Demolition Approvals NSW DA Vs CDC And Council Approval

NSW has two separate approval pathways for demolition. One runs through your local council. The other runs through a private certifier. Most property owners do not know which one applies to them, and picking the wrong path can add weeks, sometimes months, to a project before a single wall comes down.

This guide explains both pathways clearly. It covers exactly when you need a Development Application (DA), when a Complying Development Certificate (CDC) is available, what contaminated land means for your approval, and what happens if something unexpected turns up during demolition.

Why the Two-Pathway System Confuses Property Owners

People assume demolition is simpler than building. In some ways it is. But the approval side? Not always.

The confusion usually starts here: NSW allows demolition to be approved either by a local council through a Development Application, or by a registered private certifier through a Complying Development Certificate. Both are legitimate. Both result in the same outcome, a legal approval to demolish. But they operate through entirely different systems, with different documents, different timeframes, and different eligibility rules.

And the rules that determine which one applies to your property are not always obvious. They depend on your site’s zoning, heritage status, flood or bushfire classification, lot size, proximity to boundaries, and whether contamination has been recorded against the land. None of that shows up in the address. You have to look it up.

Getting it wrong is not catastrophic, but it is expensive in time. You can spend two weeks preparing a CDC application only to be told the site does not qualify. Then you are starting the DA process from scratch. The information in this guide is designed to help you avoid that.

DA vs CDC: Which Approval Path Applies to Your Demolition

The starting point for every demolition in NSW is the same question: does this site qualify for a CDC, or does it need a DA? Here is how to work that out.

When a CDC is Available

A CDC is available under the State Environmental Planning Policy (Exempt and Complying Development Codes) 2008, referred to as the Codes SEPP, for demolition that meets all of the following criteria:

• The structure being demolished is not a heritage item and is not located within a heritage conservation area.
• The land is not flood prone, or the proposed demolition complies with any applicable flood planning provisions.
• The land is not mapped as bushfire prone under section 10.3 of the Environmental Planning and Assessment Act 1979, unless approval from the Rural Fire Service has been obtained.
• The land is not subject to a notation of contamination under Schedule 2 of the relevant Section 10.7 planning certificate that would require remediation before demolition proceeds.
• The demolition work will be carried out in accordance with Australian Standard AS 2601-2001, The Demolition of Structures.
• The property is not subject to a development control that specifically prohibits complying development on that lot.

All criteria must be met. Not most of them. All of them. One disqualifier and the CDC pathway closes.

When a DA is Mandatory

You will need a DA when any of the following apply:

• The structure is a heritage item or sits within a heritage conservation area.
• The land is in a flood zone and the demolition does not meet flood planning controls.
• The land is mapped as bushfire prone and RFS concurrence has not been obtained.
• The site has recorded contamination that requires investigation or remediation as a condition of approval.
• The local council’s Local Environmental Plan (LEP) includes provisions that override the Codes SEPP for that specific site.
• The proposal involves a variation to development standards that requires merit assessment.

Some council areas in Greater Sydney also have SEPP variations that restrict complying development on specific land classifications, so checking your local LEP is not optional.

How to Check Which Path Applies: Step-by-Step via the NSW Planning Portal

The fastest way to confirm your approval path is through the NSW Planning Portal. Here is how:

1. Go to planningportal.nsw.gov.au and search your property address.
2. Run a property report. This will show zoning, overlays including heritage, flood, and bushfire, and any planning constraints recorded against the land.
3. Cross-reference the overlays against the CDC eligibility criteria listed above.
4. If any disqualifying overlay appears, you are on the DA pathway. If none apply, a CDC may be available.
5. Order a Section 10.7 certificate (covered in detail below) to confirm any contamination notations and get the full picture before lodging anything.

The practical difference in time matters. A CDC through a private certifier can be issued in as little as 20 days, though the mandatory 14-day pre-approval neighbour notification means it cannot be issued any faster than that. A DA through council can take anywhere from 40 to 90 days for a standard application, and realistically longer for complex sites in Sydney’s busier LGAs. Understanding the full picture helps you plan ahead, so review the Sydney knockdown rebuild timeline and process before committing to either pathway.

The CDC Process for Demolition in Detail

Who Issues a Demolition CDC

A CDC is issued by a registered certifier, not by council. Registered certifiers are registered under the Building and Development Certifiers Act 2018 and listed on the NSW Planning Portal certifier register. You can search for one at planningportal.nsw.gov.au. All CDC applications must be lodged digitally through the NSW Planning Portal, which has been mandatory since 1 July 2021.

Documents Required for a Demolition CDC

You will need to submit the following:

• Completed CDC application form via the NSW Planning Portal.
• Current Section 10.7 (Parts 2 and 5) Planning Certificate, which must show the land is eligible for complying development.
• Survey plan showing property boundaries, structures, and setbacks. Must be prepared by a registered surveyor.
• Demolition methodology statement describing how the work will be carried out, in accordance with AS 2601-2001.
• Asbestos survey report for any structure built before 1987. Must be prepared by a licensed asbestos assessor.
• Waste management plan covering how demolition waste and materials will be classified, handled, and disposed of.
• Licensed builder details for the demolition contractor who will carry out the work.

The 20-Day Timeline

Here is what the CDC process typically looks like:

• Days 1 to 3: Application lodged via the NSW Planning Portal. Certifier reviews for completeness and begins the pre-approval notification period. Neighbours within a 20-metre radius are notified and given a minimum 14-day period before approval can be issued.
• Days 4 to 17: Certifier assesses the application against the Codes SEPP criteria. This is an administrative compliance check, not a merits assessment. No community objection can block a CDC on planning grounds.
• Day 20: If compliant, the CDC is issued. This is your permit to demolish. The official benchmark is 20 days from lodgement.
• Pre-commencement: A further minimum 7-day notice to neighbours is required before work begins.

Delays happen when documentation is incomplete at lodgement, when the Section 10.7 certificate raises issues that need addressing, or when the asbestos survey flags material the methodology statement did not account for.

Once issued, the CDC is your operative approval document. It specifies the conditions of demolition, and those conditions must be met before the site is handed back.

The DA Process for Demolition in Detail

Lodgement and What to Include

All DA applications in NSW are lodged digitally through the NSW Planning Portal, just like CDCs. But from there, the process goes to your local council, not a private certifier. You will typically need to include:

• Completed DA application form and applicable lodgement fee.
• Statement of Environmental Effects (SEE) addressing how the demolition responds to relevant planning controls and potential impacts on adjoining land.
• Demolition methodology statement consistent with AS 2601-2001.
• Survey plan of the site.
• Asbestos survey report where applicable.
• Waste management plan.
• Where heritage is involved, a Statement of Heritage Impact prepared by a suitably qualified heritage consultant.
• Where contamination is involved, a Preliminary Site Investigation report (more on this below).

Assessment Pathway and What Triggers Referrals

Once lodged, council assigns an assessing officer and begins its review. This is where the DA differs fundamentally from a CDC. The assessment involves merit review, not just a compliance check. That means the council considers the specific circumstances of the site, not just whether it ticks boxes.

Statutory referrals are triggered when the site has specific overlays. A heritage conservation area triggers referral to council’s heritage officer or, in some cases, the NSW Heritage Office. A flood zone may trigger referral to the relevant floodplain management authority. A bushfire prone site requires consultation with the Rural Fire Service. Each referral adds time.

Public notification is also part of most DAs. Adjoining owners and occupiers are notified and given time to submit submissions. Submissions do not automatically block an approval but they must be considered, and sometimes they slow things down significantly.

Realistic Timeframes and Conditions of Consent

The statutory timeframe for a DA determination is 40 days for straightforward applications and 60 days for applications that require referrals or have had submissions. In practice, complex sites in Greater Sydney often take longer. Six to nine months is not unusual for a DA involving heritage, contamination, or significant community interest.

When a demolition DA is approved, it comes with conditions of consent. Common conditions include:

• Work hours restrictions, typically 7am to 5pm weekdays and 7am to 1pm Saturdays in residential areas.
• Neighbour notification obligations before commencement.
• Erosion and sediment control requirements.
• Requirements to engage a licensed contractor for asbestos removal before general demolition commences.
• Site fencing and hoarding standards.
• Post-demolition site clearance and waste classification requirements.

All conditions must be discharged before work starts or before a construction certificate can be issued for any subsequent build. Some conditions are ongoing throughout demolition. Ignoring them is not a small risk. Stop-work notices are real and they are issued. Budget for potential permit delays and holding costs by reviewing what drives demolition costs in Sydney before your DA is lodged.

Key Documents: Section 10.7 Certificate, Survey, and Asbestos Report

How to Order Your Section 10.7 Planning Certificate

The Section 10.7 Planning Certificate is issued under the Environmental Planning and Assessment Act 1979. It is the foundational document for any demolition project. You order it before you do anything else.

Here is how to get one:

1. Visit planningportal.nsw.gov.au and log in or create an account.
2. Search for your property and navigate to the planning certificate section.
3. Select either a Section 10.7(2) or Section 10.7(2) and (5) certificate. For demolition purposes, order the 10.7(2) and (5) combined.
4. Pay the fee: a Section 10.7(2) costs $53. The combined 10.7(2) and (5) costs $133. These are standard regulated fees under the Environmental Planning and Assessment Regulation 2021.
5. Turnaround is typically 3 to 5 business days through the Planning Portal for participating councils. Urgent processing may be available from some councils for an additional fee.

What Each Notation Means for Demolition

The certificate will list constraints that apply to the land. For a demolition project, these are the ones that matter most:

• Heritage item or heritage conservation area: CDC pathway is closed. DA is required.
• Flood prone land: Check against your local council’s flood planning levels. May close the CDC pathway or impose additional requirements on a DA.
• Bushfire prone land: CDC pathway requires RFS concurrence unless exempt. DA may require integrated development assessment with the RFS.
• Contaminated land notation: Likely closes the CDC pathway. Requires a Preliminary Site Investigation before any approval is granted.
• Acid sulfate soils: May impose specific handling requirements for any soil disturbance during demolition.
• Schedule 2 additional information (10.7(5) only): Contains council-held information not required to be in the base certificate, including any EPA orders, recorded contamination incidents, or development contribution requirements.

Survey Plan and Asbestos Survey Requirements

A survey plan is required for both CDC and DA applications. It must be prepared by a registered surveyor and show property boundaries, the location of all structures, and relevant setbacks. The level of accuracy required is generally 1:200 or better for residential demolition.

For any structure built before 1987, an asbestos survey is required before lodging a demolition approval. This must be conducted by a person holding a SafeWork NSW licence to conduct asbestos assessments. The survey covers both friable and non-friable asbestos containing materials (ACM) in the structure, and the findings must be reflected in the demolition methodology statement. Asbestos removal before general demolition must be carried out by a licensed asbestos removalist under the Work Health and Safety Regulation 2017.

Contaminated Land: When Testing is Required Before Demolition

Contamination does not have to be obvious to affect your demolition approval. It can be recorded against a title from a previous use of the land decades ago. It can also be invisible at surface level but present in the soil. Either way, it changes things.

Specific Trigger Conditions for a Preliminary Site Investigation

A Preliminary Site Investigation (PSI) is required when any of the following conditions exist:

• The site has a history of industrial, commercial, or agricultural use that may have caused soil or groundwater contamination, including former petrol stations, dry cleaners, chemical storage, manufacturing, or waste disposal activities.
• Underground storage tanks (USTs) are recorded on the title or are known or suspected to be present.
• The site has a notation of contaminated land on the Section 10.7 certificate.
• The EPA’s contaminated land database lists the site or an adjacent site as notified under section 60 of the Contaminated Land Management Act 1997 (CLM Act).
• There is a known or suspected history of asbestos fill on the site, which is common in properties subdivided or landscaped prior to the 1990s.
• The council’s DCP or LEP requires a PSI for the proposed land use change that will follow demolition.

The relevant planning framework here is the State Environmental Planning Policy (Resilience and Hazards) 2021 and the Managing Land Contamination: Planning Guidelines issued under the CLM Act, which require contamination to be assessed and, where necessary, remediated before development consent is granted.

What a PSI Involves and How Long It Takes

A Phase 1 PSI is a desktop and site-based assessment. It does not always involve soil sampling. It typically includes:

• A review of publicly available databases including the EPA’s contaminated land record, council records, historical aerial imagery, and heritage of land use records.
• A site inspection to identify any visible areas of environmental concern (AECs), such as staining, discolouration, unusual vegetation die-off, drums, or odours.
• A preliminary conceptual site model (CSM) that identifies likely contaminants of potential concern (CoPC) based on site history and observations.
• A risk classification, typically low, moderate, or high, based on the preliminary findings.

A Phase 1 PSI typically takes two to three weeks to complete. The cost varies but is generally in the range of $2,000 to $6,000 depending on site complexity and the consultant engaged.

If the PSI identifies areas of concern that require further investigation, it will recommend a Phase 2 Detailed Site Investigation (DSI). This involves physical soil and sometimes groundwater sampling. It is more time-consuming and significantly more expensive.

The owner of the property commissions the PSI. The report is submitted to the certifier (for a CDC) or to council (for a DA) as part of the approval documentation. Both the certifier and council must accept the findings before approval can proceed.

You cannot shortcut this. If contamination is identified and a PSI has not been commissioned, the approval will not be granted. For sites with contamination findings, see developer demolition management from approval to handover for how specialists handle each stage.

Unexpected Finds Protocol and the Path to a Clean Site

Sometimes contamination is not flagged before work begins. It shows up mid-demolition. Staining in the soil. Unusual odours. Buried drums. Material that does not match what the site history suggested.

When that happens, there is a specific legal process that applies. It is not optional, and it is not discretionary.

The Legal Obligation Under the CLM Act and POEO Act

Under section 60 of the Contaminated Land Management Act 1997 (NSW), any person whose activities have contaminated land, and any landowner who becomes aware or ought reasonably to be aware that their land has been contaminated, must notify the EPA as soon as practicable after becoming aware of the contamination.

Where the contamination constitutes a pollution incident causing or threatening material harm to the environment, separate obligations apply under section 148 of the Protection of the Environment Operations Act 1997 (POEO Act). Under the POEO Act, notification must be given immediately, without delay, to the EPA, council, and other relevant authorities including SafeWork NSW and Fire and Rescue NSW where applicable.

Work stops. That is the first step. Not eventually, not after a review meeting. The relevant area of work stops immediately upon discovery of unexpected contamination. The site is documented and the environmental consultant or project manager is notified without delay.

The Unexpected Finds Protocol in Practice

A properly prepared demolition project will have an Unexpected Finds Protocol (UFP) in the project documentation before work begins. The UFP outlines exactly what to do when something unexpected is found. It typically requires:

• Immediate cessation of work in the affected area.
• Visual identification and documentation of the find including photographs and location mapping.
• Notification to the environmental consultant and project manager.
• Assessment by the environmental consultant to determine the nature, likely extent, and classification of the material.
• Sampling and laboratory analysis if the material cannot be visually classified.
• EPA notification where the threshold under section 60 of the CLM Act or section 148 of the POEO Act is met.
• Containment of contaminated material on site pending classification and disposal arrangements.

Remediation Action Plan and Validation Report: The Path to Clean Site Status

If investigation confirms significant contamination, a Remediation Action Plan (RAP) is prepared by a qualified environmental consultant. The RAP sets out the remediation strategy, the clean-up objectives, and the validation approach. It must be consistent with the NSW EPA’s contaminated land guidelines and, depending on the severity of contamination, may require review by an EPA-accredited site auditor.

Once remediation works are carried out in accordance with the RAP, a Validation Report is prepared. This document certifies that the remediation has achieved the clean-up criteria specified in the RAP. It is prepared by the environmental consultant and reviewed by the site auditor where auditing is required.

Clean site status is established when the certifier and council accept the Validation Report. At that point, the contamination restriction on the title can be lifted, and the project can proceed through the remaining approval stages.

This process can take weeks or months depending on the type and extent of contamination. It is worth knowing about before you buy or demolish. Not after.

Recent News and Insights: NSW Demolition and Contamination Regulations

The regulatory landscape in NSW has been active over the past 12 months. Here are some developments that are directly relevant to demolition approvals and contaminated land in Greater Sydney and across NSW.