Old London Bridge: houses, chapel, fire and traitors' heads

Place card

Place: the site and approaches of Old London Bridge, between St Magnus the Martyr in the City and the Southwark riverfront, slightly downstream of the present London Bridge.

Area: the Thames between the City of London and Southwark.

Nearest stations: Monument and Bank on the north bank; London Bridge on the south bank.

Period: stone construction began in 1176 and was substantially complete by 1209; the medieval bridge remained in use for more than six centuries and was dismantled in 1831–32 after a replacement opened upstream.

Themes: medieval engineering, bridge houses and commerce, the chapel of St Thomas Becket, river danger, defence, public punishment, fire and urban infrastructure.

Access: the medieval bridge no longer stands. Its alignment can be understood from the approaches near St Magnus the Martyr and the riverfront, while collections and historic images supply the lost elevations. Film from public space without obstructing the present bridge or station routes; check permissions before recording inside churches or using archive images.

The setting

Stand on the present London Bridge and look downstream. The lost bridge did not occupy exactly the same line. For more than six hundred years a dense stone structure crossed the river a little to the east, carrying houses, shops, gates, a drawbridge, a chapel, water machinery and the daily traffic of a city that had almost no alternative.

It was not a clean horizontal line. Nineteen narrow arches pressed against the tide. Timber buildings leaned out from the deck. Smoke emerged from chimneys. Signs swung above a roadway so confined that two carts could turn a crossing into a negotiation. Beneath, water accelerated between massive piers and their protective starlings. To “shoot the bridge” in a small boat was to trust a boatman’s judgement against a man-made rapid.

At the Southwark gate, human heads could be displayed on poles as warnings to everyone entering the City. Near the middle, worshippers descended into a chapel built into a pier. London Bridge was street, border, market, church, fortress, landlord and hydraulic machine at once.

The modern river gives almost none of this away. That absence should remain visible in the episode. The story is not an invitation to pretend that the concrete bridge is medieval. It is an exercise in rebuilding a vanished environment from documented dimensions, surviving images, institutional records and carefully labelled interpretation.

The story

London needed a crossing before it needed a postcard. A bridge near this part of the Thames existed in Roman Londinium, though its exact form and succession are archaeological questions rather than one uninterrupted structure. Later timber bridges were repaired, burnt, damaged by storms and rebuilt. The medieval stone bridge that dominates the story was a new project, not simply a Roman bridge clad in masonry.

Work began in 1176 under Peter de Colechurch, a cleric associated with the fraternity responsible for the crossing. City of London’s official history calls him a visionary; later tradition treats him as architect and bridge master. The distinction between designer, fundraiser, organiser and supervisor cannot always be drawn with modern professional precision. What is secure is the association of his name with a construction campaign that lasted thirty-three years and reached completion in 1209.

The result stretched roughly nine hundred feet across the river and used nineteen arches supported by twenty piers, with a drawbridge opening included in the system. The arches were not equal, geometrically regular spans like those on an idealised reconstruction. Building campaigns, river conditions and repairs produced irregularity. Wide masonry piers and timber starlings occupied a large part of the channel.

That obstruction made the bridge both strong and dangerous. The tide forced water through narrow gaps. Levels could differ across the crossing, and fast currents developed between the piers. Later waterwheels and mills increased resistance. The popular phrase “shooting the bridge” refers to passing through an arch in a boat, a manoeuvre that could be frightening or fatal. It should not be described as a permanent waterfall of one fixed height; tide, season, arch and later alterations changed the conditions.

The bridge was also a defensive threshold. Until Westminster Bridge opened in the eighteenth century, this remained London’s only permanent road crossing over the tidal Thames. Anyone bringing goods, armed followers or news from the south converged on it. Gates, chains and the drawbridge could restrict movement. Control of London Bridge mattered during rebellions and invasions because the bridge was a route into the City and a barrier across the river.

Its financial history is as important as its battles. The charity now known as City Bridge Foundation traces the maintenance estate back about nine centuries. Rents, tolls, bequests and property associated with the bridge accumulated into Bridge House Estates. Houses and shops were not decorative additions alone: they produced revenue that helped sustain an expensive public work. The modern foundation’s ownership of five City bridges is a living institutional descendant of this medieval maintenance problem.

The earliest reference to houses on the stone bridge comes from the opening years of the thirteenth century. Over time the deck became a built street. Shops sold pins, metalwork, textiles and other goods; inns, workshops, storerooms and homes brought people onto the river day and night. John Stow in the late sixteenth century thought the bridge resembled a continuous street more than a crossing.

That comparison should not make the houses comfortable by default. Buildings were repeatedly altered and extended beyond the masonry deck on timber supports. Upper storeys could project over the roadway or water. Fire, damp, vibration, smoke, waste, overcrowding and structural movement shaped daily life. A window offered an extraordinary river prospect, but a resident also heard wheels, animals, vendors, bells, water and neighbours through thin walls.

The roadway narrowed between the buildings. Traffic did not follow modern lanes with predictable right of way. Porters carried loads, livestock moved toward markets, pilgrims travelled to Canterbury, carts met pedestrians and sellers used the edge of the public route. The bridge could transform a short distance into a slow passage. Congestion was not a picturesque inconvenience; it affected trade, emergency movement and the lives of residents.

Near the centre stood the Chapel of St Thomas the Martyr, dedicated to Thomas Becket, murdered in Canterbury Cathedral in 1170 and canonised soon afterwards. London adopted him as a patron, and the bridge lay on the pilgrimage route from the capital toward his shrine. Historic records place the chapel on a major pier, with an upper worship space and a lower level built close to the river.

Peter de Colechurch was traditionally buried there after his death before the bridge was finished. When the old crossing was dismantled in the nineteenth century, human remains found near the chapel were attributed to him, but the identification was not secured by modern forensic evidence and the bones were not preserved for new testing. “Peter’s grave was found” is therefore better presented as a contemporary attribution than a proven identification.

The chapel reveals how engineering and religion overlapped. Donations, prayers for safe passage and the cult of Becket belonged to the same bridge economy as rents and tolls. The building’s pier had to carry masonry while resisting current. Worshippers entered from the deck, and the lower level could be approached from the river. A bridge chapel was not a decorative miniature church; it gave spiritual meaning and institutional presence to a dangerous piece of infrastructure.

The structure faced disaster almost immediately. A severe fire in 1212 spread across buildings near both ends and damaged houses and the chapel. Chroniclers gave dramatic and sometimes enormous casualty figures. Modern retellings should not repeat a precise total without discussing the source problem. What matters securely is the combination that made the event lethal: fire, confined movement, crowds on the crossing and limited escape.

Fire returned throughout the bridge’s life because timber houses, hearths, workshops and narrow access sat above a strategic stone platform. A major blaze in 1633 destroyed many houses on the northern portion. The cleared stretch was not fully rebuilt before the Great Fire of 1666. When flames reached the City end from Pudding Lane, the earlier gap acted as a firebreak and helped stop the disaster from travelling across the entire bridge into Southwark.

The statement needs precision. Old London Bridge did not pass through 1666 untouched: buildings at the City end and nearby St Magnus were damaged or destroyed, and the neighbourhood was transformed. Yet the discontinuity created by the 1633 fire prevented one continuous line of bridge houses from carrying flames south. A previous catastrophe altered the path of a later one.

The bridge’s darkest display developed at its southern gateway. From the early fourteenth century, the heads and sometimes quarters of people convicted of treason were exposed on spikes. The display faced travellers arriving from Southwark. It converted a legal sentence into prolonged political theatre: punishment continued after death, and the City’s threshold announced the consequences of attacking royal authority.

William Wallace’s head was displayed after his execution in 1305. Later victims included rebels and statesmen such as Jack Cade and Thomas More. Wat Tyler’s head was also placed at the bridge after his killing during the Peasants’ Revolt. Lists vary because remains could be transferred, replaced or described by chroniclers at different times. Avoid claiming that every famous traitor stayed there for one known duration or that hundreds of heads permanently lined the whole bridge.

Preservation methods were practical and horrific. Heads might be parboiled or treated and covered with tar to slow decay before being fixed to poles. Birds, weather and decomposition still acted on them. The image was intended to be visible, not hygienic. For a podcast, do not use gore merely as atmosphere. Explain the legal category of treason, the control of entrances and the way the state made a body into a message.

The exact display point changed as the south gate changed. The Stone Gateway and later structures carried spikes; after Nonsuch House transformed the approach, the display occupied adjacent positions. Images made centuries later often compress phases into one spectacular skyline. Date every illustration before using it to prove architectural detail.

Nonsuch House was the Tudor bridge’s most striking building. Erected in the late 1570s near the Southwark end, it was a large timber gatehouse spanning the roadway. Parts were prefabricated in the Low Countries and assembled in London. Its carved façades, towers and prominent position created a ceremonial entrance. The name boasted that there was “none such”.

Popular accounts sometimes say it was built without nails. Timber framing does depend heavily on fitted joints and wooden pegs, but an absolute claim about the absence of every metal fixing should be treated cautiously. More important is what the building represented: international craftsmanship, speculative property and political display placed above an already ancient transport structure.

The bridge changed from below as well. In 1582 Peter Morice installed waterwheels under northern arches to drive pumps. Thames water was raised and distributed through pipes to parts of the City. Additional wheels powered grain mills near the southern end. This did not turn the Thames into clean modern tap water. Supply was intermittent, river quality varied and private access depended on contracts and infrastructure. Still, the machinery made the bridge part of London’s early utility network.

Waterwheels, starlings and narrow arches intensified hydraulic effects. They also show why the crossing cannot be reduced to a street of quaint houses. It extracted rent above, mechanical power below and political control across. Each function competed with river navigation and structural safety.

By the eighteenth century the bridge looked increasingly incompatible with metropolitan growth. Westminster Bridge opened a second permanent crossing, while traffic and larger vessels exposed Old London Bridge’s limitations. The houses were purchased and removed between the late 1750s and early 1760s. A central opening was widened to improve navigation. The inhabited skyline disappeared decades before the medieval masonry itself.

Paintings must therefore be dated carefully. A view made around 1795 can show the old stone arches without the famous bridge houses. It is not evidence that the buildings never existed. Conversely, a Tudor reconstruction cannot illustrate the bridge immediately before demolition. “Old London Bridge” refers to a structure altered across six centuries, not one frozen appearance.

Engineer John Rennie designed a replacement upstream. The new bridge opened in 1831, and the medieval crossing was dismantled in 1831–32. Demolition was archaeological destruction and an opportunity for observation. Piers, foundations and the chapel became briefly accessible, but recording standards were uneven and desirable fragments entered collections or new landscapes without complete context.

The much repeated story that an American later bought “the wrong London Bridge” belongs to a different bridge: Rennie’s nineteenth-century replacement was sold and reconstructed in Arizona in the twentieth century. It was not Peter de Colechurch’s medieval bridge, and there is no sound evidence that the purchaser believed he was buying Tower Bridge. Separating the three crossings prevents a comic myth from swallowing the engineering history.

Today the old alignment survives through urban clues rather than an intact monument. St Magnus the Martyr marks the City approach; its churchyard occupied part of the road leading to the medieval crossing. On the south side, the riverside near Southwark Cathedral opens the pilgrimage and market context. The present bridge supplies a safe overview but follows the later alignment.

Old London Bridge matters because it joined systems usually studied apart. Its chapel belonged to pilgrimage; its gates to defence; its heads to criminal justice; its houses to private life and rent; its wheels to water and food; its arches to navigation; its fires to urban risk. A twenty-minute story can describe a lost wonder. A thirty-minute story should show the costs of making one structure do almost everything.

People to remember

Peter de Colechurch stands at the beginning of the stone campaign, but he did not quarry, transport and set every block alone. Remember masons, carpenters, boatmen, labourers, fundraisers and the bridge fraternity who sustained thirty-three years of work.

Remember residents and shopkeepers as tenants of infrastructure. Their rents helped maintain the crossing, while their buildings increased weight, congestion and fire risk. Watermen lived with the dangerous currents created by decisions above them.

Thomas Becket never worshipped in the completed chapel; his posthumous cult gave it meaning. Pilgrims, priests and donors turned the bridge into part of a sacred route. The anonymous people displayed at the gate should not vanish behind a list of famous heads.

Finally remember surveyors, engineers, demolition workers, collectors and artists. Their records allow the bridge to be reconstructed, but each chose what to measure, save or dramatise.

Fact, interpretation and legend

Documented: stone construction began in 1176 and reached completion in 1209; the bridge used nineteen arches and carried houses, shops, a chapel, gates and a drawbridge; heads of executed traitors were displayed at the Southwark approach; a 1633 fire created a gap that checked the spread of the Great Fire in 1666; the bridge was dismantled in 1831–32.

Probable or phase-dependent: Peter de Colechurch combined technical, administrative and fundraising roles; his body was buried in the bridge chapel; hydraulic conditions beneath particular arches were extremely dangerous; building density and population varied substantially by century.

Not demonstrated: one exact appearance for all six centuries; a fixed number of residents at every date; one permanent height difference in the water; forensic proof that nineteenth-century bones belonged to Peter; an exact duration for every displayed head.

Legend or misleading simplification: the 1212 fire killed one securely known enormous total; Nonsuch House contained no metal fixing of any kind; the American buyer of Rennie’s bridge thought he was buying Tower Bridge; the medieval bridge sold to Arizona.

The place today

Begin at St Magnus the Martyr and show the narrowing approach toward the lost line. Then move to the riverside and look east of the current bridge. Use a map overlay rather than pointing vaguely at the entire Thames. Cross by the present footway and finish near Southwark Cathedral, linking the southern gate with pilgrimage and market routes.

Do not describe surviving nineteenth- or twentieth-century masonry as part of Peter de Colechurch’s bridge unless a collection record confirms the provenance. Archive paintings and models are essential, but identify whether they show Tudor houses, the post-fire bridge, the cleared Georgian arches or an imaginative reconstruction.

Sound design can layer carts, bells, sellers, tide and timber creaks, but label composed scenes. Current traffic, trains and river wash provide honest location audio. Graphic animation is especially useful for showing the irregular arches, starlings and the movement of water.

Research bibliography

S0020. City of London, Bridges: London Bridge — official construction dates, dimensions, Peter de Colechurch and replacement chronology.

S0021. London Museum, London Bridge — museum synthesis of houses, chapel, defence, fires, traitors’ heads and later crossings.

S0022. Historic England Research Records, Old London Bridge (Hob Uid 404697) — archaeological chronology of arches, houses, chapel, gate, heads and waterworks.

S0023. English Heritage, Old London Bridge: A 17th-century Masterpiece — analysis of the inhabited bridge through Claude de Jongh’s painting and its architectural phases.

S0024. City of London, Shakespeare self-guided walk — official description of the Tudor bridge as a long inhabited street with specialised shops.

S0025. City of London, Conservation of London Bridge by Daniel Turner — evidence for the Georgian bridge after house removal and central-arch alterations.