It is the largest reservoir constructed on the Eastern Railway line and supplied water to steam trains for almost 50 years.

In 2005, Lake Leschenaultia gained a heritage listing based on the railway history, recreational significance and other factors.

[citation needed] In 2006, the 40m timber jetty (constructed in 1971) was removed due to safety issues and has since been replaced with a pontoon.

[1] The recreational area adjoining the lake is managed by the Shire of Mundaring, which, as of January 2013[update], does not charge an entry fee.

The lake is advertised as offering a number of attractions, including picnics and camping; physical activities such as bushwalking, canoeing and swimming; and views of native flora and fauna, such as birdwatching.