CDC or DA: Which Demolition Approval You Need

Establish the pathway first

Everything in a demolition program hangs off the approval — the disconnections, the contractor booking, the builder's start date. So the first question is not what it costs. It is which pathway your property falls into.

That is settled by a planning certificate for the property, obtained from your council. It shows whether the land is affected by a heritage item, sits within a conservation area, or carries overlays that change what is permissible. It costs very little and it removes the largest unknown from your planning.

The two pathways

Complying development. Where a proposal meets pre-set standards under the state planning framework, it can be approved through a complying development certificate issued by a council or a private accredited certifier. Because it is assessed against fixed criteria rather than on merit, it is generally the faster route.

Development application. Assessed by the council on its merits. Slower, sometimes involving neighbour notification and internal or external referrals, with a timeframe that varies with the complexity of the site.

Neither is better in the abstract. Which one applies is a property question, not a choice.

What takes you out of complying development

The common ones, and all of them are visible on a planning certificate:

• Heritage listing on the property itself.
• A heritage conservation area — significant through the Southern Highlands and present in pockets of Wollongong and Kiama.
• Environmental or coastal overlays, relevant across parts of the Shoalhaven and the coastal strip.
• Flood, bushfire or geotechnical constraints, which apply to escarpment-side properties through the northern suburbs.

Any of these generally pushes the job into a development application, and heritage in particular can make the outcome genuinely uncertain.

The five councils, and why it matters

Our service area covers five separate consent authorities, each with its own controls and processes:

• Wollongong City Council — Helensburgh south to the Shellharbour boundary
• Shellharbour City Council — Shellharbour, Albion Park, Shell Cove
• Kiama Municipal Council — Kiama, Gerringong, Jamberoo
• Wingecarribee Shire Council — the Southern Highlands
• Shoalhaven City Council — Nowra and the Shoalhaven

Advice based on a job in one of these does not transfer to another. If someone tells you "we did one in Dapto and it was fine", that says nothing about Bowral.

What councils commonly ask for

Beyond the approval itself, expect some combination of:

• A waste management plan — what material, separated how, going where
• Evidence of service disconnections for power, gas, water, sewer and telecommunications
• Sediment and erosion control, particularly on sloping sites
• Protection of adjoining property, sometimes with a dilapidation report
• Traffic management where material loads from a public road
• Hazardous materials documentation where asbestos is present

The sentence that belongs on every page like this

Nobody on this site can promise you an approval, or a date for one.

A contractor who works in your area can tell you which pathway your job will probably fall into, what your council usually asks for, and how long similar jobs have recently taken. That is genuinely useful.

What they cannot do is decide it. Councils and accredited certifiers make that call. Anyone telling you otherwise is either mistaken or selling.

Trees are a separate approval

Worth repeating because it catches people every time: an approval to demolish a building does not authorise you to remove trees.

Vegetation and tree preservation controls apply across all five councils and are enforced with substantial penalties. If trees are going, that application runs alongside the demolition one rather than after it. See site clearing.

Asbestos sits outside the planning system entirely

Asbestos obligations are regulatory rather than planning matters, and they apply regardless of which approval pathway your demolition takes. Removal is separately licensed work, waste goes to facilities licensed to receive it, and documentation follows the material.

A CDC does not authorise asbestos removal. Nothing in the planning system does. See asbestos in Illawarra homes.

Who issues what, and why it matters to your timeline

For a complying development certificate you have a choice: the council, or a private accredited certifier. Most people use a private certifier, because you are not queuing behind the council's broader assessment workload and the turnaround is usually faster.

For a development application there is no choice — the council assesses it.

That distinction is worth knowing early, because it is one of the few levers you actually have over the timeline. If your property qualifies for complying development, engaging a private certifier is generally the fastest route to a start date.

What "complying" actually means in practice

The word causes confusion. Complying development does not mean "simple" or "minor". It means the proposal complies with a set of pre-written standards, so it can be certified against those standards rather than assessed on its individual merits.

That has two consequences worth understanding.

First, it is binary. If the proposal meets the standards, the certificate can issue. If it fails one of them, the pathway is unavailable and you go to a development application — there is no partial credit and no negotiating a standard down.

Second, a private accredited certifier can issue it, not only the council. That is often where the speed advantage comes from, because you are not queuing behind the council's assessment workload.

Keep the certificate

Whichever pathway you use, keep the certificate and its conditions with the property records. If you are rebuilding, the certifier for the new work may want to see it, and if you are selling a cleared block, a buyer will.

Where people go wrong with the sequencing

The common error is treating the approval as the first step and everything else as consequent. It is not — the approval is the longest-lead item that everything else waits on, which means the other long-lead items should be running alongside it, not after it.

Specifically: the hazardous materials survey and the service disconnections both take weeks and neither depends on the approval being granted. Start them as soon as the pathway is clear.

Run sequentially, a demolition takes three months. Run in parallel, the same job takes six weeks. Nothing about the work changed — only the ordering.

A realistic sequence

1. Planning certificate — which pathway?
2. Hazardous materials survey if the building is pre-1990
3. Application lodged, with the waste management plan
4. Service disconnections initiated — long lead time, start early
5. Asbestos removal by a licensed removalist, if required
6. Demolish

Four to eight weeks from decision to machines on site is realistic for a straightforward house. Heritage, a DA pathway or a complex asbestos situation extends it.

The approvals page covers the process in more detail. Call 02 4214 4202 with the address and we will tell you what jobs like yours have needed.