As the name implies, Chalvey lies low on the plain of the River Thames, and there may have been enough of a rise for an island to stand above the slough from which the later town takes its name.

[2]: 37 In 1849, the Slough to Windsor railway was built, passing through the middle of Chalvey.

A halt was opened by the Great Western Railway in 1929 but closed the following year.

[2]: 40  A long-standing local joke suggests that Chalvey's main industry is in the Treacle Mines.

The current Lord of Chalvey, Christopher Johnson, lives in the United States.