Key takeaways
What to know before you begin.
- Check real fixture dimensions before finalising the layout.
- Coordinate waterproofing, falls, niches and floor wastes as one system.
- Plan ventilation, lighting and power before walls and ceilings close.
- Confirm storage and cleaning access—not only the visual style.
Test the layout with real dimensions
A plan can look generous until door swings, shower screens, vanity drawers and towel locations are added. Use the dimensions of shortlisted fixtures and allow comfortable circulation around them.
For smaller bathrooms, consider whether the door position, shower form, vanity depth or storage arrangement can improve daily use without unnecessary service relocation.
Coordinate water management early
Substrate preparation, falls, floor wastes, shower details, niches and waterproofing need to work as one system. Their relationship affects tile set-out, thresholds and the finished floor level.
Ask how the waterproofing scope will be documented and what records will be provided at handover.
Plan ventilation and moisture control
A bathroom fan is most effective when its capacity, location, duct route and air path suit the room. Windows alone may not provide consistent moisture control during Melbourne winters.
Ventilation decisions should be coordinated with lighting, ceiling framing and external discharge requirements before construction closes the space.
Select fixtures as a coordinated set
Tapware, basins, toilets, baths and showers have different plumbing and installation requirements. Confirm compatibility, lead times, finishes and who supplies each item.
- Check in-wall and concealed components
- Confirm tapware projection and basin reach
- Review shower screen clearances
- Allow access for cleaning and future maintenance
Design lighting and storage for real routines
General light, mirror light and softer evening light serve different purposes. Power outlets, heated towel rails and under-cabinet lighting also need early coordination.
Vanity drawers, mirrored cabinets, shower niches and linen storage should be planned around the items your household actually uses, not treated as decorative afterthoughts.



