What Does a New Home or Major Renovation Really Cost?
Darlington Home Renovation Design - Bronika Carter Design
When you're planning a new home or major renovation, it’s natural to focus on the big-ticket construction costs.
After all, that's the part you see coming to life — bricks, timber, finishes, and fittings.
But construction is only one part of the full picture.
To set your project up for success (and avoid hidden surprises later), it’s important to understand the other essential investments involved — especially professional design services, approvals, consultants, and a contingency fund for unexpected costs.
Here’s a breakdown of how a typical project budget is often allocated:
Typical Project Budget Breakdown
Construction Costs — 70–75%
This covers building the structure itself: materials, labour, fittings, finishes, and your builder's project management.
Design & Documentation — 8–15%
Professional design services are an upfront investment that pays off throughout your project.
Good design ensures your home works beautifully for your lifestyle, looks and feels right, and helps avoid expensive mistakes during construction.
Engineering & Consultants — 5–10%
Depending on your project, you may need structural engineers, surveyors, energy assessors, and other specialists to meet regulations and standards.
Council / Permit Fees — 2–5%
Approvals are part of the process for most builds and renovations, and it's important to allow for the time and costs involved.
Contingency Fund — 5–10%
Even the best-planned projects can encounter surprises — such as material delays, price increases, or site conditions.
A contingency gives you breathing room if something unexpected arises.
Design costs are an investment in creating a functional, beautiful home that meets your needs — and often save you money during construction by avoiding expensive mistakes.
Why Design Costs Matter
Professional design is often misunderstood as an “extra” or a “nice to have.”
In reality, design is one of the smartest investments you can make.
A thoughtful, well-planned design:
Prevents costly mistakes and variations during construction
Ensures your home is functional, future-proof, and beautiful
Helps you manage your budget by making smart choices early
Adds long-term value to your property
Design services typically represent 8–15% of the build cost, depending on the size, complexity, and level of support you need.
At Bronika Carter Design, I guide you through every stage — from concept to detailed documentation — ensuring that your home feels exactly right for the way you live.
Setting Realistic Expectations
Budgeting for the full scope of your project — not just the construction costs — gives you the best chance of a smooth, enjoyable experience.
It also means fewer surprises, better decision-making, and a finished home you’ll love for decades.
When we work together, I’ll help you align your wish list, your style, and your budget, ensuring every decision moves you closer to your vision.
If you’re ready to explore your project with clarity and confidence,
Send me an email about your plans to book a discovery call with me here ➔ Book Discovery Call.
Let's create a home that works for your life — beautifully, practically, and sustainably.
