The building has been extended several times during its history.

The present building opened in 1829 and has been extended since then.

The building has been extended four times in its history, the most recent being between 1993 and 1995.

The building was extended several times in the 20th century.

The building was extended several times during the 19th century.

In 1856 the original building was extended to the north.

The building was further extended in 1874-1875, 1886-1887 and 1931-1932.

The building was later extended in 1985, and now has a capacity of 250 people.

Things looked up in the 15th century, and the buildings were extended.

The present building was completed in 1968 and has been extended several times since.