How Much Does a Draftsman Cost? (Percentage vs. Fixed Fee)
How Much Does a Draftsman Cost? (Percentage vs. Fixed Fee)
When you are planning a renovation or new home, the first question is usually about the build cost. But the second question is just as important: “How much will the plans cost?”
Unlike buying a product off a shelf, design fees can be confusing. Some architects charge a percentage of your build cost, while draftsmen typically charge a fixed fee. If you are comparing quotes, you need to compare apples with apples.
This guide explains the difference between fee structures and what you can expect to pay for professional drafting services in Sydney in 2026.
The Two Main Pricing Models: Percentage vs. Fixed Fee
To understand your quote, you first need to understand how the professional is charging you. In the Australian residential market, there are two common methods:
1. The Percentage Fee (Common with Architects) Many architects charge fees based on a percentage of the final construction cost—typically between 8% and 15%.
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The Risk: If your build budget goes up (e.g., you choose expensive tiles or the price of timber rises), your architect’s fee goes up too. It can be hard to budget for this uncertainty.
2. The Fixed Fee (Common with Draftsmen/Building Designers) At JJ Drafting, we prefer this model. We provide a Lump Sum Fixed Fee for the design and documentation work.
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The Benefit: You know exactly what the drawings will cost before we start. Whether your kitchen tap costs $100 or $1,000, our fee remains the same. This gives you budget certainty.
What Actually Goes Into the Fee? (The Scope of Works)
A “cheap” quote is often missing critical steps that you will have to pay for later. When reviewing a drafting fee proposal, check that it covers these four essential stages:
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Site Measure & Investigation: Does the fee include visiting your property to measure the existing house and checking the Council’s planning rules (LEP & DCP)?
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Concept Design: This is the creative part. Does the fee cover the initial layout options and revisions to get the design right?
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Planning Approval (DA or CDC): This is the big one. The fee must include preparing the specific architectural plans required for Council (DA) or a Private Certifier (CDC), including the Statement of Environmental Effects.
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Construction Documentation (CC): Warning: Many cheap quotes stop at the DA stage. You cannot build from DA plans. You need detailed “Construction Certificate” drawings for your builder. Make sure you know if this is included or extra.
Why “Cheap” Plans Can Cost You Thousands Later
It is tempting to choose the lowest drafting quote, but beware of the “bare minimum” set of plans.
Builders price their jobs based on the detail in the drawings. If a set of plans is vague or lacks detail, the builder has to guess. This leads to:
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“Prime Cost” (PC) Items: The builder puts in a low allowance because the plans didn’t specify the detail, leading to a cost blowout later.
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Variations: If the drawings don’t show exactly how the new roof joins the old roof, the builder will charge a “Variation” to fix it on site. drafting fees Sydney
A comprehensive, professional set of plans from JJ Drafting acts like a contract between you and the builder. It leaves less room for interpretation, protecting your budget during the build.
Value for Money: The JJ Drafting Approach
We believe in transparency. Our goal is to provide a high-quality, approved design for a fair, fixed price.
We don’t believe in penalising you for choosing expensive finishes (which happens with percentage fees), and we don’t believe in hidden extras. We provide a detailed Fee Proposal upfront that breaks down exactly what is included, from the first site visit to the final approval.
Ready for a clear, fixed-price quote for your project?
Don’t guess your budget. Contact JJ Drafting today to discuss your ideas. We will provide a detailed proposal so you can start your project with confidence.