Home Cost Australia

Home Renovation Cost

By Home Cost Australia Editorial TeamUpdated 20 September 2026Data checked: 20 September 2026

Larger whole-home renovations vary enormously with scope. A cited national guide puts bigger projects roughly in the A$100,000–A$300,000+ range — context only, not a quote. The reliable path is a line-item budget built from your own scope.

Context range

Large/whole-home renovation (context range)

A$100,000–A$300,000

Range

Source-backed context range for larger whole-home renovations from a national guide; can exceed the upper figure. Context, not a quote.

Includes
Multiple rooms/structural scope (varies widely)
Excludes / unclear
Upper bound (open-ended in source)
Source: hipages· 2026Data checked: 20 September 2026How we use sources

Plan it line by line

Whole-home projects are the sum of many decisions. Build a budget from individual rooms and works using the renovation budget calculator, then add a contingency for the unknowns that big projects always surface.

Why quotes vary so much

  • Structural changes and extensions vs cosmetic updates.
  • Services (plumbing, electrical, gas) relocation.
  • Approvals, engineering and access.
  • Hidden conditions: asbestos, rot, non-compliant wiring.

Before you commit

  • Lock the scope and get like-for-like quotes.
  • Model a contingency scenario (e.g. 10%, 15% or 20%) for unknowns.
  • Confirm who manages approvals and engineering.
  • Agree how variations are priced in writing.

Sources

  1. The rising cost of home renovations
    hipages · 2026 · Last checked 20 September 2026