The Round House The Round House is the oldest remaining building in Western Australia. It was built as a gaol and was the first permanent building in the colony. It was designed by HW Reveley, the colony's first civil engineer, and built in 1830 - 1831. The Round House had eight cells and a gaolers residence which all opened up into a central courtyard. Bay whaling was carried out from Bathers beach below the Round House. As part of the whaling operations a tunnel was constructed under the Round House to provide whalers with access to the town from the jetty and bathers beach. When the first convicts arrived in 1850 the Round House was inadequate to house them so the convicts built a new goal which was completed in the 1850's and continued to be used as Fremantle prison through until 1991. The Round House was not used as a prison when, in 1886, convict establishment became the responsibility of the colonial government. Instead, the Round House was used as a police lock-up through until 1900. It then became the living quarters for the chief constable, his wife, and their ten children. The Fremantle City Council took over responsibility for the Round House from 1982 when the headland was vested in the city. The building was opened to the public soon afterwards and can now be viewed seven days a week. A team of volunteer guides who are on duty at the Round House during opening hours.