Updated September 2026. This guide does not replace an architect, engineer, qualified person, licensed contractor or required approvals.
Plan movement and services first
Test circulation, door swings, storage, heat, ventilation, drainage, gas, electrical loads and maintenance access before choosing an island or finishes.
Common traps
- Insufficient clear circulation.
- Poor separation of heat, water and tall storage.
- Under-designed extraction and moisture control.
- Inaccessible plumbing and electrical systems.
- Finishes unsuited to heat, water or slip risk.
Confirm structural, fire, ventilation, plumbing, electrical and planning requirements with qualified professionals. Costs and resale outcomes vary. Explore landed selling or request a review.