The museum is partly located in a 15th-century half-timbered house, listed Grade II on the National Heritage List for England, with a herb garden to the rear, and covers local history.

In 2017 the Museum re-opened following a major development that included expansion into the neighbouring property at 51 High Street, a former post office.

[4] In March 2024 the Museum re-opened with a new temporary exhibition gallery, the Marie-Louise von Motesiczky Gallery, named for the emigree Austrian artist who lived in Amersham during the Second World War, and whose Charitable Trust funded the redevelopment.

[5] As of May 2023[update], the museum is open from 12noon to 4.30pm from Wednesdays to Sundays plus Bank Holiday Mondays.

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