House demolition permits
in Sydney: 2026 guide

Do you need approval to demolish a house in NSW?

Yes, almost always. Demolishing a house in NSW needs a Development Application (DA) assessed by your council or, where the property and work qualify, a Complying Development Certificate (CDC). Only some minor structures may be exempt. Confirm the pathway first.

For a full house knockdown, establish the approval pathway before work is booked. The address, existing approvals, heritage status and proposed demolition all matter. An approval for the next building does not necessarily settle every requirement for removing the old one.

Ask your council or certifier which pathway applies and whether demolition is covered by an existing approval. The NSW Planning Portal’s knockdown guidance is a useful starting point for this conversation.

DA, CDC and minor works

The three pathways are compared below. Which one applies depends on the property, the structure and the wider proposal, so use the table to frame the question for your council or certifier rather than to answer it.

Development Application (DA)

A DA involves assessment by the consent authority, usually the local council. It may be needed where the proposed demolition does not qualify for complying development. Heritage constraints and the wider development proposal can affect the assessment and documents required.

Complying Development Certificate (CDC)

A council or registered certifier can issue a CDC when the proposal meets the applicable standards. It is not an automatic alternative to a DA: the property and work must qualify. Read the Planning Portal’s Demolition Code guidance and have eligibility checked for your site.

What about a shed, carport or partial removal?

Some minor demolition may be exempt development if it meets the relevant criteria. Do not apply that exception to a full house knockdown or assume a small structure is exempt just because it is small. Check the exempt demolition requirements for the actual work.

Heritage items and heritage conservation areas

If the property is a listed heritage item, or sits within a heritage conservation area under the council’s local environmental plan, the CDC pathway is generally not available for demolishing the house: the Planning Portal’s Demolition Code guidance limits complying demolition in a heritage conservation area to detached structures that could be built under the Housing Code, and heritage items are excluded from complying development altogether. Expect a DA, a heritage impact assessment and a longer assessment. Check the property’s heritage status on the council’s LEP maps or a section 10.7 certificate before assuming a pathway.

Prepare the information for assessment

The assessing council or certifier determines the documents needed. Gather what you already have and confirm the remaining requirements with the team preparing the application.

• Property and planning information: the address, title details, existing approvals and relevant planning information, including a section 10.7 certificate where required.
• Site and survey plans: identify the structures to remove, boundaries, nearby buildings and anything that must remain.
• Demolition and waste plans: explain the proposed work, access, waste handling and relevant protection measures.
• Asbestos information: provide existing reports and arrange assessment of suspected materials before disturbance.
• Contractor details: supply the licence and insurance documentation requested for the application.

Traffic management, heritage information, tree protection or use of public land may need additional documents or separate permissions. A generic checklist cannot establish that an application is complete.

Agree who does what

Gabrael prepares and lodges demolition applications and coordinates with councils or certifiers as part of the agreed project scope. Your written quote should distinguish that coordination from external charges.

1. Confirm the scope: list the buildings and other structures to remove, with the property information needed to assess the pathway.
2. Prepare and lodge: agree who supplies plans, authorises the application and pays each application or assessment fee.
3. Respond to assessment: allow for requests for further information. Submission does not itself authorise demolition.
4. Read the conditions: confirm what must happen before work starts, during demolition and at completion.

Before the crew starts

Check the approval conditions for neighbour notification, working hours, fencing, access, tree protection and waste requirements. Agree who arranges the required notifications and utility disconnections, and confirm they are complete before demolition. Our neighbours guide covers notice and dilapidation reports, the pre-demolition checklist puts every pre-start item in order, and the process guide shows the wider sequence. For a knockdown rebuild, the builder handover guide explains what your builder needs from the cleared site.

Fees and timing belong in the project plan

Application, certifier, survey and other external charges depend on the property and pathway. Some councils may also require a bond relating to public property. Ask for current fees from the relevant authority and make the allowances and payment responsibilities explicit in the quote.

“Permits handled” does not mean every external fee is included. The house demolition cost guide explains the published house categories and how to compare inclusions.

What can delay the application?

Missing plans, unclear demolition scope, a pathway that does not suit the property or a request for further assessment can affect timing. Discuss your building schedule early, but confirm approval and pre-start requirements before treating a demolition date as settled.

Do not start on an assumed approval

Unauthorised work can lead to enforcement action and disruption to the project. If there is uncertainty about an approval or condition, resolve it with the council or certifier before proceeding. A contractor’s availability is not approval to start.

What to bring to the first conversation

Start with the property address, the structures you want removed and any existing approvals or building plans. Tell us about heritage information, trees to retain and access restrictions you already know about. Gabrael can then assess the demolition work and confirm the approval coordination included in your quote.