Brucefield House comprises a three-storey central block, with a three-storey northern pavilion, and a two-storey pavilion to the south. Different interpretations of the development of the house have been published. Adam Swan states that the 18th-century house was a rebuilding of the 15th-century hunting lodge of Hartshaw, belonging to the Stewarts of Rosyth, and that the stone spiral stair in the north pavilion is a surviving part of this.[2] According to this interpretation, Alexander Bruce remodelled the existing building in a contemporary style, and added the south pavilion.[2] However, the Stirling and Central Scotland volume of the Buildings of Scotland series suggests that the central block was newly built in 1724, and attributes the south pavilion to c.1760, and the north pavilion to the early 19th century.[4]
The original entrance was on the east front, where a window now takes the place of the main door. A 19th-century porch now forms the entrance from the west.[4] Above the porch is a panel carved with the arms of Alexander Bruce and Mary Balfour. This panel was moved to the Bruce's other property, Kennet House (now demolished) in 1760, but was returned during the 1930s restorations.[4] The interiors were mostly remodelled at the same time, though several 18th-century chimney pieces survive.[4]
An 18th-century walled garden is located to the south of the house. To the north is Brucefield Mains, the former stables, which dates from the early 18th century and was restored as a dwelling in 2009. The main feature of the stables is the central tower containing a doocot (pigeon house).[5]
