What is a lot boundary and why does it matter?

The lot boundary defines where your private ownership ends and common property begins. Understanding it is essential for resolving maintenance and renovation disputes. In most standard module schemes, the boundary is: - The inner surface of boundary walls (inner face of external walls) - The upper surface of floors - The under surface of ceilings Everything inside those surfaces — internal linings, plumbing within the lot, fixtures and fittings — is part of your lot and your responsibility to maintain. The exact boundary is defined by the registered scheme plan lodged with the Titles Registry. In some schemes (particularly older ones) the boundary definition may differ. Before undertaking any renovation or reporting a maintenance issue, check the scheme plan to confirm whether the affected area is inside your lot or on common property. This article is general information only and not legal advice.