Explore the real-world places that appear in Clown Town by Mick Herron. Each location on the map shows what happens there in the novel, the real history of the place, and what's there today. Featured locations include Slough House, Thames House (MI5 Headquarters), Spooks' College, Oxford (Bodleian-area), David Cartwright's House, Regent's Park and 7 more.
Aldersgate Street, Barbican, London EC1 — Headquarters of the slow horses
Slough House is the dilapidated Aldersgate Street office where Jackson Lamb holds court over MI5's disgraced and demoted officers — the slow horses. Lamb, magnificently slovenly and perversely brilliant, issues his usual blunt non-instructions to his agents, making clear that any harm that befalls them while ignoring his orders is categorically not his problem. The novel's central tension radiates outward from this cramped, damp building: Lamb's clowns are already in motion before he can stop them, and the reckoning he promises hangs over everything.
Aldersgate Street in the Barbican area has been part of the City of London's ancient street plan since medieval times. The area was heavily bombed during the Blitz and subsequently redeveloped, leaving a mix of post-war office blocks and older structures. The Barbican itself became a major residential and arts complex in the 1970s and 1980s.
Aldersgate Street today is a busy City of London thoroughfare lined with modern office buildings. The fictional Slough House is inspired by the real streets of the Barbican area, which visitors can walk freely. The nearby Barbican Centre is a major arts venue open to the public.
Visit: Barbican Centre (landmark)
Millbank, Westminster — 'The Park' in Slough House parlance
Diana Taverner, MI5's imperious First Desk, operates from the Park — the series' name for Thames House — where she is deep in a crisis involving an operation conducted during the height of the Troubles. The ugly historical secret threatens to become public, and Taverner, as calculating as ever, devises a scheme requiring a convenient dupe to take the fall. Her machinations at the Park set the novel's institutional conspiracy in motion, pulling River Cartwright and the slow horses into danger they barely see coming.
Thames House on Millbank has been the headquarters of MI5, the Security Service, since 1994. The imposing neo-classical building was constructed between 1929 and 1935 and was used by various government departments before MI5 moved in after their relocation from Gower Street. Its identity as MI5's home was officially confirmed only in the 1990s.
Thames House remains MI5's active headquarters and is not open to the public. The exterior can be viewed from Millbank and the Albert Embankment across the Thames. Security barriers surround the building and it is a recognizable landmark for Londoners and tourists alike.
Broad Street, Oxford — Where David Cartwright's library is bequeathed
The late David Cartwright, once a towering figure in British intelligence and River's grandfather, has left his personal library to the Spooks' College in Oxford — a fictional intelligence training institution. When River learns that a book from the collection appears to be missing — or perhaps never existed — he begins investigating, drawing him into the dangerous secrets his grandfather guarded in retirement. The library becomes the novel's inciting mystery, the thread that, once pulled, unravels everything.
Oxford has a long association with British intelligence. Many senior figures in MI5 and MI6 were educated at Oxford, and the city's colleges have historically been recruiting grounds for the intelligence services. The Bodleian Library, founded in 1602, is one of the world's greatest research libraries and the heart of Oxford's intellectual life.
The Bodleian Library complex, including the Radcliffe Camera and the Weston Library, is open to visitors for tours and exhibitions. Broad Street itself is one of Oxford's most visited thoroughfares, lined with colleges, bookshops, and cafes. The fictional Spooks' College is best mapped to this academic heart of the city.
Visit: Bodleian Libraries (library)
Rural Oxfordshire — The Old Spy's Retreat
David Cartwright, the late retired head of MI5 and River's grandfather, spent his final years in a quiet Oxfordshire house — the kind of English country retreat that senior establishment figures have always retreated to. Though Cartwright is dead as the novel opens, his presence saturates the story through River's memories and the secrets left behind in his library. The house represents the old world of British intelligence: discreet, paternalistic, and hiding darkness beneath a veneer of tradition.
Oxfordshire has long been home to retired establishment figures, academics, and intelligence officers. The county's market towns and villages — Woodstock, Burford, Chipping Norton — have housed generations of the British ruling class. The tradition of the country house as a place of quiet retirement after public service is deeply embedded in English culture.
The Oxfordshire countryside around Woodstock and Blenheim Palace is a popular destination for visitors. Blenheim Palace itself, the birthplace of Winston Churchill and a World Heritage Site, is open to the public and draws hundreds of thousands of visitors annually to this stretch of Oxfordshire.
Inner Circle, Marylebone — Taverner's symbolic domain
Regent's Park gives the Park its nickname in the Slough House series — MI5's informal shorthand for its own institution. Taverner and her colleagues refer to 'the Park' as a way of distinguishing their world from the chaos of Slough House. In Clown Town, as Taverner's scheme to use a dupe against old Troubles-era enemies takes shape, the ironic distance between the Park's manicured image and the dirty business of intelligence work is one of the novel's persistent, darkly comic contrasts.
Regent's Park was laid out by John Nash in the early 19th century as part of a grand urban scheme for the Prince Regent, later George IV. The Inner Circle contains Queen Mary's Gardens, famous for its rose collection. The park has remained one of London's premier green spaces for two centuries.
Regent's Park is fully open to the public and is one of London's Royal Parks. Queen Mary's Gardens, the Open Air Theatre, London Zoo, and boating lake all attract visitors year-round. It is a beloved green space in the heart of the city.
Visit: Regent's Park (park)
Islington / Barbican borderlands — The slow horses' off-duty refuge
The slow horses of Slough House have always found their way to nearby pubs when the weight of their demotion and Lamb's insults becomes too much to bear. In Clown Town, pub conversations serve as the novel's connective tissue — where agents compare notes, trade suspicions, and try to piece together what Taverner is really up to. These exchanges have the warmth and the melancholy of people who know they are considered expendable but refuse to behave as if they are.
Islington and the Barbican area have been part of London since the medieval period. By the Victorian era, the streets around Aldersgate and Goswell Road were dense with working-class pubs and gin palaces. Many traditional pubs in this area have survived into the 21st century despite widespread gentrification.
The streets around the Barbican and Islington border remain well supplied with traditional London pubs. The area around St John Street and Goswell Road retains a mix of old boozers and newer bars. It is one of the more walkable and pub-rich corners of inner London.
Visit: The Eagle (Farringdon) (restaurant)
Belfast, Northern Ireland — Site of the buried operation
The Troubles-era operation that threatens to blow up in Taverner's face took place in Belfast during the years of the conflict in Northern Ireland. The precise nature of what was done — and who authorised it — forms the dark historical secret at the novel's heart. Those involved are now threatening to go public, and the ugliness of state-sanctioned violence during the Troubles hangs over the entire plot as a reminder that the sins of intelligence work have very long half-lives.
Belfast was the epicentre of the Troubles, the ethno-nationalist conflict in Northern Ireland that lasted from the late 1960s until the Good Friday Agreement of 1998. Intelligence operations by MI5, the RUC Special Branch, and the British Army were conducted throughout the city, many of which remain controversial and the subject of ongoing inquiries decades later.
Belfast today is a transformed city, with the Titanic Quarter and Belfast Titanic museum, the Cathedral Quarter, and a thriving cultural scene drawing hundreds of thousands of tourists annually. Historical tours of the city's divided past — including the peace walls and republican and loyalist murals — are widely available.
Visit: Titanic Belfast Museum (museum)
Cheltenham, Gloucestershire — The wider intelligence apparatus
The intelligence world of Slough House always exists within a broader ecosystem that includes GCHQ, the signals intelligence agency based in Cheltenham. In Clown Town, as Taverner's operation becomes increasingly precarious, the question of who else in the intelligence community knows what — and who might be monitoring whom — is never far from the surface. The existence of GCHQ represents the surveillance infrastructure that both enables and threatens the careers of everyone in the novel.
GCHQ — Government Communications Headquarters — has been based in Cheltenham since the 1950s, when it relocated from Eastcote in London. The famous 'Doughnut' building, completed in 2004, replaced the old Benhall and Oakley sites. GCHQ traces its origins to the Government Code and Cypher School at Bletchley Park during World War II.
The GCHQ Doughnut building is visible from certain public vantage points around Cheltenham but is not open to the public. Cheltenham itself is a handsome Regency spa town with a thriving festival scene, including the famous Cheltenham Literature Festival and the Gold Cup horse racing festival.
Market Street, Oxford — River Cartwright in the city
As River Cartwright kills time in Oxford while awaiting medical clearance to return to active duty, the city's streets and covered market provide the mundane backdrop against which his obsession with his grandfather's missing book grows. The market's ordinary bustle — butchers, bakers, coffee shops — contrasts with the increasingly alarming secrets River is uncovering about David Cartwright's past. Oxford functions in the novel as a place where the comfortable English establishment conceals its worst historical deeds.
Oxford's Covered Market has been in continuous operation since 1774, when it was built to clear street traders from the town's main roads. The market has retained much of its Victorian character and is one of Oxford's most authentic surviving historic spaces, less touristic than the colleges but deeply embedded in the city's daily life.
The Covered Market remains a fully operational market with independent butchers, bakers, florists, cafes, and clothing shops. It is open to the public every day and is free to enter. It is considered one of Oxford's hidden gems and is listed as a heritage asset.
Visit: Oxford Covered Market (landmark)
Westminster, London SW1 — The machinery of government
Whitehall looms in the background of Clown Town as the political world that shapes and constrains MI5's operations. Diana Taverner must manage not only the intelligence threat but the political fallout of a Troubles-era secret becoming public. The unnamed ministers and Home Office officials who Taverner must manage represent the civilian oversight that is always a step behind the intelligence world's actual activities — and always potentially catastrophic when they catch up.
Whitehall has been the centre of British government since the Palace of Whitehall was the principal royal residence in the 16th and 17th centuries. After the palace burned in 1698, the street became lined with government ministries. It remains the administrative heart of the United Kingdom, housing the Cabinet Office, MOD, Foreign Office, and Treasury.
Whitehall is open to pedestrians and is one of London's great ceremonial streets. Key sites include the Cenotaph, the entrance to Downing Street, Horse Guards Parade, and the Banqueting House — the only surviving part of the old Palace of Whitehall — which is open to the public as a historic site.
Visit: Banqueting House (historic site)
St Giles' Street, Oxford — The broad avenue of Oxford's intelligence world
St Giles' is Oxford's grandest street, flanked by colleges and leading toward the Ashmolean Museum, and it is the kind of avenue that David Cartwright would have walked as a young man being recruited into the intelligence services. River Cartwright, retracing his grandfather's Oxford connections as he investigates the missing book, finds himself in this old establishment landscape — the world that produced the postwar generation of British spies and their complicated moral legacies.
St Giles' Street has been one of Oxford's principal thoroughfares since medieval times. It is flanked by St John's College and Balliol College to the east, and the Ashmolean Museum to the south. The street hosts the famous St Giles' Fair each September, one of England's oldest street fairs, dating to 1624.
St Giles' is fully open to pedestrians and is one of Oxford's most pleasant walks. The Ashmolean Museum at its southern end is free to enter and is one of the world's great university museums. The street's cafes, including the famous Lamb and Flag pub associated with C.S. Lewis and J.R.R. Tolkien, draw visitors year-round.
Visit: Ashmolean Museum (museum)
Liverpool Street, City of London — Transit and tradecraft
The streets around Liverpool Street Station — a major terminus connecting London to East Anglia and the commuter belt — serve as the kind of anonymous, crowd-rich urban environment in which the slow horses move when they need to shake surveillance or make unobserved contacts. In the world of Clown House tradecraft, busy transport hubs are both cover and exposure. The station's perpetual rush of commuters gives characters like River exactly the kind of anonymity that trained intelligence officers exploit.
Liverpool Street Station was first opened in 1874 and replaced the earlier Bishopsgate Station. It was extensively rebuilt in the 1980s and 1990s as part of the Broadgate development. The station takes its name from Liverpool Street, which was itself named after Lord Liverpool, Prime Minister from 1812 to 1827.
Liverpool Street is one of London's busiest railway termini, serving over 67 million passengers per year. The surrounding Broadgate and Spitalfields areas are lively with restaurants, bars, and markets — including the famous Old Spitalfields Market. The station is a major interchange on the Elizabeth line.
Visit: Old Spitalfields Market (landmark)
More by Mick Herron: All Mick Herron books
Other nearby maps: The Pillars of the Earth by Ken Follett locations map · The Complete Sherlock Holmes by Arthur Conan Doyle locations map · Patriot Games by Tom Clancy locations map · The Time Machine by H.G. Wells locations map