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How to plan a renovation without losing your mind (or your budget)

Renovating your home can be one of the most rewarding experiences — but let’s be honest, it can also be one of the most stressful. Between unexpected costs, dust in every corner, and living in a semi-construction zone, it’s easy to feel overwhelmed.

But with a bit of planning, the right team behind you, and clear communication, your renovation doesn’t have to derail your life (or your bank account). Here’s how to approach your project with confidence — and come out the other side with your sanity intact.

Start with a clear vision

Before you even think about budgets or builders, take time to figure out what you’re actually trying to achieve. Are you creating more space? Modernising an older home? Improving functionality? Your goals will shape everything that follows, so get specific early on.

Tip: Create a ‘must-have’ list and a ‘nice-to-have’ list. It’ll help when compromises inevitably need to be made.

Set a realistic budget — and add a buffer

It’s no secret that renovations often cost more than expected. Labour, materials, and surprises behind old walls can all add up. The best approach is to be realistic from day one — and to build in a contingency of around 10–15% for those unavoidable “uh-oh” moments.

Don’t forget to factor in things like:

  • Council fees and consents
  • Design and consultant costs
  • Temporary accommodation (if needed)
  • Living costs during the build

A good builder will help you understand where the money goes — and how to avoid budget blowouts.

Choose your builder wisely

This is one of the biggest decisions you’ll make. You’re trusting someone with your home, your time, and a lot of money. Look for builders with experience in renovations (not just new builds), who can explain their process clearly and offer references from past clients.

And if a builder offers a free quote within 24 hours? It’s probably not detailed enough to trust.

At Lewis Build, we use a Master Builders Preliminary Agreement to take you from initial consultation through to contract, and we use Utecture 3D modelling to help you visualise your renovation before work begins.

Understand the staging of your renovation

Staging is crucial — especially if you plan to live in the home during the project. A renovation typically unfolds in phases:

  1. Design and planning
  2. Demolition
  3. Structural work (framing, foundations)
  4. Services (plumbing, electrical)
  5. Interior fit-out (linings, cabinetry, painting)
  6. Final touches and handover

Knowing what to expect at each stage helps you plan ahead — especially when it comes to noise, dust, and access.

Decide whether to live on site or move out

This is a big one. Living through a renovation is possible, but it’s not always pleasant — especially during major works like bathrooms, kitchens, or structural changes. If your budget allows, consider moving out temporarily to avoid disruption (and maintain your sanity).

If you do stay:

  • Set clear boundaries with your builder
  • Protect furniture and belongings
  • Be realistic about daily noise and mess

Communicate early and often

Most renovation issues come down to poor communication. The best way to avoid confusion is to set clear expectations from the start, ask questions as you go, and choose a builder who’s proactive with updates.

At Lewis Build, we provide regular site meetings, a dedicated point of contact, and open communication throughout every stage of the renovation.

Focus on quality, not just cost

It’s tempting to save money by going with the cheapest quote — but shortcuts almost always cost more in the long run. Poor workmanship, hidden costs, and delays can quickly turn a “bargain” into a budget blowout.

Instead, invest in quality materials, experienced professionals, and a team you trust.

Final thoughts

A well-planned renovation can transform how you live in your home — but it takes the right approach from the start. Think ahead, choose the right builder, and be prepared for the inevitable bumps along the way.

Most of all, remember that the stress is temporary — but a great renovation will pay off for years to come.

Thinking about renovating? We’d love to help you plan it right. Get in touch with the team at Lewis Build to talk through your ideas and get expert advice before you begin.

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Ben Lewis

Ben Lewis is the owner and Director of Lewis Build and a Licensed Building Practitioner with more than 20 years of experience. As a young man, Ben was inspired to build by his uncle, who was a Master Carpenter in the Auckland region.

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