[1] The preparatory school at St Columba's was formerly located at Shieldhall on Bridge of Weir Road.

Boarders were once accepted and accommodated in Shallott, the current junior school building.

The junior school was then located at Shieldhall on the Bridge of Weir Road.

The Knockbuckle Road site, which now houses the Junior School, was once occupied by boarders.

[5] The senior school is on Duchal Road to the north of Kilmacolm's village centre.