One Great George Street
building in Westminster, London
One Great George Street (OGGS) is a four-domed grade II listed Edwardian building used as a conference and wedding venue just off Parliament Square in Westminster, England. The building is the global headquarters of the Institution of Civil Engineers (ICE); it was originally solely a venue for ICE members to meet informally and for conferences, but became available for public events in 1989. It is near the Houses of Parliament, Westminster Abbey, and St James's Park.
Building and history
From 1839 until 1913, ICE occupied numbers 24–26 Great George Street. In the mid-1880s the government proposed re-development of the area around Great George Street to provide more office space for government departments. This meant the demolition of ICE's first location and led ICE to move its headquarters across the road to numbers 1–7.
One Great George Street was built for the ICE between 1910 and 1913 and was the result of an architectural competition won by James Miller, RSA (1860–1947). His winning design was priced at £77,126, with the other architects involved in the design competition including Brigg, Wolstenholme & Thornely, John Belcher, William Emerson, Charles Edward Barry and Thomas Collcutt. The contractor who built the building was Mowlem.
One Great George Street is an early example of steel-frame technology in Britain, with the structural frame using approximately 1,227 tons of steel supplied by the Lanarkshire Steel Company.
This brief starts where responsible research should: with the source description of “One Great George Street” as building in Westminster, London. Everything that follows is an evidence route, not borrowed authority.
Why this record matters
The subject matters to the places & architecture register because the source frames it as building in Westminster, London. Its deeper value depends on whether names, dates, institutions and citations support that framing.
Maps, plans, fabric surveys and administrative records can establish how the site’s name, extent and function changed over time. The source revision retrieved here is dated Aug 29, 2026. The linked authority identifier is Q7092688. Authority coordinates are 51.501, -0.129. 3 of 3 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1989, 1839, 1913 and 1910.
Modern boundaries and familiar names can conceal earlier jurisdictions or structures that do not align with the present site. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Treat names, boundaries and functions as historically changeable. Maps, plans, inventories and administrative records can clarify what the place meant at different dates.
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Contemporary maps, plans, listed-building records, estate papers and the responsible local or national archive.
Three-step research path
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This entry incorporates text from “One Great George Street” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.