Building Designer vs Architect: Which One Do You Need?

If you’re planning a build or renovation, you’ve probably asked yourself: Who should I hire — a building designer or an architect? It’s a common question, and a valid one. The difference between an architect and a building designer isn’t always obvious, especially if you’re not familiar with how the building industry works in Australia. …

11 June, 2025
Building Designer vs Architect: Which One Do You Need?

If you’re planning a build or renovation, you’ve probably asked yourself: Who should I hire — a building designer or an architect? It’s a common question, and a valid one. The difference between an architect and a building designer isn’t always obvious, especially if you’re not familiar with how the building industry works in Australia.

Let’s walk through the key differences and clear up the confusion once and for all.
 

What’s the Difference Between a Building Designer and an Architect?

In the building designer vs architect Australia debate, qualifications are the first real divider.

A building designer in Australia isn’t required to hold a specific qualification, although many hold a master’s degree in architecture. What matters is that they’re registered with the appropriate authority in their state or territory. 

On the other hand, the term “architect” is legally protected. To use it, someone must complete an architecture degree, complete practical experience, and pass the Architectural Practice Exam. So, if you’re wondering, what is an architect versus a building designer, it comes down to registration.

In most everyday builds, the distinction doesn’t change what gets delivered — it just affects how the designer got there.
 

The Design Work Itself

Here’s where the difference between architect and building designer shows up in real projects.

Both professionals prepare plans, work with consultants, and submit drawings to the consent authority.  The main aspect that sets the two professionals apart is that architects are licensed to design residential flat buildings in states like NSW.

Unlike architects, building designers have multiple levels of accreditation: 

  • Low-Rise Accreditation – Designers focused on smaller, residential or low-rise commercial buildings.
  • Mid-Rise Accreditation Designers working on multi-storey residential or commercial projects with mid-level complexity.
  • Open Accreditation – Experienced designers who work on large-scale, multi-storey buildings across commercial and residential sectors. 

The key is matching the skill set to your project, not the job title.

To qualify, you must be working with an accredited building designer and their level of accreditation in NSW., visit the BDAA design professional register
 

Budget and Practicality

Most homeowners exploring building designer vs architect choices are working with a budget. And in almost every residential project, a building designer is the more cost-effective option.

Their fees are generally lower and more predictable. You’re paying for design, not for unnecessary extras.

If your project is highly custom, conceptual, or on a tricky site, then yes, you might need someone with architectural registration or a building designer with open accreditation. 
 

What is a Building Designer?

They’re professionals who prepare floor plans, elevations, shadow diagrams, and everything else you need to get council or private certifier approval. Most work closely with builders, engineers, and surveyors, and they’ll often manage the process for you from start to finish.
 

Real Examples: Who’s the Better Fit?

Case Study 1: A homeowner in Parramatta wanted to build a luxury dual occupancy.. They worked with a building designer who configured the layout, ensured the design complies  with CDC rules, and avoided a full DA. The result was a fast approval and lower design costs.

Case Study 2: A small developer in the Inner West planned a mixed-use site with retail on the ground floor and apartments above. The site faced traffic constraints, acoustic issues, and compliance hurdles. They engaged an architect to manage the documentation and approval pathway.

The takeaway? It’s about fit. Not titles.
 

Building Designer vs Architect in Australia: A Quick Recap

If you’re still comparing a building designer vs an architect in Australia, here’s a quick recap:

  • Project under three storeys? → Building designer 
  • Multi-storey development or public-use space? → Possibly someone with architectural registration 
  • Want concept-driven design with bespoke detailing? → It’s worth getting a quote from a building designer, ideally with open accreditation. 

 

Conclusion

The question of building designer vs architect comes down to what your project really needs.

If your goals are clear and your budget matters, a building designer will give you everything you need, without overcomplicating things.

And if you’re still unsure, we can help you decide. At ES Design, we work on all sorts of projects — from luxury homes,  duplexes, terraces and beyond. We know what local councils and private certifiers need, and we’ll guide you through every step.

Ready to chat? Contact us and tell us about your project.
 

FAQs

1. I’m building a house — who should I actually hire?

It depends on what you’re building and how complex the job is. If it’s a standard home, renovation, or even a custom design under three storeys, a building designer with low-rise accreditation is often the right call. They’re qualified and know how to get plans through the council without dragging things out.

For bigger, trickier builds — like public-use buildings or sites with strict overlays — you might want to consider a building designer with open accreditation or an architect 

2. Do I really need someone with full registration for a small reno?

Not usually. Most renovations don’t need a registered architect. A qualified building designer can handle drawings, approvals, and coordination just fine.

3. Can building designers deal with council approvals?

Yes — they do it all the time. Building designers are licensed to prepare and submit development applications and CDC packages. They’ll work with certifiers, engineers, and consultants so your plans are compliant and ready for sign-off. You won’t be left managing it all on your own.

4. What’s the price difference between the two?

Generally, building designers are more affordable. Their fees are clear, usually fixed or broken into stages. Someone with architectural registration may charge more, especially for larger or concept-heavy projects. If you’re on a budget but still want good design, a building designer gives you a better return for your money.

5. What if my design ideas aren’t exactly ‘standard’?

That’s fine — not all custom homes need an architect. Many building designers are creative, and some focus entirely on custom homes. They know how to design around light, airflow, slope, and lifestyle. So if you want something special but still practical, they’re a great option.

6. Has this actually worked for real people?

Yes. Head over to our Projects page and you’ll see it for yourself. These aren’t concept sketches. They’re homes that were designed and approved, all by experienced building designers.

7. Still not sure if a building designer is enough?

Ask yourself three things:

  • Is my project under three storeys? 
  • Do I need someone who knows the approval process inside and out? 
  • Do I want clear, upfront fees?

If the answer is yes, then a building designer is likely all you need. 

Your Source of Building design News and Information

Stay up to date with the latest industry news, including key changes to planning and design regulation. 

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