There is a particular quality to the light inside The Flask on a winter afternoon. It arrives through leaded windows with the hesitancy of a guest unsure of their welcome, falling across oak panelling that has absorbed three centuries of conversation, tobacco smoke, and something less easily explained. Regulars will tell you, with the practiced casualness of people who have told the story many times, that the pub is haunted. They will tell you this without embarrassment, without theatrical widening of the eyes. In Hampstead, a ghost is simply another long-standing resident, and The Flask has more of them than most addresses in NW3.
Standing at 14 Flask Walk, tucked into the narrow pedestrian lane that descends from the High Street toward Well Walk, The Flask occupies a building whose origins stretch back to at least 1700. Its name alone is a fossil of Hampstead's spa era, a time when the village's fortune was measured not in property prices but in the iron-rich spring water that bubbled from the Heath and was sold in small glass flasks to visitors from the city below. The pub served as the principal point of sale for these vessels, and the name stuck long after the last flask was corked and the spa fell from fashion. To drink in The Flask today is to drink in the sediment of history itself, layer upon layer of meaning compressed into the low-ceilinged rooms of a building that refuses to let go of its past.
Origins in the Spa Era
The story of The Flask begins with water rather than ale. Around 1698, a chalybeate spring was identified on the Heath, its iron-rich waters declared beneficial for an extraordinary range of ailments including poor digestion, melancholy, and what the medical profession of the day referred to delicately as disorders of the spleen. Hampstead, then a modest hilltop village surrounded by farmland and heath, found itself suddenly fashionable. Londoners made the journey north along the Hampstead Road, climbing the steep lanes to take the waters at the Well Walk pump room, and they needed somewhere to rest, eat, and refresh themselves with something rather more potent than mineral water.
The Flask emerged as a natural hub of this trade. Its location on the path between the High Street and the wells was commercially ideal, and it served a dual purpose: dispensing ale and food to visitors while also selling the small glass flasks from which customers could drink the spring water. The name was not originally attached to the pub itself but to the vessels it sold. A flask of Hampstead water cost threepence, a price that included the glass container, and the pub became so associated with the trade that the name transferred permanently to the building and eventually to the lane itself. Flask Walk, one of the most charming passages in all of London, owes its identity to this long-vanished commerce.
The spa era brought prosperity and a degree of notoriety to Hampstead. The pump room attracted a crowd that mixed genuine invalids with pleasure-seekers, gamblers, and the fashionable idle. The area around Well Walk developed assembly rooms, a chapel of ease, and a scattering of lodging houses. The Flask benefited from all of this traffic. It was the first and last stop for visitors arriving from or departing to London, and its tap room became a clearing house for gossip, commercial dealing, and the social manoeuvring that defined Georgian leisure culture. By the 1720s, the pub had established itself as an institution, its identity already layered with the memories of its first generation of customers.
When the spa eventually declined in the latter half of the eighteenth century, overtaken by the superior attractions of Bath, Tunbridge Wells, and the seaside resorts, The Flask survived by adapting. The flask sellers disappeared, the pump room fell into disrepair, and the assembly rooms were converted to other uses. But the pub endured, drawing its custom now from the village itself rather than from visitors. It had become, as the best pubs do, a fixture of the community, inseparable from the identity of the place. The ghosts of the spa era lingered in the name above the door and in the flagstones worn smooth by three decades of fashionable feet.
Highwaymen, Rogues, and the Road to London
The route between London and Hampstead in the seventeenth and eighteenth centuries was not a journey to be undertaken lightly after dark. The road climbed through open heathland and patches of woodland that offered ideal cover for the highwaymen who plagued the approaches to the city. Hampstead Heath itself, wild and sparsely settled, was a notorious hunting ground for these mounted robbers, and The Flask, standing at the edge of the village, occupied a liminal position between the relative safety of the settlement and the dangerous darkness of the Heath beyond.
Several highwaymen are associated with the pub by tradition, though the documentary evidence is, as one might expect, patchy. The most persistent legend connects The Flask with Dick Turpin, the Essex-born butcher turned horse thief turned highwayman whose exploits have been so thoroughly mythologised that separating fact from fiction is largely a futile exercise. Turpin is supposed to have used The Flask as a drinking hole and occasional hideout, slipping into the village between robberies on the Heath. Whether he actually did so is unknown, but the legend has attached itself to the building with the tenacity of a barnacle. The pub's dark corners and multiple exits would certainly have suited a man in need of a quick escape.
More credible, perhaps, are the associations with lesser-known highway robbers who operated on the Heath during the early eighteenth century. The Hampstead Road was a regular target, and the village's taverns would have been natural gathering places for men whose profession required regular intelligence about the movements of wealthy travellers. Court records from the period mention several arrests in Hampstead itself, and at least one highwayman is recorded as having been taken while drinking in a village alehouse, though the specific establishment is not named. The Flask's proximity to the Heath and its position on the main road make it a strong candidate.
The highwayman era came to an end gradually as the road was improved, street lighting extended, and the Heath itself became more closely monitored. By the early nineteenth century, the mounted robber was a figure of romance rather than terror, and The Flask's association with the trade had become a selling point rather than a source of anxiety. The pub began to cultivate its outlaw heritage, adding to its store of stories and legends with each passing decade. Today, the highwayman connection is part of The Flask's identity, mentioned in guidebooks and whispered to tourists, though the reality was almost certainly more sordid and less glamorous than the mythology suggests.
The Ghost Stories
It is the ghosts, however, that have given The Flask its most enduring reputation. The pub has been described by paranormal investigators, local historians, and the landlords themselves as one of the most haunted buildings in London, and the catalogue of reported phenomena is extensive and various. Cold spots, unexplained footsteps, glasses moving of their own accord, doors opening and closing without assistance, shadowy figures glimpsed in peripheral vision and gone when looked at directly: the standard repertoire of pub haunting, perhaps, but reported with unusual consistency over a remarkably long period.
The most frequently reported apparition is that of a young woman, sometimes described as wearing clothing of the mid-eighteenth century, who has been seen in the main bar area and on the staircase leading to the upper floors. She is said to appear most often in the early evening, standing quietly near the fireplace or moving slowly toward the rear of the building before vanishing. Several landlords over the years have reported encountering her, and at least one is said to have left the position prematurely, citing the disturbances as a contributing factor. The identity attributed to this ghost varies with the telling. Some accounts connect her to a suicide that supposedly took place on the premises, a young woman disappointed in love who took her life in one of the upstairs rooms. Others suggest she was a servant at the pub, or a visitor from London who died of the very ailments the spa water was supposed to cure.
A second ghost, reported less frequently but with considerable conviction by those who claim to have encountered it, is that of a man in a cavalier-era hat and cloak, seen in the cellar and the passageway behind the bar. This figure is sometimes identified as a Royalist soldier from the Civil War period, though the pub's documented history does not extend back quite that far. More inventive accounts connect him to a duel fought near the premises, or to a murder committed during a robbery. The cellar, with its vaulted ceiling and uncertain lighting, is precisely the kind of space that invites such stories, and several members of bar staff over the decades have reported a marked reluctance to descend there alone, particularly after closing time.
A third phenomenon, less dramatic but perhaps more unsettling for its ordinariness, involves the persistent sound of a conversation in the empty bar. Staff arriving in the morning to open up have reported hearing the murmur of voices from beyond the locked doors, a sound that ceases the moment the door is opened. This has been reported independently by multiple employees over different periods, lending it a consistency that the more spectacular ghost stories sometimes lack. Whether it represents an acoustic peculiarity of the building, a memory etched into the fabric of the walls by centuries of talk, or something genuinely supernatural is a question that The Flask, characteristically, declines to answer definitively.
Paranormal investigation groups have visited The Flask on multiple occasions, bringing with them electromagnetic field meters, infrared cameras, and the earnest seriousness of people who regard ghost hunting as a scientific endeavour. The results have been, as such results always are, inconclusive but suggestive. Temperature anomalies have been recorded in the cellar and on the staircase. Unexplained sounds have been captured on audio equipment. Photographs have occasionally shown anomalies that the investigators consider significant and sceptics consider artefacts of digital compression. The Flask accommodates all interpretations with equal hospitality, as a good pub should.
Literary and Artistic Connections
The Flask's guest list over the centuries reads like an index to English literary and artistic history, though the attributions vary in reliability from the well-documented to the frankly speculative. The pub's proximity to the homes and haunts of some of England's greatest writers, painters, and thinkers has made it a natural gathering place for the creative classes, and its atmospheric interior has provided the setting for countless scenes of literary fellowship, artistic debate, and the kind of productive idleness that often precedes great work.
Samuel Richardson, the novelist whose Clarissa and Pamela helped to establish the English novel as a literary form, is among the earliest literary figures associated with The Flask. Richardson lived and worked in Hampstead during the 1740s, and his correspondence mentions the village's taverns with the appreciative familiarity of a regular customer. Whether he drank specifically at The Flask is not confirmed by documentary evidence, but the pub's position on Flask Walk, directly on the route between the High Street and the wells where Richardson is known to have taken the waters, makes it overwhelmingly likely.
By the Romantic period, The Flask had become part of the landscape that attracted poets and painters to Hampstead in such numbers. John Keats, who lived nearby on what is now Keats Grove, walked Flask Walk regularly, and tradition associates him with the pub, though his biographers are cautious about specific attributions. More confidently documented is the connection with Leigh Hunt, the essayist and editor who was central to the Hampstead literary circle that included Keats, Shelley, and Lamb. Hunt was a convivial presence in Hampstead's social life, and his writings on the village mention its public houses with evident affection.
In the Victorian era, The Flask's literary connections continued to accumulate. George du Maurier, the Punch cartoonist and novelist whose Trilby was one of the great bestsellers of the 1890s, lived nearby and is traditionally associated with the pub. His satirical drawings of Hampstead life, with their sharp eye for social pretension and their affectionate observation of village manners, capture precisely the atmosphere that pubs like The Flask fostered. Robert Louis Stevenson, during his periods of residence in Hampstead, is another figure claimed by the pub's oral tradition, though once again the documentary evidence is more suggestive than conclusive.
The twentieth century brought a new wave of literary and artistic regulars. Dylan Thomas is said to have drunk at The Flask during his London years, adding Welsh eloquence to the pub's already cosmopolitan atmosphere. More recently, the pub has been associated with various figures from the Hampstead intellectual milieu, though contemporary privacy conventions make specific attributions inadvisable. What can be said with confidence is that The Flask has maintained, across more than three centuries, its character as a place where the creative and the ordinary mingle without self-consciousness, where a conversation about poetry might be overheard at the next table to a discussion of football results, and where the ghosts of literary history drink alongside the living with perfect equanimity.
The Architecture and Interior
The building that houses The Flask has been altered, extended, and refurbished many times over its three-century history, but its essential character has survived these interventions with remarkable resilience. The current structure is predominantly Georgian in date, with elements that suggest earlier origins and additions that extend into the Victorian period and beyond. It presents to Flask Walk a facade of modest proportions, its entrance set slightly below street level, requiring customers to step down into the bar in a movement that has the psychological effect of crossing a threshold into a different world.
The interior is divided into several connected spaces, each with its own character and atmosphere. The main bar area retains its oak panelling and low ceiling, creating an intimacy that larger, more recently constructed pubs struggle to achieve. The fireplace, which remains functional, is the focal point of the room in winter, and its mantelpiece has served as an informal noticeboard and display shelf for generations. Above the bar, the ceiling beams show the signs of age and use that no amount of artificial distressing can replicate, their surfaces darkened by centuries of smoke and polished by the accidental touch of countless hands.
The rear rooms, accessed through a narrow passage that contributes significantly to the pub's atmospheric qualities, offer a different experience. Lighter and more spacious than the front bar, they open onto a small garden area that provides, in the summer months, one of the most pleasant outdoor drinking spaces in north London. The garden is sheltered by mature trees and bounded by the walls of neighbouring properties, creating a sense of seclusion that seems improbable given the urban density of the surrounding area. It is in this garden that many of the pub's ghost stories have their origin, with patrons reporting the sensation of being observed from the upper windows of the building when no one is upstairs.
The cellar, accessible by a steep staircase behind the bar, is the part of the building that most strongly evokes the pub's antiquity. Its vaulted brick ceiling and flagstone floor predate the current structure and may represent survivals from an earlier building on the site. The temperature down here is notably lower than in the rooms above, a fact that has been attributed variously to the natural insulating properties of underground construction and to the presence of the pub's most active ghost. Barrels of ale have been stored in this space for three hundred years, and the atmosphere carries a complex scent of damp stone, old wood, and the sweetish ghost of spilled beer that has seeped into the fabric of the floor over generations.
From a conservation perspective, The Flask presents the characteristic challenges and rewards of a building that has been in continuous commercial use for centuries. Its fabric contains evidence of multiple phases of construction and alteration, each layer revealing something about the priorities and tastes of its period. The Georgian panelling sits alongside Victorian tile work and twentieth-century interventions, creating a palimpsest of styles that somehow coheres into a unified whole. Any renovation work on such a building requires sensitivity to this accumulated character, an understanding that the value of The Flask lies not in any single architectural feature but in the totality of its history made manifest in wood, brick, glass, and stone.
Flask Walk: The Shopping Parade and Its Character
The Flask does not exist in isolation. It is the anchor of Flask Walk itself, a narrow pedestrian lane that runs from the High Street to Well Walk and constitutes one of the most distinctive commercial thoroughfares in London. The walk is lined with small, independently owned shops whose character and quality reflect the particular tastes of the Hampstead community, and the pub's presence at the heart of this parade has helped to define the lane's identity for three centuries.
Flask Walk was originally the principal route between the village centre and the wells, and its commercial development followed the spa trade. As visitors made their way to and from the pump room, enterprising residents opened shops along the path, offering provisions, souvenirs, and the various goods and services that a leisure crowd demanded. The lane's narrow width, a consequence of the medieval plot boundaries that preceded its commercial development, created an intimacy that survives today. Walking along Flask Walk is a fundamentally different experience from walking along the High Street; the scale is human, the pace is slower, and the relationship between pedestrian and shopfront is closer and more personal.
Today, Flask Walk's shops include booksellers, antique dealers, delicatessens, and specialist retailers whose stock reflects the cultural interests of the neighbourhood. The lane has resisted, more successfully than most London shopping streets, the homogenising pressure of chain retail. Each shop has its own personality, its own history, and its own relationship with the community. The Flask, standing at the centre of this parade, functions as a kind of village green in miniature, the communal space where the lane's various constituencies meet, mingle, and exchange the gossip and information that bind a neighbourhood together.
The physical character of Flask Walk has been shaped by the same geological and topographical factors that determined the development of Hampstead as a whole. The lane follows a gentle downward gradient from the High Street toward Well Walk, a descent that provides views over the rooftops of the lower village and, on clear days, distant glimpses of the city beyond. The buildings that line it are predominantly Georgian and early Victorian, their brick facades and sash windows creating a unified streetscape that feels both grand and intimate. Several of these buildings have been sympathetically restored in recent years, their original architectural details carefully preserved or reinstated, contributing to the lane's quality as one of the best-preserved Georgian commercial streets in London.
The relationship between The Flask and Flask Walk is symbiotic. The pub draws custom from the lane's foot traffic, and the lane benefits from the pub's identity as a destination in its own right. Together, they create a micro-environment within the larger context of Hampstead village, a place with its own rhythms, its own regulars, and its own mythology. The ghosts of The Flask are, in a sense, the ghosts of Flask Walk itself: the flask sellers and spa visitors, the highwaymen and poets, the ordinary men and women who have walked this narrow lane for three hundred years, leaving traces of their presence in the fabric of the buildings and the stories told within them.
The Flask in the Twenty-First Century
The Flask today occupies a position that would have been familiar to its eighteenth-century founders: it is a place where locals and visitors meet, where the village's social life is conducted, and where the past is present in every surface and shadow. The pub has navigated the challenges that face all traditional London pubs, including rising rents, changing drinking habits, and the competition of home entertainment, with a resilience that owes much to its unique character and to the loyalty of its community.
The ghost stories continue to accumulate. Each new generation of staff and customers adds its own experiences to the existing corpus, and the pub's reputation as one of London's most haunted buildings shows no sign of diminishing. Whether the ghosts are real, in any sense that would satisfy a scientist, is perhaps the least interesting question that can be asked about them. What matters is that they persist, that they are reported by credible witnesses with no obvious motive for fabrication, and that they contribute to the atmosphere of a place whose atmosphere is its principal asset. The Flask's ghosts are part of its stock in trade, as much a feature of the pub as its ale, its panelling, and its fireplace.
For those who work with historic buildings, The Flask offers lessons that extend beyond its specific history. It demonstrates that a building's value is cumulative, built up over time through use, story, and association. No single restoration or renovation can create the quality that The Flask possesses; it can only be earned through centuries of continuous occupation and the gradual accretion of memory. The challenge for those who care for such buildings is to maintain this quality while addressing the practical demands of contemporary use, to ensure that the fabric is sound and the facilities adequate without erasing the patina that gives the building its character.
The Flask will continue to stand on Flask Walk, dispensing ale and hospitality as it has done since the reign of William III. Its ghosts will continue to walk the stairs and haunt the cellar. Its stories will continue to grow, each one adding another layer to the rich sediment of history that makes this modest building one of the most remarkable pubs in London. And on winter afternoons, when the light comes hesitantly through the leaded windows and falls across the darkened oak, there will still be something in the air of The Flask that resists rational explanation, something that belongs to the building itself and to the centuries of human experience that have soaked into its walls like spilled ale into old wood.
*Published in the Hampstead Renovations Heritage Collection — exploring the architecture, history, and stories of London's most remarkable neighbourhoods.*