright, is completed. ^[1]
• Swinfen Hall in Staffordshire, England, designed by Benjamin Wyatt, is built.
• Church of the Dormition of the Theotokos, Negoslavci in Croatia is completed.
• Wolvendaal Church in Colombo ( Dutch Ceylon) is completed.
• Ossian's Hall of Mirrors in Scotland, a folly, is built.

• William Chambers – Designs of Chinese Buildings, furniture, dresses, machines, and utensils: to which is annexed a description of their temples, houses, gardens, &c. (London)

• January 16 – Samuel McIntire, American architect (died 1811)
• May 4 – Manuel Tolsá, Spanish architect and sculptor working in Mexico (died 1816)
• August 9 – Thomas Telford, British civil engineer (died 1834)

• March 12 – Giuseppe Galli Bibiena, Italian architect and painter (born 1696)