The Strata Schemes (Freehold Development) Act 1973 commenced on 1 July 1974 and replaced the previous legislation Conveyancing (Strata Titles) Act 1961. Transitional and savings provisions where contained in the new legislation which had affect upon previously registered plans. One of the most significant changes involved the relocation of some boundaries from the centreline of a structure (i.e. wall, floor or ceiling) to the face or faces of the structure.
The original legislation provided that the boundary between separate lots or between lots and common property was the centreline of the dividing structures being walls, floors or ceilings. Upon the commencement of the new legislation on 1 July 1974 these boundaries, for previously registered plans, moved to the inner face of the walls, the upper surface of the floors and the lower surface of the ceilings. The structure then became common property. Any walls or other structure which are between separate parts of the same lot remain as part of the lot and are not common property. This occurs even if the structure is shown on the plan. The most common example where these provisions create an issue is the wall within a lot between the living area and a balcony; in this case the wall and any door or window will remain as part of the lot and not become common property.
In some circumstances the plan may show a note indicating that the boundary is the centre (or face) of a structure. In this case the boundary remains in that position and is not relocated as described above.
With regard to plans registered prior to 1 July 1974:
Careful consideration should be given to any actions involving plans prepared prior to 1 July 1974.