Now the UK’s largest inland fish market (and located in Poplar, east London), the history of Billingsgate Market goes back centuries.

Known originally by various spellings including Blynesgate and Byllynsgate, Billingsgate may have been named for watergate on the north bank of the Thames near where the market was originally established (an alternate theory is that it was named for a man named Biling or an mythological British king, Belin).

The right to collect tolls and customs at Billingsgate, along with Cheap and Smithfield, was granted by King Henry IV in 1400.

Billingsgate only became particularly associated with fish in the 1500s and in 1699, an Act of Parliament was passed making it “a free and open market for all sorts of fish whatsoever” (this was with the exception of eels, restricted to being sold by Dutchmen from boats in the river – a reward for the help they provided after the Great Fire of 1666).

While for much of the market’s history, fish was sold for stalls and sheds around the ‘hythe’ or dock at the site known as Billingsgate, in 1850 the first purpose-built market building was constructed in Lower Thames Street.

Deemed inadequate for the task at hand, however, it was demolished after slightly more than 20 years of service. A new building, designed by then City Architect Sir Horace Jones and constructed by John Mowlem, was opened in on the same site in 1876. In the late 19th century, it is said to have been the largest fish market in the world. The heritage listed former fish market building in Lower Thames Street (pictured above) is now used as a venue for corporate events, catwalk shows, post premiere parties and concerts (see the website for more www.oldbillingsgate.co.uk).

In 1982, the market was relocated to a 13 acre site on the Isle of Dogs, just to the north-east of Canary Wharf. The building contains a trading floor with some 98 stands and 30 shops as well as an 800 tonne freezer store. An average of 25,000 tonnes of fish and fish products are sold through its merchants every year and the market has an annual turnover of around £200 million.

The role of the fish porter – who traditionally have been the only people licensed to move fish around the market – was opened up to anyone following a fiercely fought battle between the porters, traders and the City of London Corporation earlier this year.

The market is open to the general public and tours can be arranged – head to the website for details.

WHERE: Billingsgate Market, Trafalgar Way, Poplar (nearest Tube Station is Canary Wharf); WHEN: 4am to 9.30am Tuesday to Saturday (children under 12 are not permitted on the market floor and non-slip shoes are advisable); COST: Free; WEBSITE: www.cityoflondon.gov.uk/business/wholesale-food-markets/billingsgate/Pages/default.aspx.