Architect vs building designer vs draftsperson: who do you actually need?

Three different professions, three price points, and three different right answers depending on whether you are building a custom home, renovating, or just need plans drawn properly. How to tell which one your job needs.

If you've asked around about getting plans drawn, you've probably been told to hire three different professions by three different people. They're not interchangeable, and the difference isn't only price.

The short version

Architects

An architect has completed an accredited degree, logged supervised experience, passed a registration exam and is registered with a state architects board. "Architect" is a legally protected title in Australia: someone who isn't registered can't use it.

What you're buying is design judgment, and the service usually runs the whole way: concept, design development, documentation, help selecting a builder, and contract administration during construction. That last part (someone independent checking the build against the drawings) is the piece people most often don't realise they're giving up when they go cheaper.

Worth it when: the site is difficult (steep, narrow, heritage, awkward orientation), the project is genuinely custom, the design will materially affect how the house lives or what it's worth, or you want someone representing your interests against a builder.

Overkill when: you want a fairly conventional house drawn up so you can price it and build it.

Fees are commonly a percentage of construction cost for full service, or fixed fees per stage. Get the stages in writing: "full service" and "concept only" are very different products at very different prices.

Building designers

A building designer does design and documentation, typically residential, typically without the contract-administration end. Regulation differs by state: some license or register building designers, others don't, so check where you are.

In practice this is the middle of the market and where a lot of good Australian residential work gets done: design input plus a documented set, usually below architectural fees.

Worth it when: you want help designing a new home or a significant renovation, the site isn't extraordinary, and you don't need the building contract administered for you.

Draftspeople

A draftsperson produces drawings. Give them a brief, a sketch, or a plan you've drawn, and you get a properly documented set: dimensioned, coordinated, and prepared for the approvals your project needs.

Some draftspeople design too, and the line between a draftsperson and a building designer blurs in practice. But what you should assume you're buying is documentation, not design.

Worth it when: you know what you want and can describe or draw it, the project is conventional, and you need plans for approval and for a builder to price.

The risk: bring a poorly resolved plan and you get a beautifully documented poorly resolved plan. Documentation doesn't fix layout problems, and a draftsperson isn't being paid to argue with your brief.

Nobody's drawings are the whole set

Whichever you engage, plans are one part of what a build needs. Depending on your project and state, you'll also need some of:

• Engineering: footing and slab design from a structural engineer
• Soil classification: a geotechnical report, which the engineer needs
• Energy rating: a thermal performance assessment against the NCC
• Survey: a contour and detail survey of the block, often needed before design
• Town planning: a planning application, if your project needs one
• Certification: a building surveyor or certifier issuing the approval

This is why "just some plans" quotes vary so wildly: they may or may not include the consultants. Ask what's in and what's extra, itemised.

How to reduce what you pay, honestly

Billable hours go into two things: working out what you want, and drawing it. You can't remove the second. You can shrink the first.

• Arrive with a resolved brief. Room by room: what you need, what you'd like, what you'd trade away.
• Arrive with a plan, even a rough one. Turning your layout into documentation is faster than extracting a layout from a conversation.
• Bring the block's dimensions and setbacks, and a survey if you have one.
• Decide the things that move walls early. Bathroom count, kitchen layout, whether you want a second living area. Late changes to these are the expensive ones: finishes can change late for almost nothing.
• Hand over editable geometry. A DXF opens in their CAD software as real lines they can build on. A photo of a sketch has to be retraced from zero. This is the most concrete thing you can do: it converts your effort directly into their saved hours.

That last point is the specific job Draftie does in this chain. It takes your sketch or your brief and produces a scaled, dimensioned concept plan plus a DXF, so whoever you engage starts from geometry instead of a blank sheet. It does not replace them: there's no engineering, no energy rating and no certification in what it produces, and those aren't optional parts of building a house.

For what to hand over and in what format, see how to turn a hand sketch into a real floor plan.

FAQ

Is an architect worth it for a normal house?

For a conventional house on a straightforward block, a building designer or draftsperson usually gives you what you need for less. An architect earns their fee on difficult sites, genuinely custom designs, and when you want someone administering the building contract on your behalf.

Can a draftsperson design my house?

Some do, and many are good at it, but assume you're paying for documentation rather than design unless you agree otherwise. If you want design input, say so up front and ask specifically whether it's included in the quote.

Is "architect" a protected title in Australia?

Yes. Only someone registered with a state architects board may call themselves an architect. "Building designer" and "draftsperson" are regulated differently, and that varies by state.

What's the difference between a building designer and a draftsperson?

Broadly, a building designer takes responsibility for the design as well as the drawings, while a draftsperson documents a design that already exists. In practice the roles overlap, so ask each candidate what they'd actually be doing on your job.

Do I need council approval for my plans?

Usually some form of approval applies, and what kind depends on what you're building and where. Many projects need a building approval and some also need planning approval, issued by a council or a private certifier. Your designer will tell you which apply and prepare the drawings to suit.

Will they accept a plan I drew myself?

Generally yes, and most prefer a clear starting point, but as a concept, not as documentation. Give them a PDF to read and a DXF to work from, and expect them to change things for reasons that will usually be good ones.

Related guides

General information for Australian residential projects, not professional advice. Product specifications and prices change, confirm current details with the manufacturer or supplier before you rely on them. Draftie produces concept plans, not construction documents.