South Street, Mayfair
street in Mayfair, London, England

South Street is a street in Mayfair, London, England. It runs west to east from Park Lane before merging into Farm Street.
Notable buildings include the private house, Aberconway House, listed for sale in 2007 by the developer and estate agent Portman Heritage at £46 million.
58-59 South Street is a mid 18th-century building that was remodelled in about 1936 by Sir Edwin Lutyens. It is a Grade II Listed Building.
Historical residents include the courtesan Catherine Walters who lived there from 1872 until her death in 1920, and the future British Prime Minister Sir Alec Douglas-Home, born in 1903, whose childhood London home was at 28 South Street, a house built in 1902 with eighteen front windows, which his family leased from the politician and stockbroker, Sir Cuthbert Quilter. John Pierpont Morgan lived at 2 South Street in 1901. He was an American financier and banker who dominated corporate finance on Wall Street throughout the Gilded Age. As the head of the banking firm that ultimately became known as J.P. Morgan and Co., he was the driving force behind the wave of industrial consolidation in the United States spanning the late 19th and early 20th centuries. It became the London home of the novelist and socialite, Barbara Cartland, from the 1930s until 1950.
This brief starts where responsible research should: with the source description of “South Street, Mayfair” as street in Mayfair, London, England. 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 street in Mayfair, London, England. 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 Oct 15, 2024. The linked authority identifier is Q28803180. Authority coordinates are 51.508, -0.152. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 2007, 1936, 1872 and 1920.
Architectural summaries often privilege surviving fabric and can understate demolished phases, contested use or displaced communities. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. 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.
- Historic place names
- Jurisdictional context
- Routes into maps and plans
Contemporary maps, plans, listed-building records, estate papers and the responsible local or national archive.
Three-step research path
- Establish the record: confirm the title “South Street, Mayfair”, its source revision and the description used here.
- Expand the search: follow South Street, Mayfair primary sources, South Street, Mayfair archive and South research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “South Street, Mayfair”?
- Which authority defined the place, boundary or structure at the relevant date?
- What physical evidence or contemporary plan supports the description?
Search terms from this dossier
This entry incorporates text from “South Street, Mayfair” 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.