Challoner Cottage, Former children's home dormitory in Renwick, New South Wales, Australia

Challoner Cottage is a former children's home dormitory at 82 Bong Bong Road, Renwick, also known as Cottage No. 12 or the Old Dormitory Building. It is a surviving feature of the Mittagong Training School for Boys and Mittagong Farm Home, listed on the New South Wales State Heritage Register on 28 March 2014.

Challoner Cottage, also called Cottage No. 12 or the Old Dormitory Building, is a surviving structure of the Mittagong Training School for Boys and the later Renwick Farm Home. The institution began in 1906 as a farm home for boys aged 8 to 17 and was proclaimed an Industrial School and Probationary Training Home under the Neglected Children and Juvenile Offenders Act 1905. It was added to the New South Wales State Heritage Register on 28 March 2014.

The cottage is Cottage No. 12 of the Mittagong Farm Home, where boys aged 8 to 17 were sent under the Neglected Children and Juvenile Offenders Act 1905. Its name recalls Dr Arthur Renwick, chair of the State Children's Relief Board, who advocated cottage homes for children in care.

The site is surrounded by tall pines and grounds that create a quiet, rural setting. The location is easily accessible from the road, with the original gravel driveway still visible and leading to the cottage.

Challoner Cottage is also known as Cottage No. 12 or the Old Dormitory Building, one of the numbered cottages of the Mittagong Farm Home. It was added to the New South Wales State Heritage Register on 28 March 2014, the same year the site marked a century of state care for children.