1756 in architecture

• Greek Revival architecture appears in the window design for Nuneham House in Oxfordshire, England, by Stiff Leadbetter.{{cite journal|authorlink=Giles Worsley|first=Giles|last=Worsley|title=The First Greek Revival Architecture|journal=The Burlington Magazine|volume=127|issue=985|date=April 1985|pages=226–229}}
• John Smeaton produces the first high-quality cement using hydraulic lime since Roman times for construction of the third Eddystone Lighthouse (completed 1759).

{{See also|Category:Buildings and structures completed in 1756}}

File:Catherine Palace in Tsarskoe Selo.jpg, Tsarskoye Selo, Russia]]

File:Trafford Hall Geograph-4653410-by-David-Dixon.jpg

• Replacement Catherine Palace, Tsarskoye Selo in Russia, designed by Francesco Bartolomeo Rastrelli, is completed.
• Klov Palace, Kiev in Russia, probably designed by Gottfried Schädel and Pyotr Neyelov, is completed.
• Replacement Basilica of the Birth of the Virgin Mary, Chełm in Poland, designed by Paweł Fontana, is completed.
• Reconstruction of Abbot's Palace (Oliwa) in Gdańsk, Poland, is completed.
• Newbridge, now Old Bridge, Pontypridd in Wales, designed by William Edwards, is completed.{{cite web|title=Pontypridd Bridge|url=http://en.structurae.de/structures/data/index.cfm?id=s0005448|work=Structurae|accessdate=2012-11-19}}
• St Andrew's in the Square, Glasgow, Scotland, designed by Allan Dreghorn, is completed.{{cite web|title=St Andrews in the Square |url=http://www.gbpt.org/projects/standrews.html |archive-url=https://web.archive.org/web/20030808114952/http://www.gbpt.org/projects/standrews.html |url-status=dead |archive-date=2003-08-08 |publisher=Glasgow Buildings Preservation Trust |accessdate=2012-11-19 }}
• Octagon Chapel, Norwich in England, designed by Thomas Ivory, is completed.{{NHLE |num=1280186 |accessdate=2012-11-19}}
• Original Whitefield's Tabernacle, Tottenham Court Road in London is built.
• Trafford Hall in England is built.
• Wrotham Park, Hertfordshire in England, designed by Isaac Ware, is completed.
• Shaw Mansion (New London, Connecticut) is built.
• The President's House (Princeton), New Jersey, is built.
• First Presbyterian Church (Newburyport, Massachusetts) is built.
• Alloways Creek Friends Meetinghouse, Hancock's Bridge, New Jersey, is built.
• Saint Gevorg of Mughni Church, Tbilisi in Armenia is completely rebuilt.
• St John the Evangelist Church, Shobdon, Herefordshire, England, is completely rebuilt with a "Strawberry Hill Gothic" interior.{{cite web|accessdate=2016-05-06|first=David|last=Ross|title=Shobdon, St John Church|url=http://www.britainexpress.com/attractions.htm?attraction=3870|work=Britain Express}} Elements of the previous building are incorporated in folly arches nearby.

• Isaac Ware publishes A Complete Body of Architecture in London.

• February 29 – C. F. Hansen, Danish architect (d. 1845)
• Chrystian Piotr Aigner, Polish architect (d. 1841)
• Giovanni Antonio Antolini, Italian architect (d. 1841)
• 1756 or 1758 – Francesco Piranesi, Italian-born architectural engraver and architect (d. 1810)

• July 1 – Giambattista Nolli, Italian architect and surveyor (b. 1701)

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