Infrastructure Contributions Plan numbers can be a liability or a defence
- Team Forecaz
- Jun 24
- 7 min read
Updated: 7 days ago
A plain-English guide to the Infrastructure Contributions Plan (ICP) challenges faced by councils in Victoria, Australia, and how an AI-powered urban growth modelling platform can give every council the in-house modelling capability that ICP scrutiny now demands.
This article looks at the day-to-day and commercial reality for growth area councils managing infrastructure contributions in Victoria, Australia.
The account of the rules and policy here draws on professional experience, public materials and industry commentary current at the publication date. Nothing here is legal or professional planning advice. Councils should seek their own legal and planning advice on their obligations under the Planning and Environment Act 1987 (Vic), the Ministerial Direction on the Preparation and Content of Infrastructure Contributions Plans, and any relevant Victorian Planning Authority guidance. |
Victorian councils have always faced pressure to produce credible, current growth evidence. The pressure has grown sharper.
The Victorian Housing Statement commits to 800,000 new homes across growth corridors and established areas in the decade to 2034 (Victorian Government).
New Activity Centre planning controls are reshaping established suburbs.
Infrastructure contributions start in January 2027 for the first ten pilot centres and July 2027 for the wider program (Department of Transport and Planning).
In February 2025, Plan for Victoria replaced Plan Melbourne as the state-wide land use plan.
Precinct Structure Plans (PSP), the master plans guiding how greenfield land develops, are being updated faster than before.
Each of the above demands the same thing. Councils need a defensible growth model down to the level of individual land parcels - but most Victorian councils do not own one.
If you work in strategic planning or infrastructure at a Victorian growth area council in Australia, you know this picture:
An Infrastructure Contributions Plan (ICP), is the document that sets out how a council funds local infrastructure from developer charges.
The ICP framework asks more than a count of future dwellings across your Local Government Area (LGA).
In practice, the framework asks you to turn those estimates into numbers that decide how much infrastructure revenue your council collects, when you collect it, and how you account for every dollar.
A growth forecast is a different job.
This article covers three things:
The operational challenge of ICP obligations.
Where the money risk sits for Victorian councils with a weak evidence base.
Why the level of defensibility the current environment demands now sits beyond what older modelling methods sustain year-after-year.
The ICP obligation: what it means in practice
Seven councils make up the Metropolitan Greenfield Growth Areas (MGGA) - Cardinia, Casey, Hume, Melton, Mitchell, Whittlesea, and Wyndham.
Each council runs an ICP system that links infrastructure delivery to the pace of development. Each ICP sets out the works, services, and facilities to fund, the levy structure, the land component, and the split between council and state infrastructure.
All of those specifications come from one source - your growth assumptions.
The Victorian Planning Authority (VPA), the Department of Transport and Planning (DTP), and public Ministerial Direction guidance define what an ICP must contain and how to prepare one.
Your strategic planning team knows this framework. In practice, the framework asks your team to maintain dwelling, population, employment, and Gross Floor Area (GFA) assumptions. Those assumptions must justify the infrastructure works list. They must also hold up when the VPA, the DTP, Panels Victoria, the development industry, and your own audit committee examine them. This is not a theoretical risk. This is the daily reality for every MGGA council running several Precinct Structure Plans at once.
Infrastructure contributions are expanding, not contracting Infrastructure contributions now reach activity centres established across Melbourne. Charges start in January 2027 for the first ten pilot train and tram zone activity centres, and July 2027 for the wider 48-centre program (DTP). The expectation to hold a defensible, current, parcel-level growth model is spreading to a wider group of councils, not only the seven MGGA councils. |
3 places where a weak evidence base becomes expensive
Look at where the money risk sits and the operational challenge gets clearer:
When development does not follow your assumptions
An ICP rests on projections of when development happens and in what order. When reality diverges from those projections, levy revenue arrives later than your capital works program needs. The council covers the gap from other revenue or from borrowings. Mismatches between infrastructure delivery and contribution income are well documented in growth areas. Getting the sequence right is not an accounting exercise. This is a capital planning discipline.
When a developer challenges your charge schedule
A charge schedule built on cautious or thinly evidenced growth assumptions invites challenge. Industry figures and lawyers agree on one point. The strength of the evidence base is your main line of defence when a developer disputes infrastructure charges. Challenges cost money and time to defend. The reputational damage from assumptions tested in public runs deep. A Machine Learning generated, parcel-level growth model built on evidence-base data, with auditable, version-controlled inputs holds up far better than a consultant spreadsheet produced during one ICP exercise and left untouched since.
When annual reporting needs data you have not kept
Victorian councils with ICP obligations must report annually to the Minister for Planning on revenue collected, transferred, and expended, and on works in kind accepted, by ICP area and by project. The Ministerial Direction sets the required reporting format. Forecaz does not track financial transactions such as revenue collection or expenditure. Forecaz builds the traceable, parcel level data foundation and makes this reporting accurate and defensible. Every demand forecast and charge calculation in Forecaz links back to individual parcels and projects. Councils use this data trail to confirm figures before submission. Accurate source data removes guesswork from annual reporting. Councils spend less time reconciling numbers and more time on planning decisions. Data discipline built into Forecaz from the start saves councils from a heavy reporting burden later.
What your evidence base needs to do
Set aside the specific legal requirements, your planning and legal advisers cover those directly. The operational picture for a growth area council holds across every ICP obligation.
The 5 things your evidence base needs to do:
Turn planning scheme zones, PSP density assumptions, and land constraints into forecasts for each parcel. Dwellings, population, employment, and gross floor area. Not high-level LGA totals. Parcel by parcel.
Order those forecasts across set projection years, so the timing of infrastructure demand lines up with a capital works program and the levy revenue behind it.
Convert demographic forecasts into network demand across council-delivered infrastructure (transport, stormwater, and community facilities) and into the demand signals that Water Corporations and the Department of Transport and Planning need for their own planning.
Update as inputs change. PSP amendments, planning scheme changes, Housing Statement density targets, Activity Centre re-zonings, and Planning Permit shifts all change the assumptions. A model that takes months to rebuild after each policy shift is not a model. It is a periodic study.
Stay auditable. Version-controlled inputs and outputs need to trace a clear line from your growth assumptions to your ICP schedule to your annual report to the Minister.
Why traditional approaches struggle with this
Here is the honest assessment. Most Victorian growth area councils have met these obligations with a mix of state government projections, outside consultants, and internal effort tied to each ICP preparation cycle rather than sustained between cycles.
This approach may provide a defensible snapshot when an ICP is gazetted, but it does not create a living model your team can query when a PSP changes, a major development application arrives, or a works-in-kind offer is on the table.
The problem is not skill or effort. The problem is structural.
Traditional modelling tools tend to need data science expertise to set up and run. They rely on outside datasets that need constant upkeep. They take many staff-months to produce each refresh. For MGGA councils running several PSPs at once, and now for councils facing Housing Statement and Activity Centre obligations, a truly current evidence base demands more modelling work than a periodic consultant engagement sustains.
What in-house capability changes
Owning a growth model differs from commissioning one. The difference is not mainly cost, though the recurring savings are real. The difference is speed and control.
When your planners run scenarios in hours rather than weeks, the work changes shape.
Test a PSP amendment before the change reaches Panels Victoria.
Model a Housing Statement density scenario against existing infrastructure capacity in the same week the policy lands.
Assess a major development application against cumulative infrastructure demand the same day the application arrives.
Model a works-in-kind offer against the cash alternative before drafting the council report.
Build a grant submission on current evidence rather than figures stretched from a study done two years ago.
Each capability carries a direct dollar value for a high-growth council. Take ICP revenue accuracy alone. Even a modest lift in the defensibility of charge schedules across a single ICP area returns many times the annual cost of the tool behind the work.
Forecaz VIC: configured for Victorian councils
Forecaz VIC is an urban growth modelling platform set up for Victorian councils.
The platform arrives pre-loaded with:
Precinct Structure Plans
Victorian Planning Authority growth projections
Planning scheme settings, and
Land use data for your LGA.
Council planners run real scenarios within weeks. No data scientists, no long onboarding, and no rebuilding assumptions from scratch each time policy shifts.
Forecaz VIC uses AI-powered Bayesian Network modelling
The model assigns a development propensity to every land parcel, based on proximity to infrastructure, development yield, current land use, and local constraints. Growth follows realistic paths across projection years you define.
The Forecaz VIC platform produces parcel-level forecasts for:
dwellings
population
gross floor area, and
employment.
The platform also produces unlimited scenario comparisons that can spatially viewed in the map explorer.
When Councils load their own development permits into the model, each council instance gains a near-term pipeline view no public dataset offers on its own.
Forecaz appears on the MAV AI Procurement Register
Every vendor on the Municipal Association of Victoria's (MAV) AI Procurement Register meets the AI Vendor Evaluation Criteria, covering ethics, governance, data security, regulatory compliance, and implementation support.
To discuss the procurement path for your council contact Annette Henry.
Arrange a discovery session today
Discover how quickly Forecaz VIC can be configured for your LGA
Call Annette Henry (0418 123 133), Bradley Rasmussen (0419 738 378) or book below:
Next in the seriesArticle 2 in this series (due out soon) will cover the full return-on-investment case for a platform such as Forecaz VIC. It sets out the specific ways weak growth assumptions cost Victorian councils money across five concrete dimensions, and how in-house modelling changes the maths. The lead example is Toowoomba Regional Council, whose planning and infrastructure challenges map directly onto Victoria's regional cities. |
Legal Disclaimer:
This article covers the operational and commercial context for Victorian growth area councils, drawing on publicly available information. This article is not legal or planning advice. This article does not describe the specific legal obligations of any council under the Planning and Environment Act 1987 (Vic) or associated Ministerial Directions. Councils should seek their own legal and planning advice on their obligations. Forecaz recommends councils review all relevant guidance from the Department of Transport and Planning and the Victorian Planning Authority.