ABBEY HOUSE ARCHITECTURE: J.J. JOASS AND THE LIGHTHOUSE ON BAKER STREET

Abbey House at 219–229 Baker Street is an Art Deco commercial building designed by John James Joass (1868–1952) and completed in 1932 as the new headquarters of the Abbey Road Building Society. It is a building with an unusual density of stories attached to it — institutional, architectural, and literary — and a facade that repays close attention, particularly at the central entrance, where a carved Portland stone lighthouse bas-relief presides above the door with quiet authority.

The building is Grade II listed and remains a fixture on one of London's most recognisable streets, its original tower and façade intact despite two phases of demolition and reconstruction of the structure behind it. The lighthouse above the door has outlasted every other iteration of the building around it.

  • Written by Gavin Paisley, director & model-maker at Chisel & Mouse based in East Sussex, England.
  • Last updated: 19th March 2026.
Abbey House Architecture Illustrated page

Photograph from Architecture Illustrated July 1932.

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What is Abbey House?

Abbey House was purpose-built as the London headquarters of the Abbey Road Building Society, which had been founded in 1874 as the Abbey Road and St John's Wood Permanent Benefit Building Society — originating in a Baptist church on Abbey Road, Kilburn. By the early 1930s it had grown to become the second largest building society in the United Kingdom, and it needed premises to match.

The society had in fact first occupied the Baker Street site from 1927, before the current building was completed. The new headquarters opened in 1932: a six-storey, steel-framed building clad in Portland stone, with a central tower, a clock with eight bells cast by Gillett & Johnston, and an elaborate sculptural programme concentrated on the entrance bay. The society remained there until 2002, by which point it had long since merged (in 1944) with the National Building Society to become Abbey National, demutualised (in 1989) as the first major British building society to do so, and ultimately been acquired by Santander.

After the society's departure, the building was substantially redeveloped. The tower and façade were retained under the terms of the Grade II listing; the structure behind was demolished and replaced with a new development of luxury residential apartments and underground parking, completed by 2008. The original façade thus now functions as the public face of an entirely new building — a common fate for listed commercial frontages in central London, and one that makes the survival of the entrance sculpture all the more charged.

Facts panel

Purpose-built headquarters of the Abbey Road Building Society at 219–229 Baker Street, Marylebone, London. Completed 1932. Tower and original façade retained; building behind redeveloped 2006–08.

  • Architect: John James Joass (1868–1952)
  • Client: Abbey Road Building Society (founded 1874)
  • Completed: 1932
  • Location: 219–229 Baker Street, Marylebone, London NW1 6XE
  • Materials: Steel frame; Portland stone cladding; clock tower with eight bells (cast by Gillett & Johnston, 1931)
  • Sculptural programme: Lighthouse bas-relief above central entrance; winged female figure above; word "Security" inscribed beneath the lighthouse; allegorical figures flanking
  • Occupant: Abbey Road Building Society 1932–1944; Abbey National Building Society 1944–2002
  • Key dates: Abbey Road Building Society founded 1874; moved to Baker Street 1927; new building completed 1932; merger with National Building Society to form Abbey National 1944; demutualisation 1989; vacated 2002; redevelopment completed c.2008
  • Listing: Grade II (Historic England)
  • Current use: Residential apartments (Park View Residence), retaining original façade and tower

Architect: John James Joass

John James Joass (1868–1952) was a Scottish architect born in Dingwall, Ross-shire, whose father William Cumming Joass was himself a local architect. He trained with John Burnet & Son in Glasgow from 1885, then under Robert Rowand Anderson, before moving to London in 1893. He joined the practice of John Belcher in 1896, became a partner in 1905, and continued the practice alone after Belcher's death in 1913.

Joass was a prolific and versatile interwar architect. His works include the Ashton Memorial in Lancaster (1906, with Belcher), Whiteleys department store (1911), the Royal Insurance building on Piccadilly (1907–09), the rebuilding of Swan & Edgar on Regent Street (after 1920), and an extension to the Chartered Accountants Hall in the City (1926). He was elected FRIBA in 1912, won the RIBA Pugin Prize and Travelling Studentship in 1892, and the RIBA Owen Jones Prize in 1895. He retired to Poole, Dorset, and died in Wandsworth, London on 10 May 1952.

Abbey House is among his later independent works, and shows the shift that characterised his mature practice: from the Edwardian Baroque grandeur of his partnership years with Belcher towards a more restrained, stripped classicism that absorbed Art Deco influences while retaining a commitment to sculptural enrichment at key moments.

Architectural character and the lighthouse

The Abbey House façade is a composed and formal Portland stone elevation, characteristic of the institutional commercial architecture of the late 1920s and early 1930s. The organisation is symmetrical, with the central bay given prominence through the entrance, a tall arched opening above it, and the clock tower rising beyond. The upper floors carry a restrained grid of windows; the materials are pale and sober. It reads — correctly — as the headquarters of a serious financial institution.

What lifts it above the routine is the central entrance bay, and specifically the lighthouse bas-relief carved in Portland stone above the door. A classical lighthouse rises from swirling waves, flanked by allegorical figures. Beneath the lighthouse, the word "SECURITY" is inscribed — a declaration of purpose as much as an ornament, telling every depositor exactly what the building was for. Above the entrance arch, on the upper storey, a winged female figure appears to unfurl from the façade — an allegory of guidance, or of rescue, depending on how you read her.

The lighthouse itself is a richly chosen symbol for a building society. In the 1930s, as home ownership was being actively promoted and the building society movement was growing rapidly, the lighthouse carried associations of safe navigation, reliable guidance, and the security of a fixed point in uncertain waters. For a mutual institution whose entire purpose was to help ordinary people achieve the security of home ownership, it was apt — and rather beautiful.

The French architectural record notes the word "Security" beneath the lighthouse and suggests the client may have had insurance interests, though the Abbey Road Building Society was a straightforward mutual savings and lending institution. The lighthouse is more plausibly read as pure institutional symbolism: the society as a light guiding its members safely to the shores of home ownership.

Abbey House Architecture Illustrated page

Photograph from Architecture Illustrated July 1932.

The Sherlock Holmes address

Abbey House occupies a particular position in literary geography. When Arthur Conan Doyle wrote his first Sherlock Holmes story, A Study in Scarlet, in 1887, he chose the address 221B Baker Street for his detective's lodgings — deliberately, because Baker Street at the time did not extend to numbers that high. It was an address that could not exist, which suited a fictional detective perfectly.

When Baker Street was renumbered in the 1930s, however, the odd numbers 215 to 229 were assigned to the new Abbey Road Building Society headquarters. 221B Baker Street had, accidentally, come into physical existence — and within the walls of a building society. Almost immediately, the society began receiving correspondence addressed to Sherlock Holmes from around the world, at times as many as 30 letters a month. Rather than ignoring it, the Abbey Road Building Society — and later Abbey National — appointed a full-time secretary to Sherlock Holmes to respond to the mail.

The building society embraced this accidental literary heritage with good humour. In 1999, Abbey National sponsored a bronze statue of Sherlock Holmes placed at the entrance to Baker Street Underground station. A bronze plaque on the front of Abbey House itself once carried a portrait of Holmes and a quotation from Conan Doyle, though it has since been removed and its whereabouts are unknown.

After Abbey National vacated the building in 2002, the Sherlock Holmes correspondence was eventually redirected to the Sherlock Holmes Museum at 237–241 Baker Street — which has its own long-running dispute with Westminster City Council about its claim to bear the number 221B, a matter that occupied local bureaucrats for years. Abbey House is where 221B came into being; the museum is where the post now goes. Both claims are genuine; neither is complete.

Two demolitions, one façade

Abbey House has been substantially rebuilt twice. The original 1932 building survived the Second World War intact — the bells in the clock tower were cast in 1931 and remain in working order. The first major reconstruction came after the society's departure in 2002; the second redevelopment, completed around 2008 by Rolfe Judd architects, retained only the tower and original Portland stone façade, constructing a new residential block behind and on either side. The result — Park View Residence — provides 92 luxury apartments and 40 affordable units, with three levels of underground parking.

The façade thus now performs a different function from the one it was designed for. It is no longer the face of an institution but of a residential development. The lighthouse above the door still reads "Security" — an inscription that means something different when the building behind it is private apartments rather than a mutual savings society, but which has not lost its charge entirely.

Abbey House redeveloped photo

Photograph by Ruth Sharville.

The model-maker's lens

We focused the model on the lighthouse bas-relief above the central entrance — not the building as a whole, but this one concentrated moment of ornament and meaning.

  • Why the lighthouse — it is the building's most inventive and legible feature: a piece of institutional storytelling carved in stone, doing exactly what good architectural sculpture should do — telling you what a building is for without saying a word
  • Detail — the relief has genuine depth and complexity: the tower, the waves, the flanking figures, the inscription beneath. At model scale, the interplay of light and shadow across the carved surface is where the work happens
  • How it reads at small scale — freed from the full elevation, the lighthouse becomes a study in symbolic form: compact, self-contained, and very direct
  • How to display — works best with a raking light from one side, which throws the carved relief into strong shadow and makes the depth of the carving legible. The pale Portland stone finish means it reads equally well against a light or a dark surface

The lighthouse is still there, above a door that now leads to someone's flat. Joass carved it to tell depositors they were safe. It still does.

Frequently asked questions about Abbey House

Who designed Abbey House?

John James Joass (1868–1952), a Scottish architect who practised in London for most of his career, initially in partnership with John Belcher and then independently. He is noted for the Ashton Memorial in Lancaster, the rebuilding of Whiteleys and Swan & Edgar, and the Royal Insurance building on Piccadilly, among many other works.

When was it built?

The building was completed in 1932. The Abbey Road Building Society had occupied an earlier building on the same site from 1927.

What does the lighthouse represent?

It is a symbol of security and guidance — apt for a building society whose purpose was to help members navigate towards the security of home ownership. The word "Security" is inscribed in stone directly beneath the lighthouse. A winged female figure appears above the entrance on the storey above, likely representing guidance or protection.

What is the connection to Sherlock Holmes?

When Baker Street was renumbered in the 1930s, the Abbey Road Building Society's new headquarters at 219–229 Baker Street found itself encompassing the number 221B — the fictional address Arthur Conan Doyle had chosen for Sherlock Holmes in 1887, precisely because it did not then exist. The society appointed a full-time secretary to answer the resulting flood of correspondence addressed to Holmes. The connection persisted until the society vacated the building in 2002.

Is the original building still standing?

Partially. The tower and Portland stone façade are original and Grade II listed. The building behind the façade was demolished and rebuilt as residential apartments (Park View Residence) around 2006–08. The clock tower retains its eight original bells, which were restored and remain in working order.

What is the listing status?

Grade II listed (Historic England).

Sources and further reading