Butterly House, also known as Monger's Cottage, is located at 1A-D Harper Road, Toodyay, Western Australia.

His son, Charles Samuel Monger, resided in the dwelling[1] and operated the family store located opposite the house and adjacent to the Bolgart Bridge (crossing the Avon River).

[1][2] In 1910 the residence was acquired by Mr Angus and Mrs Emma Butterly (née Monger), who undertook extensive remodelling of the dwelling.

From 1954–80 the cottage was owned and occupied by Miss Kathleen Gladys Butterly, who sold the house and land to the Shire of Toodyay in 1981.

In 1999 the building was officially re-opened and is used by the Association for recreation and as a living museum with collections of photographs and memorabilia.