Located in Coleman Street, they are housed in a double-storey colonial building that once served as a boys’ school and bookstore. The building was formerly part of the Anglo-Chinese School. The building was formerly part of Anglo-Chinese School. It was designed by Tomlinson and Lermit Architects and commissioned by the Trustees of the Anglo-Chinese School in 1906 as an additional school building to the Oldham Hall that was built in 1897. The original plans of this building were approved on 22 June 1906. This makes them a very old and historic building.
The building housed the Methodist Book Room in the 1970s and 1980s, before being converted to become the Singapore Philatelic Museum in 1995. Today, it is home to Singapore’s first museum dedicated to children, Children’s Museum Singapore.