This guide is general, educational information to help you understand typical costs and choices. Prices are approximate, based on examples seen in south-east Queensland in 2024–2026, and will vary with location, size, materials, supplier and time. It is not financial, legal, building or professional advice, and not a quote. Always get written quotes from licensed trades and check your own contracts before making decisions.
Variation fee per change (one builder)
Typical total on a project home
Each
Example electrical upgrade prices
| Item | Price |
|---|---|
| Batten light point | about $78 |
| Wall light point | about $91 ($176 on a column) |
| Waterproof switch | about $76 |
| 32 A air conditioning circuit | about $665 each |
Other examples
| Item | Price |
|---|---|
| Integral slab under porch and alfresco | about $2,270 |
| Porch and alfresco tiling (builder) | about $4,950 |
| Tender deposit (one builder) | $1,500 |
| Contract deposit | 5% of the contract price |
Tips
- Finalise structural changes at tender stage; later changes cost more and can delay the start
- Changes after the colour appointment often attract a fee per change
- Ask for each upgrade as a separate, itemised variation; lenders may ask for them
- Some items (tiles, blinds, driveway) can cost less done privately after handover
Related guides
Everything on this page is for educational and informational purposes only. Costs, prices, interest rates, rules and government schemes change over time, and the figures shown are approximate examples that may already be out of date. Nothing here is financial, tax, legal, building or professional advice, a recommendation or a quote. Do your own research, get written quotes and seek advice from qualified professionals before making any decision.