Planning a home renovation is exciting, but sticking to your budget? That’s the tricky part.

Even the most organised renovators can get caught off guard by hidden costs that creep in along the way. To help you plan smarter and avoid budget blowouts, we’ve rounded up five common renovation expenses that are often overlooked.

1. Temporary Living Costs

Depending on the scale of your renovation, you may need to move out temporarily. Whether it’s a short-term rental, staying in a hotel, or crashing with family, these costs can add up, especially if the project takes longer than expected. Always factor in a backup accommodation plan, just in case things run over time.

2. Permit and Council Fees

Many home improvements require approval from your local council, and those applications don’t come free. Development applications, planning permits, and inspections can cost anywhere from a few hundred to several thousand dollars depending on the scope of work. Check your local regulations early and include these in your budget to avoid delays and surprise costs.

3. Site Preparation and Demolition

It’s easy to focus on the shiny finished product, but the work that happens before your builder even starts, clearing, demolition, waste removal, can cost more than you think. You may also need to factor in asbestos removal, tree clearing, or old wiring/plumbing upgrades if your property is older.

4. Unexpected Structural Issues

Once the walls come down, things can get unpredictable. Termite damage, rotting timber, water leaks, and unstable foundations are all issues that are difficult to spot until demolition begins. It’s wise to set aside a contingency budget (usually around 10–15% of your total renovation budget) to cover these kinds of surprises without stress.

5. Upgrades & Changes Mid-Project

That tap looked fine on paper… until you saw the matte black one your neighbour installed. Last-minute changes to fixtures, finishes or layouts are one of the most common reasons renovations go over budget. Give yourself some wiggle room for those “must-have” upgrades that pop up mid-project, and try to finalise as many design decisions as possible before the build starts.

Renovate With Confidence

The key to a successful, stress-free renovation is planning for the known unknowns. At AMS Property Renovations, we pride ourselves on clear quotes, honest advice, and guiding our clients every step of the way, from initial planning to final touches.

Thinking of starting your renovation? Get in touch with AMS Property Renovations for a free quote and expert guidance that helps you plan smarter and build better.