
Actually the oldest synagogue in continuous use in the entire UK, the Bevis Marks Synagogue in the City of London was built in 1701.

The synagogue entrance. PICTURE: Edwardx (licensed under CC BY-SA 3.0)
The synagogue has historical ties to the city’s Spanish and Portuguese Jewish community, known as Sephardic Jews, which first started meeting together in a small synagogue in Creechurch Lane in 1657 after it become possible for Jews to openly practice their religion under the rule of Lord Protector Oliver Cromwell.
Increasing numbers in the community soon meant a larger premises was required and a committee was formed which signed a contract with Quaker builder Joseph Avis in February, 1699, to build a larger premises (tradition holds that Avis returned the money he made on the job to the community, saying he would not profit from building a house of God). In June that same year, the community leased a tract of land at Plough Yard, Bevis Marks, on which the new building would be built. Construction commenced soon after.
The property’s design is said to emulate, at least in part, that of the 1675 Portuguese Synagogue of Amsterdam (it’s also thought the design was influenced by the works of Sir Christopher Wren). There’s also a story that the building included an oak beam from one of the Royal Navy’s ships presented by Queen Anne.
The rectangular building, which features three galleries inside, was eventually completed and dedicated in September, 1701.
The roof of the now Grade 1-listed building was replaced following a fire in 1738 and the synagogue only suffered minor damage during the Blitz. It also suffered some collateral damage from the IRA bombing in 1992 and the 1993 Bishopsgate bombing but remains mostly intact.
Sermons at Bevis Marks were in Portuguese until 1833 when they changed to English.
Features inside include an oak Renaissance-style ark containing the Torah scroll which, painted to resemble coloured Italian marble, is located at the centre of the eastern wall. There are also seven hanging brass candelabra which symbolise the seven days of the week. The largest, which hangs in the centre of the synagogue – represents the Sabbath and was donated by the community of the Great Synagogue of Amsterdam. There are also 10 large brass candlesticks representing the Ten Commandments. While the upright oak seats are said to “reflect the Puritanism of 17th century England”, the backless oak benches at the back are the original seats which were brought from the Creechurch Lane premises.
Twice Prime Minister Benjamin Disraeli’s 1804 birth is recorded in the register but after his father had a falling out with the synagogue officials, Disraeli was in 1817 baptised at St Andrew’s Holborn.
The synagogue is temporarily closed to visitors and tour groups. For more information, head to www.sephardi.org.uk/bevis-marks/visit-bevis-marks/.