Unapproved or poorly executed alterationsExtensions, renovations, converted spaces and structural modifications that may lack appropriate approvals, engineering or compliant construction.Potential rectification$20,000–$100,000+
Structural defectsRemoved load-bearing walls, inadequate beams or columns, major cracking, movement or poorly executed structural alterations.Potential rectification>$50,000
Foundation & ground movementSettlement, subsidence, reactive soils, footing failures and significant differential movement.Potential rectification>$50,000
Sloping sites & retaining wallsInadequate retaining structures, unstable slopes, poor drainage or ground movement. In severe cases, rectification may be uneconomical and require demolition and reconstruction.
Water ingress & waterproofingRoof leaks, failed balconies, bathroom waterproofing, rising damp, moisture damage and persistent water penetration.Potential rectification$10,000–$50,000+
Drainage & stormwaterPoor site drainage, water ponding, inadequate falls, damaged stormwater pipes or water being directed toward the building.Potential rectification$10,000–$30,000+
Termite & timber damageTermite activity or significant deterioration of structural timber requiring substantial repair or replacement.Potential rectification$10,000–$50,000+
Trees & root damageTrees too close to foundations, retaining walls or underground services, potentially causing structural movement or damage to stormwater infrastructure.Potential rectification$10,000–$50,000+