Government House is the Official Residence of the Lieutenant Governor and family. It also provides accommodation for official guests to the Isle of Man and is used extensively for formal functions such as lunches, dinners and receptions. As Office of the Lieutenant Governor is based at Government House, the House is the normal workplace of the Lieutenant Governor and his staff.

The House was originally Bemahague Farm and owned by the Heywood family. The main part was built between 1820 and 1830 with an extension to its present size in 1904 when the Manx Government bought the House. The maintenance of the House is the responsibility of the Department of Infrastructure who oversee the property through their Estates team. The House has four main bedroom suites, a fifth bedroom, two large reception rooms, and a formal dining room; together with service rooms and a number of offices.

The grounds cover about 12 hectares, some of which is lawn or garden, with much of the rest being woodland or grazing land. There is also a well-established rose garden, orchard, vegetable plots and greenhouses providing flowers, produce and garden plants for the House and Gardens. Many visitors are welcomed to Government House each year, including: foreign Ambassadors, visiting politicians, VIPs and business leaders; and many more people from all walks of life on the Isle of Man. Functions hosted by the Lieutenant Governor and spouse range from formal ceremonies and receptions to teas, lunches and dinners. Organised visits by school groups and youth organisations from across the Island are also encouraged.

The support to the Lieutenant Governor in his official functions is provided by a small, dedicated team of administrative and house staff. They are all Isle of Man public servants and members of the Crown and External Relations Directorate within the Cabinet Office. The Chief of Staff/Private Secretary is responsible for the leadership of all operational aspects of the household and provides direct support to the Lieutenant Governor with their Constitutional duties. The Chief of Staff, House Manager and Social/Engagements Secretary handle all administrative matters, such as maintaining the Lieutenant Governor's diary, assisting with correspondence, speeches, arranging the daily programme and handling the protocol associated with all official events. The House Manager, Chef, Butler/Chauffeur and Assistant Housekeepers look after the House, Kitchen, the Lieutenant Governor's travel around the Island and ensure the efficient running of functions (with the support of a trusted team of casual staff, who supplement the team when required). There are also a number of Honorary Aide-de-Camps (Honorary ADCs) who assist the Lieutenant Governor and their spouse when they are hosting official functions at Government House.