A community impact assessment, usually called a social impact assessment (SIA) in Australian planning, is a structured report on how a development will affect the people around it, for better and for worse, and what you will do about those effects. In Queensland it is mandatory for a short list of large projects. For most dual occupancies, townhouses and subdivisions, you won't prepare a formal SIA. You will still need to show that your application deals sensibly with the amenity, traffic and neighbourhood concerns that drive community objections.
This guide explains the formal requirement, how the idea applies to everyday Brisbane and South East Queensland projects, and how to prepare an application that gives neighbours fewer reasons to object.
TL;DR
- A community or social impact assessment analyses the positive and negative effects of a project on people, then sets out measures to avoid and reduce the negative ones.
- In Queensland, the Planning Regulation prescribes a formal SIA for wind farms, larger solar farms and large battery storage facilities, and large resource projects have their own legislated requirement.
- Typical residential and commercial applications don't need a formal SIA, but they are still tested through public notification, submissions and the council's assessment.
- The number of objections is not a vote. Assessors weigh the planning merit of the issues raised against the planning scheme.
- Early site investigation and a well-argued application are the best protection against objection-driven delays.
Table of Contents
- What a community impact assessment actually is
- When Queensland requires a formal assessment
- What a formal SIA covers
- How community concerns reach a typical Queensland application
- How community impacts differ by project type
- Preparing an application that stands up to scrutiny
- Choosing a town planner for a sensitive application
- Work with a Brisbane town planner
- FAQ
- Sources
What a community impact assessment actually is
The terms are used loosely. Government guidance in Australia mostly uses "social impact assessment", and that is the phrase to look for in policy documents. The NSW guideline describes social impacts as the consequences people experience when a project brings change. It says "people" covers individuals, households, groups, communities and organisations, and that impacts can be positive or negative, direct or indirect, tangible or intangible (NSW Social Impact Assessment Guideline, July 2025).
A local government policy in Western Australia puts it as analysing, monitoring and managing the intended and unintended social consequences of a land use planning decision, including effects on community wellbeing (Shire of Narrogin draft policy D14). The wording differs by jurisdiction, but the idea is consistent: look at the people, not only the buildings.
The Queensland Government's factsheet says an SIA will generally identify, analyse and assess the social impacts of a development across key areas, develop management measures to avoid and mitigate significant negative impacts, nominate how those measures will be monitored, and conclude in a report (Queensland SIA factsheet).
How it differs from an environmental impact assessment
An environmental impact assessment looks at the physical environment: land, water, air, ecology. The SIA is one input into that broader process. The NSW guideline notes that environmental and economic changes often cause social impacts, and the SIA complements the technical studies by examining how people might experience those changes (NSW guideline). A noise report gives you decibels. The social assessment asks what that noise means for sleep, school routines or a shift worker next door.
When Queensland requires a formal assessment
The formal triggers in Queensland are narrow and aimed at large or unusual projects.
- Prescribed energy projects. The Planning Regulation prescribes social impact assessment for a wind farm, a solar farm with a maximum instantaneous output of 1MW or more, and a battery storage facility with an output of 50MW or more (Queensland community benefit page).
- Large resource projects. The Strong and Sustainable Resource Communities Act 2017 requires the proponent of a large resource project to prepare an SIA as part of the EIS. It covers community and stakeholder engagement, workforce management, housing and accommodation, local business procurement, and health and community wellbeing (Act, section 9).
- Community benefit agreements. For the prescribed projects, the SIA process includes community consultation and leads to a community benefit agreement between the proponent and the local government before a development application is lodged (Queensland CBA guidance).
Other states set their own rules. NSW requires all State significant projects to prepare an SIA under the Secretary's Environmental Assessment Requirements, scaled to the project's likely impacts (NSW guideline). Some NSW councils go further. Cessnock may ask for a social impact comment or assessment where it expects likely social impacts or significant public objection (Cessnock guidelines). Western Australia and South Australia have their own local and mining-specific rules. Don't assume that a requirement you read about in another state applies to your Queensland site.
What a formal SIA covers
Even if your project is below the threshold, the Queensland guideline is a useful checklist of what communities care about. It lists impacts such as:
- changes to community values
- how people live, work and play
- culture and history
- physical safety and exposure to hazards
- quality of life, including liveability and aesthetics
- access to infrastructure and services
- physical and mental health and wellbeing
- changes to livelihoods
The Queensland guideline also requires management measures for all potentially significant negative impacts, and the report must show that the hierarchy of avoiding and then mitigating impacts has been followed (Queensland SIA Guideline, July 2025).
The usual process
The NSW guideline describes three phases: scoping in early project development, assessment (analysis and management measures, producing the SIA), and post-approval implementation of the measures (NSW guideline). Within that, councils expect:
- A baseline. Waverley Council's guidelines call for a social baseline study documenting the existing social environment and trends, using surveys and existing data (Waverley guidelines).
- Engagement. Cessnock's guidelines say engagement is about identifying potential and actual impacts, not gaining consent from the affected community (Cessnock guidelines).
- Analysis. The NSW guideline lists workshops, interviews, surveys, project versus no-project scenarios, comparative studies and risk and opportunity assessment as accepted methods.
- Management measures. Specific, owned actions, with monitoring.
- A report by a suitably qualified person. Cessnock requires a standalone report that sets out the author's credentials and gives the council enough information to decide.
One point from South Australia's guidance applies to every project: early, ongoing engagement helps identify issues sooner and gives proponents time to respond, which can save time and money (SA Department for Energy and Mining, MG45).
How community concerns reach a typical Queensland application
Most of our clients are building dual occupancies, townhouses, small subdivisions, childcare centres or health care facilities. There is usually no formal SIA, but neighbours get a say if the application is publicly notified. Notification depends on the type of assessment and the planning scheme, and a town planner can tell you early whether your application will be notified.
As one Queensland example, Economic Development Queensland describes a submission as a written comment on a development application from a member of the community. In priority development areas, an application is publicly notified if it doesn't comply with aspects of the development scheme or may affect the amenity or development potential of adjoining land, and the notification period is 20 business days (EDQ submission guide). Councils outside priority development areas follow the Planning Act process, so check the notification period and rules that apply to your site. Our step-by-step development application guide walks through where notification sits in the sequence.
Objections are not a vote
The most common fear we hear is "what if the neighbours object?" Other states' planning authorities describe the answer well. The City of Stonnington in Victoria says the planning officer assesses every objection, but the number received does not affect the outcome, and that a consultative meeting may be arranged between applicant, objectors, councillors and the planner (City of Stonnington). That is Victorian practice, but the principle of assessing issues against planning rules is shared across Australia.
Numbers can still change the process in some places. In Newcastle, for example, 25 or more written objections from independent parties, where concerns can't be resolved by conditions, can send a DA to the Development Assessment Committee (City of Newcastle). In NSW, 50 or more public objections to a State significant application bring in the Independent Planning Commission, which weighs the issues raised against legislation and policy and publishes reasons (NSW IPC guidelines). Queensland councils have their own rules, so confirm what applies in your local government area.
The practical lesson is that a submission works when it raises a planning issue, such as a setback, overshadowing, traffic or character. Your application works when it has already answered those issues.
How community impacts differ by project type
The themes below come from our day-to-day experience of residential and commercial applications in South East Queensland. They are a guide to what neighbours commonly raise, not findings from a study.
| Project | What neighbours tend to raise | What a good application addresses |
|---|---|---|
| Subdivision | Lot sizes against the street pattern, new roads and driveways, loss of vegetation, construction disruption | Lot layout that responds to the surrounding pattern, access design, stormwater, retained trees |
| Dual occupancy or duplex | Bulk and height, privacy, parking and street appearance | Setbacks, window and balcony placement, landscaping, parking and bin areas |
| Townhouses | Density, traffic, on-street parking, overlooking, noise from shared driveways | Traffic and parking justification, site layout, screening, acoustic considerations |
| Childcare centre | Drop-off traffic, noise from outdoor play, hours of operation | Traffic assessment, noise measures, hours, queuing on site |
| Health care facility | Parking overflow, patient and staff movements, operating hours | Parking supply, access, hours and site design |
| Granny flat | Privacy, parking, overshadowing | Siting, height, relationship to the main dwelling and boundaries |
Notice that every item is something you can design for. Where an issue can't be fully avoided, the logic of the formal SIA applies in miniature: avoid it first, then mitigate it, and show your reasoning.
Preparing an application that stands up to scrutiny
Start with the site, not the drawings
Most objection problems begin with a design that was drawn before anyone read the planning scheme. A site feasibility assessment before you commit to a purchase or a concept tells you what the zoning, overlays and local plan allow, and where a design is likely to draw a response from council or neighbours.
Walk the street
Spend an hour in the neighbourhood at school drop-off and in the evening. Look at where cars park, how neighbouring houses sit on their lots, which windows face your boundary. This is the informal version of a baseline study, and it often shows up issues that desktop review misses.
Design out the predictable objections
Use the table above as a prompt. Move a balcony, add screening, shift a driveway, set the building back further, keep the large tree. Each change turns a likely submission point into a non-issue.
Explain your design in the planning report
The planning report should address the relevant parts of the planning scheme and explain how the design handles amenity, traffic, character and services. A council officer reading submissions will go back to the report to see whether the concern was anticipated. Where an application relies on judgement rather than a numeric standard, the written reasoning matters as much as the plans.
Talk to neighbours where it helps
Cessnock's guidance is clear that engagement is for understanding impacts rather than winning consent. That framing is useful. A conversation with an adjoining owner can reveal a specific concern, such as a window position, that you can resolve in the design before lodgement. Whether to approach neighbours, and how, is a judgement we make with each client.
Expect to respond to council
Councils often ask for further information. A complete, well-argued application reduces back-and-forth, though no one can promise the outcome or the timing of a decision. The assessment is made by council against the planning scheme, and each site is different.
Choosing a town planner for a sensitive application
When a project is likely to draw community attention, look for a planner who:
- works across the project types you're proposing, whether that is subdivision, dual occupancy, townhouses or commercial uses
- knows your local council's planning scheme and its assessment practice
- starts with site investigations and feasibility rather than only lodgement
- explains the likely risks in plain language before you spend on design
- can coordinate the specialist reports your application needs
Ask them how they would handle the neighbour issues on your particular site. Their answer will tell you how they think.
Our perspective
Most objections we see are not about development in principle. They are about specific things: a window that looks into a backyard, a driveway opposite a school gate, a building that sits much closer to the boundary than its neighbours.
That is why we treat the community side of a project as part of the design brief, not as a hurdle at the end. Our approach is practical and commercially focused. We look at the site and the council requirements first, work out where a proposal is likely to meet resistance, and shape the application so the reasoning is on the page before anyone has to ask.
For our clients, that means fewer surprises and a cleaner path from initial site investigations to lodgement. We can't promise a council's decision, and no honest planner can. What we can do is bring technical precision and strategic foresight to an application so that it is complete, well argued and ready for assessment.
Jwal
Work with a Brisbane town planner
If you're planning a subdivision, dual occupancy, townhouses, a childcare centre or another commercial project in Brisbane or South East Queensland, we can assess your site and map the planning and community issues before you commit to a design. Our team manages applications from initial site investigations through to lodgement, tailored to local council requirements.
See our town planning services or the areas we service, and get in touch through our home page. If you're weighing a split first, our guide to whether you can subdivide your property is a good starting point.
FAQ
Do I need a community impact assessment for a dual occupancy or townhouse development in Queensland?
No formal one in the usual case. Queensland's prescribed social impact assessment applies to projects such as wind farms, larger solar farms and large battery storage facilities (Queensland community benefit page). A dual occupancy or townhouse application is still assessed against the planning scheme, and neighbours may make submissions if it is publicly notified. A town planner can confirm what applies to your site.
Can neighbours stop my development by objecting?
Objections don't operate as a vote. Planning authorities assess the issues raised against planning rules, and Stonnington in Victoria, for example, states that the number of objections does not affect the outcome (City of Stonnington). Some councils do change the decision pathway when objections reach a set number, so check your local government's rules. A design that already answers the likely concerns is your best position.
What is the difference between an environmental and a social impact assessment?
An environmental assessment examines the physical setting, such as land, water and ecology, while a social assessment examines how people experience changes. In NSW guidance, the SIA is one input into the wider environmental impact assessment process (NSW guideline). Both feed the decision-maker's view of a proposal.
When should I think about community impacts in my project?
Before you finalise the design, ideally at the site feasibility stage. South Australian guidance notes that early, ongoing engagement helps identify issues sooner and gives proponents time to respond (MG45). Changing a plan is far cheaper than responding to submissions after lodgement.
Sources
- NSW Social Impact Assessment Guideline, July 2025
- Shire of Narrogin, draft Local Planning Policy D14
- Queensland Social Impact Assessment factsheet
- Queensland community benefit page
- Strong and Sustainable Resource Communities Act 2017
- Queensland community benefit agreements guidance
- Cessnock Council, Guidelines: Social Impact Assessment
- Queensland Social Impact Assessment Guideline, July 2025
- Waverley Social Impact Assessment Guidelines 2022
- SA Department for Energy and Mining, MG45
- Economic Development Queensland, how to make a submission
- City of Stonnington, objecting to a planning application
- City of Newcastle, how DAs are assessed
- NSW Independent Planning Commission, public submission guidelines