It appears that there may have been a previous dwelling also named Glen Alpine on the same site, possibly as early as 1882–83 when Richard Cobb, a Toowoomba builder and contractor acquired the land.

Between 1887 and 1910 there were various references in the Post Office Directories and Toowoomba newspapers to Brown and his family at Glen Alpine, Main Range.

Low level windows in the brick base, to either side of the porch, light a service corridor behind.

[1] The south elevation has an enclosed gabled room to the upper floor with an arched timber valance and casement windows.

This sits on the brick base, the rear retaining wall of which continues south forming a three car garage with a fernery between.

[1] Internally, the timber floors are mostly carpeted and the tongue and groove walls and boarded ceilings are painted.

[1] The grounds include a fenced garden to the west entry with a low brick pier and wrought iron fence; the remains of a carriage drive entering from the southwest and sweeping around the north and east of the building to the garages at the south; a fish pond with brick paving to the east; mature trees along the south, west and north boundaries and sections of hedges along the east.

The house and grounds of Glen Alpine, erected c. 1918, are important in demonstrating the pattern of Queensland's history, in particular the development of the Toowoomba Range as a prestigious residential area.

[1] The place has a special association with the life or work of a particular person, group or organisation of importance in Queensland's history.

It has special association with the life of Chief Justice Neal Macrossan as his Toowoomba holiday house.