St James's is the grandest square quarter in London, a small wedge of Westminster between Piccadilly and the Mall that has been the address of kings, prime ministers, and exiled heads of state for three centuries. Laid out in the seventeenth century in the shadow of St James's Palace, it became the district where power lived, and its blue plaques read like a roll-call of British political history with a strikingly international cast folded in. Walk it in an afternoon and you pass a single square where three Prime Ministers once lived, the Pall Mall site of a king's mistress, the house where Chopin gave his last London performance, and the headquarters from which General de Gaulle led the Free French. Did you know one small square in St James's was home to three separate Prime Ministers?
St James's lies in the City of Westminster, bounded by Piccadilly to the north, the Haymarket to the east, the Mall and St James's Park to the south, and Green Park to the west. It takes its name from St James's Palace, still an official royal residence, and its character from the clubs, galleries, and gentleman's shops that grew up around the court. This is a walking guide to the blue plaques of St James's and the remarkable residents they record, part of the wider blue plaque scheme that marks London's history house by house.
The reason the plaques cluster so thickly here is simple: for two centuries this was where power chose to live. Its position beside St James's Palace and a short walk from Parliament made it the natural address for statesmen, courtiers, and the wealthy, and the great gentleman's clubs that still line Pall Mall and St James's Street, White's, Brooks's, the Reform, and others, grew up to serve exactly that world. That concentration of the governing class is why so many Prime Ministers, and so many of the foreign leaders who came to London seeking their support, ended up leaving their mark within these few streets. To walk St James's is to walk the private London of British power.
St James's Square: Three Prime Ministers and Two Pioneers
The heart of the quarter is St James's Square, and no other square in London carries a denser concentration of history on its plaques. At 10 St James's Square, now Chatham House, a single plaque records that three Prime Ministers lived in the house: William Pitt, Earl of Chatham (1708-1778), Edward Stanley, Earl of Derby (1799-1869), and William Ewart Gladstone (1809-1898). One address, three men who led the country, spanning more than a century of British government.
The square holds two more plaques that break from the political mould. At 12 St James's Square, a plaque marks Ada, Countess of Lovelace (1815-1852), the pioneer of computing, whose work on Charles Babbage's Analytical Engine is now seen as the first algorithm intended for a machine, covered in full in our guide to Ada Lovelace's London. And at 4 St James's Square, a plaque records Nancy Astor (1879-1964), the first woman to take her seat in Parliament. A square that held three Prime Ministers also held the first female MP and the founder of computer programming, which tells you something about the company St James's kept.
Pall Mall: A King's Mistress and an Abolitionist
Running along the southern edge of the quarter, Pall Mall was the most fashionable street in Restoration London, and its plaques reach back furthest of all. On the site of 80 Pall Mall, a plaque records Nell Gwynne, the actress and mistress of King Charles II, who lived here from 1671 to 1687 in a house given to her by the king. It is one of the few plaques in London to a royal favourite, and a reminder of how close this quarter always sat to the court at St James's Palace.
The same stretch of Pall Mall holds a very different story. At Schomberg House, 80-82 Pall Mall, a plaque records Ottobah Cugoano (born c.1757), an author and anti-slavery campaigner who lived and worked here between 1784 and 1791. Cugoano had been enslaved as a child in West Africa, gained his freedom in England, and became one of the leading Black voices in the early abolitionist movement, publishing a powerful attack on the slave trade. The building also carries a plaque to the painter Thomas Gainsborough (1727-1788), one of the greatest British portraitists, who lived at Schomberg House in his final years.
St James's Place and Arlington Street: Chopin and the Walpoles
Tucked between the square and Green Park lie two quiet streets thick with plaques. At 4 St James's Place, a plaque marks the composer Frédéric Chopin (1810-1849), recording that from this house in 1848 he went to the Guildhall to give his last public performance, a poignant footnote to a life cut short the following year. Nearby at 28 St James's Place, a plaque records the statesman William Huskisson (1770-1830), better remembered, unfairly, as the first person to be killed by a passenger train, at the opening of the Liverpool and Manchester Railway.
Arlington Street, running up toward Piccadilly, adds two Prime Ministers. At 5 Arlington Street, a plaque marks Sir Robert Walpole (1676-1745), generally regarded as Britain's first Prime Minister, together with his son Horace Walpole (1717-1797), the connoisseur, letter-writer, and author of the first Gothic novel. At 22 Arlington Street, its plaque tucked round the back overlooking Green Park, a plaque records Henry Pelham (c.1695-1754), another Prime Minister of the mid-eighteenth century. The clustering is no accident: this was where the governing class chose to live, within walking distance of the court and Parliament.
Carlton House Terrace and the Free French
Along the southern edge, overlooking the Mall, the grand terraces of Carlton House Terrace and Carlton Gardens hold some of the quarter's most consequential plaques. At 1 Carlton House Terrace, a plaque records George Nathaniel Curzon, Marquess Curzon of Kedleston (1859-1925), the statesman and Viceroy of India, who lived and died here. At 2 Carlton Gardens, a plaque marks Field Marshal Lord Kitchener of Khartoum (1850-1916), whose face, on the "Your Country Needs You" recruiting poster, became the defining image of the First World War.
But the most stirring plaque here is at 4 Carlton Gardens, where General Charles de Gaulle set up the headquarters of the Free French Forces in 1940. From this house, after the fall of France, de Gaulle rallied French resistance and led the movement that would eventually help liberate his country. It is a plaque that turns a quiet Westminster terrace into a piece of the history of the Second World War, and of modern France.
Jermyn Street to Haymarket: Newton, an Exiled Emperor, and a Vietnamese Founder
The eastern edges of St James's hold a scattering of plaques as varied as any in London. At 87 Jermyn Street, the street now famous for its shirtmakers, a plaque records that Sir Isaac Newton (1642-1727) lived here, in the years when the greatest scientist of his age was Master of the Royal Mint and President of the Royal Society. Nearby, at 1c King Street, a plaque marks Napoleon III (Louis-Napoléon Bonaparte), who lived here in 1848 during his London exile, shortly before returning to France to become, first President, then Emperor.
The far eastern edge, toward the Haymarket, holds two more surprises. On the Haymarket, a plaque records that Ho Chi Minh (1890-1969), the founder of modern Vietnam, worked in 1913 at the Carlton Hotel that once stood on the site, employed as a young man in its kitchens. Around the corner on Suffolk Street are plaques to the painter Richard Dadd (1817-1886), and to the great free-trade reformer Richard Cobden (1804-1865), who died at number 23. The archaeologist Sir Mortimer Wheeler (1890-1976) is commemorated on nearby Whitcomb Street, and on Piccadilly itself, at the Naval and Military Club, a plaque marks the former home of Lord Palmerston (1784-1865), the Prime Minister and Foreign Secretary who dominated mid-Victorian politics.
A Suggested St James's Walking Route
St James's is compact, and its plaques cluster tightly enough for a rewarding afternoon. Start at St James's Square for the three Prime Ministers of Chatham House, Ada Lovelace, and Nancy Astor, then walk south to Pall Mall for Nell Gwynne, Cugoano, and Gainsborough at Schomberg House. Turn toward St James's Place for Chopin, then up Arlington Street for the Walpoles and Henry Pelham.
From there, cross toward the Mall for Carlton Gardens and de Gaulle's Free French headquarters, Kitchener, and Curzon. Finish by walking east along Jermyn Street for Isaac Newton and out toward the Haymarket for Napoleon III and Ho Chi Minh. Allow a comfortable two hours, more if you pause at the galleries or the gentleman's shops along the way. For the neighbouring quarter just to the north, see our guide to Mayfair's blue plaques.
If you want to find these plaques as you walk, and keep a record of the ones you have visited, Legacy maps every blue plaque in St James's and across London, turning an afternoon among the squares and terraces into a collection you build over time. St James's proves that a few grand streets can hold the whole sweep of history, from a Restoration king's mistress to the founder of modern Vietnam, all within a short walk of the palace that gave the quarter its name.