Old Dairy Farm Senior Staff Quarters was built in 1887 and is the oldest of the remaining Dairy Farm buildings in Hong Kong. It used to be the dwelling house of the farm manager. It is a 2-storey building situated in the north-western corner of the cowshed compound.
The Dairy Farm Co., Ltd. was founded in 1886 by Sir Patrick Manson, a Scottish surgeon. Pok Fu Lam was selected as the site for dairy farmland due to its reliable water supply for livestock husbandry and its geographical location to benefit from every breeze in summer time. The year 1941 saw the outbreak of war that decimated the dairy herd and paralyzed the Dairy Farm Co., Ltd. along with the rest of Hong Kong. The Dairy Farm premises were looted. After the war, the Pok Fu Lam dairy herd was restocked once more. In recent decades, vast new housing estates such as Baguio Villas, Wah Fu, and Chi Fu Fa Yuen were built on the original farmlands of some 300 acres. As a result, most of the Dairy Farm premises were demolished. Those still in existence include a Main Office Building, a Senior Staff Quarters, and a Cowshed. They serve as reminders of the success story of a Hong Kong enterprise.
The Senior Staff Quarters is a 2-storey building. The lower or ground floor storey, which corresponds to a basement, has thick granite block walls pierced at regular intervals by circular bull's eye windows for ventilation. These granite walls act as a plinth to support the principal storey at first floor level which has simple classical architectural features.
Each elevation is different but the main features are a bay window on the north-east side. The main features of the interior are period fireplaces in the main rooms, panelled doors, and heavily moulded architraves to windows and door frames. There are two outbuildings comprising a single storey building probably used as servants' quarters and a garage block in simple classical architectural style. Both outbuildings have double-roll Chinese tile pitched roofs.