DA vs CDC for Demolition in NSW — Which Approval Do You Need?

If you're about to knock down a house in NSW, the first question isn't "how much?" — it's "which approval do I need?" Choosing the wrong path can add three months and several thousand dollars to your project before a single sheet of fibro comes off the roof. This guide, written by a licensed Sydney demolition contractor (NSW Demolition Licence AD214611, Asbestos Class B AD214613), explains the real-world difference between a Development Application (DA) and a Complying Development Certificate (CDC) for demolition — in plain English — and shows you which one your property is likely to need.

CDC vs DA — The Short Version

A CDC (Complying Development Certificate) is a fast-track planning approval. It's issued by a private certifier (not council), it's assessed against a fixed state-wide code (the Codes SEPP), and if you meet every rule in that code you cannot be refused. Typical time: around 20 business days. Typical cost: $800–$2,500.

A DA (Development Application) is the traditional merit-based approval. It's lodged with your local council, assessed against the council's Local Environmental Plan (LEP) and Development Control Plan (DCP), and the council planner can refuse, approve, or approve with conditions. Typical time: 8–16+ weeks. Typical statutory cost: $1,500–$5,000+, plus any specialist reports council asks for.

Side-by-Side Comparison

Feature	CDC	DA
Who issues it	Private certifier	Local council
Legal basis	SEPP (Exempt & Complying Development Codes) 2008	EP&A Act 1979 + council LEP / DCP
Typical cost	$800 – $2,500	$1,500 – $5,000+ (plus reports)
Typical timeframe	~20 business days	8 – 16+ weeks
Can it be refused?	No — if the Code is met	Yes — merit assessment
Neighbour notification	Written notice only (7 days)	Public exhibition + submissions
Appeal rights (applicant)	Limited (certifier decision)	Full Land & Environment Court appeal
Heritage properties	Not available	Required

What is a CDC, Really?

A Complying Development Certificate is NSW's "if you follow the recipe, you get the approval" system. It sits under State Environmental Planning Policy (Exempt and Complying Development Codes) 2008 — usually just called "the Codes SEPP." The relevant chapter for knocking a house down is the Demolition Code, which sets out when demolition can be approved as complying development without going to council.

The private certifier (an accredited building surveyor registered with the NSW Building Commission) checks your property, your plans and your supporting documents against that fixed state checklist. If every box is ticked, they must issue the CDC. If one box is not ticked — a heritage listing, a bushfire overlay, a protected tree, a flood planning area, an environmentally sensitive land clause — the CDC path is closed to you and you drop back to a DA.

Because a CDC is tick-box, it is fast and predictable. It also costs less because there is no council assessment officer involved and no public exhibition period.

What is a DA, Really?

A Development Application is the traditional planning approval. You lodge it through the NSW Planning Portal, it goes to your local council (Blacktown City, City of Parramatta, The Hills Shire, Penrith, Hornsby, Inner West, etc.), and a council planner assesses it on merit under section 4.15 of the Environmental Planning and Assessment Act 1979. They look at your LEP zoning, the DCP controls, heritage impact, environmental impact, submissions from neighbours, and whether the proposed demolition is in the public interest.

DAs are slower, more expensive and come with wider discretion — but they are also the only path available when your property has planning constraints that take it outside the Codes SEPP. For a demolition DA, council will usually require architectural plans, a demolition work plan, a waste management plan, and depending on the site, a Heritage Impact Statement, an arborist report, a bushfire assessment, or a flood study.

When You Can Almost Always Use a CDC

A CDC is nearly always available for straightforward residential knockdowns that look like this:

• Post-1950 construction (not heritage-listed, not identified as a contributory item);
• Single or two-storey dwelling on a standard residential zoned lot (R1, R2, R3, R4);
• Property is not in a Heritage Conservation Area;
• Not bushfire-prone, or bushfire-prone without constraints that trigger a DA pathway;
• Not in a mapped flood planning area with constraints;
• No protected native vegetation, no significant trees requiring removal under the DA process;
• No LEP clause 5.10 (heritage) or 5.21 (flood) issue on the lot;
• Standard access, no public road/footpath encroachment issues.

If your Sydney weatherboard in Blacktown, your 1970s brick-veneer in Castle Hill or your fibro in Penrith ticks these boxes, you are almost certainly a CDC job and should save yourself the time and money.

When You MUST Go the DA Path

These are the common red flags that automatically push you out of the Codes SEPP and into a council DA:

• Heritage item — your property is listed on Schedule 5 of the LEP, or on the State Heritage Register.
• Contributory item — not individually listed, but identified in the DCP as contributing to the character of a precinct.
• Heritage Conservation Area (HCA) — the whole street or precinct is a conservation area, even if your house looks ordinary.
• Bushfire-prone land with constraints — if demolition triggers RFS referral or asset protection zone concerns.
• Flood-prone land — properties within a mapped flood planning area where LEP clause 5.21 applies.
• Environmentally sensitive land — foreshore, coastal, waterway buffer, or ecologically endangered community mapping.
• Protected trees — significant trees that cannot be removed under council's tree preservation controls without a DA.
• Council LEP overrides — some councils (particularly inner-city) have made local provisions that override parts of the Codes SEPP.
• Dual occupancies, boarding houses, commercial, industrial — many of these fall outside the demolition CDC pathway.

Process — CDC Path (Step by Step)

1. Confirm property eligibility (zoning, heritage check, flood/bushfire overlays).
2. Engage a private certifier and demolition contractor; obtain a hazardous materials (asbestos) survey.
3. Prepare documents: demolition plan, waste management plan, asbestos report, service disconnection confirmations.
4. Issue 7-day written notice to adjoining neighbours.
5. Certifier reviews and issues the CDC (typically ~20 business days).
6. Lodge Section 68 Local Government Act application with council (where required).
7. Notify SafeWork NSW 5 business days before demolition starts.
8. Carry out demolition; obtain Occupation / Demolition Certificate at completion.

Process — DA Path (Step by Step)

1. Pre-DA consultation with council planner (recommended for heritage and complex sites).
2. Engage a town planner / heritage consultant / arborist as required.
3. Prepare DA documents: Statement of Environmental Effects, architectural/demolition plans, Heritage Impact Statement, waste management plan, specialist reports.
4. Lodge DA through the NSW Planning Portal; pay statutory council fees.
5. Council public notification / exhibition period (typically 14–28 days).
6. Council assessment, request for additional information, possible referral to Local Planning Panel.
7. Determination — approval (with conditions), refusal, or deferred.
8. Separate Construction Certificate / Section 68 approval, then SafeWork NSW notification and works.

How to Check Your Property's Heritage Status

Before you spend a cent on certifiers or demolition quotes, check these two sources:

1. NSW State Heritage Inventory — hms.heritage.nsw.gov.au. Search by address. If your property returns a listing, you are DA-path.
2. Your council's LEP heritage map — available on the NSW Planning Portal's ePlanning Spatial Viewer or on the council's own planning page. Look for your lot on the Heritage Map and the Heritage Conservation Area overlay. Also check Schedule 5 of the LEP document.

If the property is clean on both searches, you're almost certainly eligible for a CDC. If anything is flagged, assume a DA will be required and plan accordingly.

The Section 68 Trap Nobody Mentions

Here's what catches owners by surprise: a CDC (or even a DA) covers the planning approval to demolish. In many NSW council areas, you also need a separate Section 68 approval under the Local Government Act 1993 for the physical activity of demolition work — covering footpath use, road occupation, waste bin placement, services, and tipping. This is a council-issued permit that sits on top of the planning approval.

Not every council requires it for every demolition, but enough of them do that it's worth asking the question before you book a start date. We handle this step for every Direct Demolition client as part of our pre-start set-up — so you don't get a stop-work order on day one.

Red Flags That Will Push You from CDC to DA

• Pre-1930s construction in an older suburb (Leichhardt, Balmain, Paddington, Glebe, Enmore).
• Any mention of "character," "contributory" or "precinct" in a council planning search.
• Properties adjoining heritage items — sometimes trigger review even if yours isn't listed.
• Mapped bushfire overlay plus vegetation on or near the lot.
• Section 10.7 planning certificate flagging heritage, flood, or environmental constraints.
• Large or protected trees within the demolition footprint or working zone.
• Properties on the LEP Draft Heritage Review list (even if not yet gazetted).

What Direct Demolition Does to Help You Navigate This

Approvals are not our licence — we're a demolition contractor, not a certifier or town planner. But every single week we help Sydney owners work out which path they're on before they waste money on the wrong one. Here's what we do as part of a free site assessment:

• Pull the Section 10.7 and quick heritage check on your property.
• Tell you honestly whether we think you're a CDC job or a DA job.
• Refer you to private certifiers we work with regularly for CDC-eligible jobs.
• Refer you to town planners / heritage consultants for DA-path jobs.
• Coordinate the Section 68 LG Act approval through council.
• Handle the SafeWork NSW notification, service disconnections and asbestos clearance.
• Issue your Demolition Certificate at completion for your builder.

Not sure if you need a DA or a CDC for your demolition? We'll check your property and tell you straight. Free assessment, no obligation. Call 0451 117 275 or request a quote online.

Quick Rules of Thumb

• Post-1950, non-heritage, standard residential zone → CDC, ~20 days, ~$1,500.
• Anything in a Heritage Conservation Area → DA, 3–4+ months, budget $4k+ for approvals and reports.
• Bushfire-prone with constraints or flood-affected → almost always DA.
• Dual occ, boarding house, commercial strip-out plus demo → usually DA.
• Whichever path — check if your council also requires Section 68.

Direct Demolition is a licensed Sydney demolition contractor (NSW Demolition Licence AD214611, Asbestos Class B AD214613). We work across Greater Sydney and we'll help you work out the right approval path before you commit a cent. Contact us or call 0451 117 275.

Frequently Asked Questions

Do I need a DA to demolish a house in NSW?

Not always. Most post-1950 non-heritage single and double residential homes in standard zones can be demolished under a Complying Development Certificate (CDC) issued by a private certifier under State Environmental Planning Policy (Exempt and Complying Development Codes) 2008. You will need a full Development Application (DA) through council if the property is heritage-listed, a contributory item, inside a heritage conservation area, flood-prone, bushfire-constrained, environmentally sensitive, or carries protected trees or an LEP override.

What is the difference between a DA and a CDC for demolition?

A CDC is a fast-track approval issued by a private certifier against pre-set state planning rules, typically in about 20 business days for $800–$2,500. A DA is a merit-based application lodged with your local council, assessed against the LEP and DCP, and typically takes 8–16+ weeks with council fees of $1,500–$5,000+. A CDC cannot be refused if you meet the Code; a DA can be refused or heavily conditioned.

How much does a CDC cost compared to a DA in NSW?

Private certifier fees for a demolition CDC typically range $800–$2,500 depending on complexity. A DA lodged with council typically costs $1,500–$5,000+ in statutory council fees, plus any required reports (heritage impact statement, arborist report, bushfire assessment) which can add $1,500–$6,000 more.

How do I check if my property is heritage listed in NSW?

Search the NSW State Heritage Inventory at hms.heritage.nsw.gov.au and check your local council's LEP heritage map and heritage schedule. If your property is a listed heritage item, a contributory item, or sits inside a heritage conservation area, you must go the DA path and a Heritage Impact Statement will usually be required.

Do I still need Section 68 Local Government Act approval after a CDC?

Often yes. Many NSW councils require a separate Section 68 approval for demolition work regardless of whether your planning approval was a CDC or a DA. Section 68 covers the physical act of demolition — footpath/road use, waste, services, traffic — and is handled through the council. Direct Demolition handles this step for our clients during job set-up.