01What changes in Perth
WA Building and Energy’s wet-area compliance bulletin tells builders, installers, designers and surveyors to document how the bathroom will meet applicable building standards, including substrate preparation, drainage flanges, membrane protection, falls and the complete waterproofing system. Its newer inspection reporting also treats evidence of product suitability and the interaction of membrane, wastes and waterstops as part of compliance. That makes “premium membrane” too narrow a campaign claim.
WA says owners must obtain a building permit where required from the relevant local government, and permit exemptions depend on whether renovation work affects structure, building size, height or supporting elements. The campaign should collect Joondalup, Wanneroo, Armadale or Rockingham because the permit authority and travel route differ, rather than quote one City of Perth rule across the metro area.
Strata projects need boundary, by-law and common-property checks, while major plumbing must follow WA notice and licensed-contractor processes. The provider should itemise demolition, waterproofing, fixtures, plumbing, electrical, glazing and asbestos allowances instead of implying a single trade performs all work.
