How To Tell If The Numbers Stack Up in Queensland

You own a site with potential, or you are eyeing one. The idea sounds good, whether it is a subdivision, a granny flat or a duplex, but you do not yet know if the numbers work. That gap between "this could be worth doing" and "the numbers actually stack up" is where most of the expensive mistakes live.

A development project has two kinds of costs: the ones that are public and checkable before you spend a cent on plans, and the ones that are site-specific and quoted only once you know exactly what you are building. Knowing which is which, and where to find each one, is the first test of whether a project is worth pursuing.

Purpose Property helps property owners and small-scale developers across Queensland work out what their site can deliver, and whether the numbers stack up, before they commit.

Below, we walk through the self-test you can run now, the inputs you can verify, and what to do when you need answers your planning scheme cannot give you.

Why getting the numbers wrong costs more than people expect

Most projects that fail on feasibility do not fail because the idea was bad. They fail because the owner assumed costs that were not checked, or discovered a planning hurdle after spending money on plans and reports. A site that looks straightforward from the street can carry overlays, servicing constraints or assessment triggers that change the whole picture.

The risk is not just financial. Time spent chasing a project that does not stack up is time not spent on one that does. A self-test against the public inputs costs nothing and takes an afternoon. Skipping it and going straight to a surveyor or town planner can cost thousands before you know whether the project is viable. Your town planner, registered surveyor and accountant are the right people to confirm the details for your site: the self-test gets you to the right questions, not the final answers.

What does it mean for a development to stack up in Queensland?

A Queensland development project stacks up when the verified public costs, the site-specific costs quoted by your consultants and the end value of what you create all point in the same direction. The public inputs set the floor: application fees, infrastructure charges and the planning scheme's rules tell you what council will expect. The site-specific inputs, including survey, town planning, engineering, civil works and holding costs, vary by site and are quoted per project. No one can tell you a total before they see your land, your overlays and your servicing requirements. A Phase 1 feasibility and logistics report through our project consulting services maps both sides before you commit to either.

What a feasibility and logistics report checks for this question

• The zone and overlays on your site: what the planning scheme allows, what triggers code or impact assessment, and what overlays (flood, character, infrastructure) apply.
• Minimum lot sizes and size limits that apply: the scheme's thresholds for your zone and precinct, and whether your site clears them or needs a different pathway.
• Application fees that are publicly set: the council's 2026-27 fee schedule shows what a development application costs before you lodge one. These are a confirmed input, not an estimate.
• Infrastructure charges: each council's charges resolution sets the charge per dwelling or per lot. These are another confirmed input. The State maximum from 1 July 2026 is the cap; each council sets its own charge up to that ceiling.
• Water and sewer connection fees: the relevant utility publishes its fee list. In some councils this is included in the infrastructure charge; in others it is a separate notice.
• The consultants each pathway needs: a registered surveyor, town planner, RPEQ engineer and certifier each have a role, and knowing who does what helps you scope the project before you engage anyone.
• Holding cost and timing risks: the DA Rules set statutory assessment periods, and information requests or public notification can add to them. These cannot be totalled in advance, but they can be planned for.
• Whether to develop, hold or sell: from an investor's perspective, this is the question the feasibility brings into focus.

How does Purpose Property's project consulting help you check whether the numbers stack up in Queensland?

Running a self-test against the public inputs is a useful first step. Where it leads is usually a set of questions only a site-specific assessment can answer. Purpose Property's project consulting moves you from the public inputs to a clear picture of what your site can deliver, using a two-phase process designed to find the hurdles before they cost money.

Step 1: Book a free strategy call

Get in touch with Purpose Property and we will work through your site, your goals and your timeline to work out whether a feasibility report is the right next step.

Step 2: Phase 1 feasibility and logistics report

We prepare a report through the Phase 1 feasibility and logistics report that maps the site's development pathways, the planning scheme's rules, the public costs and the hurdles to each pathway.

Step 3: Walk through the findings in a 45 minute consult

We walk you through the report in a 45 minute consult, covering what the site can and cannot deliver and what the next steps look like for each pathway.

Step 4: Choose your pathway

With the findings in hand, you choose whether to develop, hold or sell, based on a clear picture of what each option involves, not an assumption.

Step 5: Build the team

We source and review the builders, town planners, engineers and designers your chosen pathway needs, so you are not choosing professionals blind.

Step 6: Coordinate through to completion

We track progress across all parts of the project, review key documents from an investor's perspective and keep every party aligned through to completion.

What happens when owners start a project without a feasibility check

Starting a subdivision without a feasibility check is a bit like signing a building contract before seeing the plans. You might get what you expected. The surprises tend to be expensive. The most common failure point is not the planning scheme: it is the costs and constraints that sit below the surface of a zone map. Infrastructure charges, servicing requirements and overlay triggers are all knowable before you engage anyone. Owners who skip the check often find them after spending on survey or town planning work that cannot be recovered.

A second failure point is assuming the consultant costs. Survey, town planning, engineering, civil works and certifier fees are all quoted per site. They vary by land size, slope, servicing distance, assessment pathway and the complexity of what you are building. There is no industry standard rate that applies across Queensland. Owners who budget from memory or from a friend's project often find the real figures are higher, or that a cost category they did not plan for, such as connection works or a retaining structure, appears once someone looks at the site properly.

"Most of the expensive surprises in a project can be found before you spend anything on plans. Check what the site can deliver and where the hurdles are, then decide whether to develop, hold or sell."

Luke Wiles, Director and Principal Buyers Agent, Purpose Property

The public inputs you can verify right now

Before any consultant is engaged, several inputs are publicly available and can be confirmed without spending anything. These are the starting points for any self-test. Each one is set by council or the State for a financial year or under a named resolution, and each changes over time: always check the council's current schedule before you budget.

Application fees for the 2026-27 financial year are published by Brisbane City Council, Logan City Council and Ipswich City Council. For a reconfiguring a lot application, Brisbane's fee is $4,500 base plus $900 per additional lot (code assessable); Logan's is $5,060 base plus $1,055 per lot (code assessable); and Ipswich's is $1,155 per lot, with a minimum fee of $3,530. Council fees change each financial year, so check the council's current fee register before you budget.

Infrastructure charges are set in each council's charges resolution and vary by council area and dwelling type. Under Brisbane City Council's Infrastructure Charges Resolution (No. 15) 2026, the Council adopted charge is $18,793.33 per dwelling with three or more bedrooms, or per lot for a reconfiguring a lot application. This is the Council share only: Urban Utilities levies water and sewerage separately under its own notice. Under Logan City Council's Charges Resolution (No. 12) 2025, in effect from 1 September 2025, the combined charge (which includes water and sewerage, since Logan Water is part of council) is $36,670.70 per dwelling with three or more bedrooms, or per lot. The State maximum adopted charge from 1 July 2026 is $38,029.25 per dwelling with three or more bedrooms: this is the ceiling, not what a reader pays. Charges are indexed by the ABS Producer Price Index between levy and payment. Infrastructure charge figures change each financial year and with each new resolution: check the council's current charges resolution or use the council's online estimator before you budget.

The planning scheme for your council area is publicly available online and shows the zone, overlays and minimum lot size thresholds that apply to your site. Brisbane's City Plan 2014 (current version v37.00/2026, effective 18 September 2026) is searchable through City Plan online and Development.i. Logan's Planning Scheme 2015 (version 9.2, commenced 1 July 2025) is available through the Logan PD Hub, which also has an infrastructure charges estimator. Ipswich's City Plan 2025 (version 2, in effect from 1 July 2026) is available through the ePlan viewer with interactive mapping. Checking these tools costs nothing and tells you the zone, overlays and likely assessment pathway before you engage a town planner. Your development and renovation brief shapes everything that follows.

Frequently Asked Questions

How do I know if my block is big enough to subdivide in Queensland?

Minimum lot sizes are set by your council's planning scheme and vary by zone and precinct. In Brisbane's Low density residential zone the minimum is 450m2 for a front lot; in Logan's Suburban precinct it is 400m2; in Moreton Bay the general residential zone guide is 600m2. Lot size is one test only: frontage, shape, slope, overlays and the scheme's codes also apply, and council decides on the application.

What are infrastructure charges and who sets them?

Infrastructure charges help councils fund shared networks such as roads, parks and stormwater. Each council sets its own charges in a charges resolution, up to the State maximum. From 1 July 2026 the State maximum is $38,029.25 per dwelling with three or more bedrooms. The amount you pay is set in your infrastructure charges notice, not the State maximum. Infrastructure charge figures change each financial year: check the council's current resolution or online estimator before you budget.

What costs cannot be confirmed until someone looks at my site?

Survey, town planning, engineering, civil works, connection works and certifier fees are all quoted per site. They depend on your land size, slope, servicing distance, assessment pathway and what you are building. No published schedule applies across Queensland: these costs are confirmed by your consultants once they have assessed the site.

How long does a development application take to be decided in Queensland?

The DA Rules give council 35 business days to decide a code or impact assessable application. Information requests (the applicant has three months to respond), public notification for impact assessment (at least 15 business days) and agreed extensions all add to this period. These are the statutory periods in the rules, not a total for your application: your town planner confirms what applies to your project.

Do I need a town planner, or can I lodge a development application myself?

You can lodge an application yourself, but a town planner helps you address the assessment criteria, reducing the risk of an information request or a refusal. For code assessable applications in Brisbane, RiskSMART is available for decision-ready applications prepared by an accredited consultant, which can speed up assessment. Whether a town planner is worth engaging depends on the complexity of your site and pathway.

What does a project consultant do that a builder or town planner doesn't?

A project consultant works for you, the owner, across the whole project. A builder manages construction; a town planner addresses the planning scheme; an engineer solves the technical design. A project consultant sources and reviews each of those professionals, tracks progress across all parts of the project, reviews key documents from an investor's perspective and advises you so the numbers stack up at every stage.

Are there tax implications I should know about before developing?

GST can apply when you sell new residential premises you have built, and the margin scheme is one way of calculating GST on some property sales. Queensland land tax applies where your total taxable land value at 30 June reaches the relevant threshold, and a subdivider discount can apply to undeveloped subdivided lots held for sale when set conditions are met. Your accountant confirms how each of these applies to your project.

Your Next Steps

Getting a development project right in Queensland starts with knowing what you can confirm before you spend anything, and what can only be confirmed once someone looks at your site. The gap between a good idea and a project that actually stacks up is almost always found in that second category, and finding it early is far less expensive than finding it after you have committed to plans.

Ready to find out which pathways your site can support? Contact Luke Wiles for a free strategy call or call 0414 663 531. We will map your site's development pathways and hurdles, and show whether the numbers stack up before you spend on plans.

Purpose Property · Greenslopes, QLD · General information only: this article does not constitute financial, legal, planning, engineering or investment advice. Purpose Property does not provide legal, financial, taxation, town planning, engineering or other professional advice. Please consider your own circumstances and seek independent advice from qualified professionals before making any property, development or investment decisions.