221B Baker Street is the London address of the fictional detective
Sherlock Holmes
Sherlock Holmes () is a Detective fiction, fictional detective created by British author Arthur Conan Doyle. Referring to himself as a "Private investigator, consulting detective" in his stories, Holmes is known for his proficiency with obser ...
, created by author Sir
Arthur Conan Doyle
Sir Arthur Ignatius Conan Doyle (22 May 1859 – 7 July 1930) was a British writer and physician. He created the character Sherlock Holmes in 1887 for ''A Study in Scarlet'', the first of four novels and fifty-six short stories about Hol ...
. In the United Kingdom, postal addresses with a number followed by a letter may indicate a separate address within a larger, often residential building.
Baker Street
Baker Street is a street in the Marylebone district of the City of Westminster in London. It is named after builder James Baker. The area was originally high class residential, but now is mainly occupied by commercial premises.
The street is ...
in the late 19th century was a high-class residential district, and Holmes's apartment would probably have been part of a
Georgian terrace.
The residence was introduced in the novel ''
A Study in Scarlet
''A Study in Scarlet'' is an 1887 Detective fiction, detective novel by British writer Arthur Conan Doyle. The story marks the first appearance of Sherlock Holmes and Dr. Watson, who would go on to become one of the most well-known detective ...
'' (1887). At the time the Holmes stories were published, addresses in Baker Street did not go as high as 221. Baker Street was later extended, and in 1932 the
Abbey National Building Society moved into premises at 219–229 Baker Street. For many years, Abbey National employed a full-time secretary to answer mail addressed to Sherlock Holmes. In 1990, a
blue plaque
A blue plaque is a permanent sign installed in a public place in the United Kingdom, and certain other countries and territories, to commemorate a link between that location and a famous person, event, or former building on the site, serving a ...
signifying 221B Baker Street was installed at the
Sherlock Holmes Museum, situated elsewhere on the same block, and there followed a 15-year dispute between Abbey National and the Holmes Museum for the right to receive mail addressed to 221B Baker Street.
Since the closure of Abbey House in 2005, ownership of the address by the Holmes Museum has not been challenged, despite its location between 237 and 241 Baker Street. Its postal code is NW1 6XE.
Doyle's intentions
When the Sherlock Holmes stories were first published, street numbers in Baker Street did not go as high as 221.
The section north of
Marylebone Road
Marylebone Road ( ) is an important thoroughfare in central London, within the City of Westminster. It runs east–west from the Euston Road at Regent's Park to the A40 Westway at Paddington. The road which runs in three lanes in both directi ...
near
Regent's Park
Regent's Park (officially The Regent's Park) is one of the Royal Parks of London. It occupies in north-west Inner London, administratively split between the City of Westminster and the London Borough of Camden, Borough of Camden (and historical ...
– now including 221 Baker Street – was known in Doyle's lifetime as Upper Baker Street. In his first manuscript, Doyle put Holmes's house in Upper Baker Street. However, a British crime novelist named Nigel Morland claimed that, late in Doyle's life, he identified the junction of Baker Street and
George Street, about 500 metres south of the Marylebone Road, as the location of 221B.
Sherlockian experts have also held to alternative theories as to where the original 221B was located and have maintained that it was further down Baker Street.
While at medical school in Edinburgh from 1876 to 1880, Doyle resided at 23 George Square near the university. The residence next door is 23-B.
Real 221B Baker Street addresses
Abbey National

When street numbers were reallocated in the 1930s, the block of odd numbers from 215 to 229 was assigned to an
Art Deco
Art Deco, short for the French (), is a style of visual arts, architecture, and product design that first Art Deco in Paris, appeared in Paris in the 1910s just before World War I and flourished in the United States and Europe during the 1920 ...
building known as Abbey House, constructed in 1932 for the Abbey Road Building Society, which the society and its successor (which subsequently became Abbey National plc) occupied until 2002.
Almost immediately, the building society started receiving as many as 30 letters a month to Sherlock Holmes, including cards on 6 January, the date fans believe is his birthdate. It appointed a permanent "secretary to Sherlock Holmes" to answer them. A bronze plaque on the front of Abbey House carried a picture of Holmes and a quotation, but was removed from the building several years ago; its present whereabouts are unknown. In 1999, Abbey National sponsored
a bronze statue of Sherlock Holmes at the entrance to
Baker Street tube station.
Sherlock Holmes Museum
The Sherlock Holmes Museum is situated within an 1815 townhouse very similar to the 221B described in the stories and is located between 237 and 241 Baker Street. It displays exhibits in period rooms, wax figures and Holmes memorabilia, with the famous study overlooking Baker Street the highlight of the museum. The description of the house can be found throughout the stories, including the 17 steps leading from the ground-floor hallway to the first-floor study.
[ .]
According to the published stories, "221B Baker Street" was a suite of rooms on the first floor of a lodging house above a flight of 17 steps.
The main study overlooked Baker Street, and Holmes's bedroom was adjacent to this room at the rear of the house, with
Dr. Watson's bedroom being on the floor above, overlooking a rear yard that had a
plane tree in it.
Address controversy
The street number 221B was assigned to the Sherlock Holmes Museum on 27 March 1990 (replacing the logical address 239 Baker Street) when the Leader of Westminster City Council,
Shirley Porter, unveiled a blue plaque signifying the address of 221B Baker Street. She was invited to renumber the museum's building to coincide with its official opening (and because the number 221B had not been included in the original planning consent for the museum granted in October 1989).
A long-running dispute over the number arose between the Sherlock Holmes Museum, the building society Abbey National (which had previously answered the mail addressed to Sherlock Holmes) and subsequently the local Westminster City Council. The main objection to the museum's role in answering the letters was that the number 221B bestowed on the museum by the council was out of sequence with the other numbers in the street: an issue that has since vexed local bureaucrats, who have striven for years to keep street numbers in sequence. In 2005, Abbey National vacated their headquarters in Baker Street, which left the museum to battle with Westminster City Council to end the dispute over the number, which had created negative publicity. Eventually the museum was granted special permission by the City of Westminster to bear the address of 221B Baker Street.
In 2018,
''Quartz'' revealed that, according to court documents and the
Panama Papers
The Panama Papers () are 11.5 million leaked documents (or 2.6 terabytes of data) published beginning April 3, 2016. The papers detail financial and attorney–client information for more than 214,488 offshore entities. These document ...
, the property was owned at least partially by relatives of
Nursultan Nazarbayev
Nursultan Abishuly Nazarbayev (born 6 July 1940) is a Kazakhstani politician who served as the first president of Kazakhstan from 1991 to 2019. He also held the special title of Elbasy from 2010 to 2022 and chairman of the Security Council of ...
, then Kazakhstani president.
In 2020, ''
The Times
''The Times'' is a British Newspaper#Daily, daily Newspaper#National, national newspaper based in London. It began in 1785 under the title ''The Daily Universal Register'', adopting its modern name on 1 January 1788. ''The Times'' and its si ...
'' confirmed that in addition to various other properties between 215 and 237 Baker Street totalling around £140 million, the current property is jointly owned by the daughter of the former Kazakhstani president,
Dariga Nazarbayeva and her son Nurali Aliyev. Ownership was transferred from Nazarbayeva's ex-husband
Rakhat Aliyev after his death in 2015.
In other media

The fictional address has been portrayed in the following pastiches of
Sherlock Holmes
Sherlock Holmes () is a Detective fiction, fictional detective created by British author Arthur Conan Doyle. Referring to himself as a "Private investigator, consulting detective" in his stories, Holmes is known for his proficiency with obser ...
:
*In the animated film ''
The Great Mouse Detective'' (1986), based on the
Basil of Baker Street book series, Basil resides in 221½ Baker Street, a mouse-hole beneath 221B Baker Street.
*Private detective Louie Knight moves into an office at 22/1B ''Stryd-y-Popty'' (which translates as Baker Street in Welsh) in
Malcolm Pryce
Malcolm Pryce (born 1960) is a British author, mostly known for his Hardboiled, ''noir'' detective novels.
Biography
Born in Shrewsbury, England, Pryce moved at the age of nine to Aberystwyth, where he later attended Penglais Comprehensive Schoo ...
's Welsh Noir parody ''The Unbearable Lightness of Being in Aberystwyth.''
*The 1987
CBS movie ''
The Return of Sherlock Holmes'' (not to be confused with the 1986 British television series of the same name) features Holmes, cryogenically frozen in 1899 and awakened in modern times, trying to adapt with the aid of Watson's granddaughter, Jane. He seeks out his old residence and finds the spot occupied by a
McDonald's
McDonald's Corporation, doing business as McDonald's, is an American Multinational corporation, multinational fast food chain store, chain. As of 2024, it is the second largest by number of locations in the world, behind only the Chinese ch ...
franchise.
*
Dr. Gregory House, the protagonist of ''
House, M.D.'', lives at 221 Baker Street, Apartment B, Princeton, New Jersey.
*
Danger Mouse, in the cartoon show of the same name, lives in a
pillar box near 221b Baker Street. However, Danger Mouse is a loose parody of
Danger Man
''Danger Man'' (retitled ''Secret Agent'' in the United States for the revived series, and ''Destination Danger'' and ''John Drake'' in other overseas markets) is a British television series that was broadcast between 1960 and 1962, and again ...
and
James Bond
The ''James Bond'' franchise focuses on James Bond (literary character), the titular character, a fictional Secret Intelligence Service, British Secret Service agent created in 1953 by writer Ian Fleming, who featured him in twelve novels ...
, rather than Sherlock Holmes. The
pillar box is a stone's throw away from 221B Baker Street and
Dr. Watson throws stones at them in apparent jealousy that he only works for the world's greatest detective, not the world's greatest secret agent in the episod
"Where There's a Well, There's a Way"
*In the ''
Phryne Fisher'' series by
Kerry Greenwood
Kerry Isabelle Greenwood (17 June 1954 – 26 March 2025) was an Australian author and lawyer. She wrote many plays and books, most notably a string of historical detective novels centred on the character of Phryne Fisher, which was adapted a ...
, the detective Hon. Phryne Fisher resides at 221 The Esplanade, St Kilda (Melbourne, Australia), which she renumbers to 221B in homage to Holmes.
*In ''
Star Trek: The Next Generation'',
Data
Data ( , ) are a collection of discrete or continuous values that convey information, describing the quantity, quality, fact, statistics, other basic units of meaning, or simply sequences of symbols that may be further interpreted for ...
tells another crew member that
Geordi La Forge can be found at 221B Baker St, episode 29 "
Elementary, Dear Data" (1988), and 221B Baker St. is again referenced in episode 137
"Ship in a Bottle" (1993).
*In the 2013 Season 2, Episode 1 of ''
Elementary'', Sherlock Holmes and Joan Watson visit London and stay in a second floor residence numbered 221B. Sherlock indicates he had happily resided there before his move to New York City.
* In the 2015 film ''
Mr. Holmes'', a long-retired Holmes (
Ian McKellen) remarks that the Baker Street address is one of several fictitious details created by Watson, who wrote the cases up as sensationalist stories for publication. In a flashback, as curious onlookers gather outside 221B, Holmes watches from a window of his actual residence nearby and congratulates a client for finding the right address.
*The
BBC
The British Broadcasting Corporation (BBC) is a British public service broadcaster headquartered at Broadcasting House in London, England. Originally established in 1922 as the British Broadcasting Company, it evolved into its current sta ...
Television series ''
Sherlock'' has used 187
North Gower Street to represent 221B Baker Street for shooting the exterior scenes of Sherlock Holmes's flat. The location is near
Euston railway station
Euston railway station ( ; or London Euston) is a major London station group, central London railway terminus and Euston tube station, connected London Underground station managed by Network Rail in the London Borough of Camden. It is the sout ...
, and roughly a mile away from the real Baker Street.
* In the 2012–2015 Australian television series ''
Miss Fisher's Murder Mysteries'', the title character of The Honourable
Phryne Fisher (
Essie Davis) lives at 221B Baker Street in Melbourne, Victoria.
* In the
Lord Peter Wimsey
Lord Peter Death Bredon Wimsey (later 17th Duke of Denver) is the fictional protagonist in a series of detective novels and short stories by Dorothy L. Sayers (and their continuation by Jill Paton Walsh). A amateur, dilettante who solves myst ...
stories by Dorothy L Sayers, the title character lives at 110A Piccadilly.
* In the video game
Identity V, 221B Baker Street appears as a purchasable room as part of a collaboration with the Conan Doyle Estate.
See also
* Sir
Arthur Conan Doyle
Sir Arthur Ignatius Conan Doyle (22 May 1859 – 7 July 1930) was a British writer and physician. He created the character Sherlock Holmes in 1887 for ''A Study in Scarlet'', the first of four novels and fifty-six short stories about Hol ...
*
Sherlock Holmes
Sherlock Holmes () is a Detective fiction, fictional detective created by British author Arthur Conan Doyle. Referring to himself as a "Private investigator, consulting detective" in his stories, Holmes is known for his proficiency with obser ...
*
The Sherlock Holmes, a Victorian era themed public house in Northumberland Street, London, with another recreation of the 221B Baker Street interior
References
External links
The United Kingdom websiteThe Sherlock Holmes Museum''The Baker Street Journal''an Irregular quarterly of Sherlockiana
*
221b Blue Plaque221b Baker Street, United Kingdom
{{DEFAULTSORT:221b Baker Street
Fictional elements introduced in 1887
Streets in the City of Westminster
Buildings and structures in Marylebone
Sherlock Holmes
Fictional houses
Tourist attractions in the City of Westminster
Fictional buildings and structures originating in literature
Baker Street
Fictional locations in the United Kingdom