Thinking of adding more space to your home? Whether it's a second storey or a larger living area, a well-planned extension can transform how you live, without the stress of moving.

At MLJ Constructions, we know that high-end renovations and extensions are big decisions. That’s why we make the process simple, clear, and tailored to how you want to live. Here’s what you need to know to get the most out of your extension project.

1. Start With a Clear Purpose

Before diving into design ideas, ask yourself: Why are we extending?

Is it for a growing family, extra storage, better entertaining space, or future resale value? Having clarity early on keeps the project focused and helps guide everything, from budget to layout and finishes.

Tip: Think about how your lifestyle will change in the next 5–10 years. A good extension meets today’s needs but also plans for tomorrow.

2. Understand the Timeline (and Be Realistic)

Every extension is different, but here’s a general guide:

  • Design & planning: 4–8 weeks
  • Approvals: 2–6 weeks (depending on council)
  • Construction: 12–20+ weeks (depending on size and complexity)

At MLJ, we don’t overpromise. We give you honest, realistic timeframes and keep you updated every step of the way.

3. Set a Smart Budget (and Build in Buffers)

The cost of a home extension varies depending on materials, size, and site conditions, but here’s a general idea:

  • Ground floor extensions: from $3,000–$4,000 per sqm
  • Second storey additions: from $3,500–$4,500 per sqm

We recommend allowing a 10–15% buffer for unexpected costs. A solid budget avoids surprises and lets us deliver the high-end finish MLJ is known for.

4. Know the Approval Process

You’ll likely need either a DA (Development Application) or a CDC (Complying Development Certificate). It depends on the size of your extension, your zoning, and any existing site restrictions.

We handle this for you, but we also make sure you understand what’s happening and why. It’s your home, and you should feel in control.

5. Think Long-Term With Design

Great design isn’t just about space, it’s about flow, light, storage, and future resale value. We work with trusted designers and architects who know how to blend new with existing.

Good design should feel like it’s always been part of your home.

Whether it’s matching bricks or seamlessly extending your roofline, the little details make a big difference.

6. Live Through It, or Not?

Depending on the size of your extension, you might be able to stay in your home. But for larger builds, especially second-storey additions, it may be safer and less stressful to relocate temporarily.

We’ll advise you early, so you’re not caught off guard, and can plan around it.

7. Communication is Key

At MLJ, we pride ourselves on clear, honest communication. You’ll have a dedicated point of contact and regular updates throughout the project.

We don’t do surprises. We do transparency, professionalism, and doing the job right the first time.

8. Keep Disruption to a Minimum

Renovations can be messy, but they don’t have to be chaotic. We follow strict safety and cleanliness protocols, and we always respect your home and your neighbours.

That means clear site boundaries, tidy workspaces, and respectful tradies who show up on time and clean up after themselves.

Why Choose MLJ Constructions?

Experienced residential builders who specialise in high-end home extensions

  • Full-service support from planning and approvals to build and finish
  • Tailored solutions that suit your home, your style, and your life

If you're looking for reliable home contractors near you who treat your home like their own, MLJ is the team to trust.

 

Ready to extend?

Let’s chat about how we can bring your ideas to life, without the usual renovation headaches. Reach out today and let’s talk about what’s possible for your home.

 

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