What is the difference between a DA and a CDC?

A Development Application (DA) is a merit-based assessment lodged with your local council, which weighs your proposal against planning controls and can take weeks to months. A Complying Development Certificate (CDC) is a fast-tracked approval for work that meets pre-set standards, and can be issued by either council or a private certifier — often within days to weeks.

Do I need a DA or a CDC for my renovation?

It depends on the scope of work and whether your proposal meets the relevant complying development standards for your zone and lot. Straightforward internal renovations and modest additions often qualify as complying development, while work that exceeds the standards, affects heritage items, or sits in an environmentally sensitive area usually needs a DA.

Is a CDC faster than a DA?

Generally yes. Because a CDC checks your plans against fixed standards rather than assessing them on merit, it avoids the public notification and discretionary assessment stages of a DA, so it is typically issued far more quickly.

Do these terms apply outside New South Wales?

CDC is a New South Wales term. Other states and territories have equivalent merit-assessed and fast-tracked pathways under different names, and development application is used in several states though the rules differ. Always confirm the approval pathway and terminology that applies in your jurisdiction with your local council or state authority.

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DA vs CDC: which renovation approval do you need?

Two of the most common approval pathways for an Australian renovation are the Development Application (DA) and a fast-tracked certificate. They sound similar, but they work very differently, and choosing the right one shapes your timeline, your cost, and how much certainty you have before work begins. This is a plain-English overview to help you understand the difference and work out which pathway likely applies to you.

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A 'DA' is merit-assessed by council and can take weeks to months
A fast-tracked certificate checks fixed standards and can be issued in days to weeks
Faster certainty is the trade-off for fitting neatly inside the rules
DA and CDC are NSW terms, other states have equivalents, so confirm locally

Fast-track options by state

State	Fast-track option	How it works
NSW	Fast-Tracked Certificate	Assessed by your council or an accredited private certifier against pre-set development standards. No discretionary judgement: if your project complies, it is approved. Days to a few weeks.
VIC	VicSmart	Fast-track planning assessment for simple applications. Projects may qualify where they meet set criteria. 10-day statutory turnaround.
QLD	Accepted Development or Code Assessable	Governed by the Planning Act 2016. Straightforward renovations may fall under Accepted Development, requiring no permit if codes are met. Larger but straightforward projects can use Code Assessable applications, which can be quickly assessed and approved by private certifiers.
WA / SA / ACT	Private Building Surveyor	No unified state-level fast-track certificate in these states and territories. Where your renovation meets all building codes and local planning scheme requirements, an accredited private building surveyor can issue the necessary permits without a full council DA process.

The short version

Development Application

A judgement call

Your council weighs your proposal on its merits against the planning rules for your area, which takes time and can attract conditions or neighbour submissions.

Fast-Tracked Certificate

A tick-box

If your plans meet every relevant standard, an accredited certifier (or your council) can approve them quickly, without that discretionary assessment. Faster certainty is the trade-off for having to fit neatly inside the rules.

Side by side

	Development Application (DA)	Fast-Tracked Certificate
What it is	A merit-based assessment of your proposal against the planning controls that apply to your land.	A check that your proposal meets fixed, pre-set development standards. If it complies, it is approved.
Who assesses it	Your local council (or, on appeal, the relevant planning body).	Your council or an accredited private certifier.
Typical timeframe	Weeks to several months, depending on complexity and notification.	Days to a few weeks, because there is no discretionary assessment.
Best suited to	Larger, complex, heritage-affected, or non-standard proposals.	Straightforward work that fits cleanly within the standards.

Which one applies to your renovation?

As a rule of thumb, the more your project stays within standard residential parameters, the more likely it can go through as complying development:

Often suits a Fast-Track pathway

Internal renovations that do not change the building footprint

Modest additions that meet height, setback, and floor-area standards

Standard decks, carports, or outbuildings within the limits

Lots that are not heritage-listed or environmentally constrained

Usually needs a DA

Work that exceeds the complying-development standards

Heritage items or heritage conservation areas

Flood, bushfire, or other environmentally sensitive land

Anything requiring discretion or a variation to the controls

Renovations that alter a building's footprint or significantly impact the streetscape

Renovating an apartment, unit or townhouse?

Strata / OC / CTS

A DA or fast-tracked certificate covers council planning consent only. If you are in strata, you usually also need owners corporation approval, which is separate and can run alongside it.

In NSW, work falls into three tiers under the Strata Schemes Management Act 2015:

Cosmetic workPainting, and other surface-level work inside your lotNo approval

Minor renovationsNew flooring, kitchen cupboards, or internal wall changes. A by-law may delegate approval to the strata committeeOrdinary resolution, over 50 percent

Major renovationsStructural or waterproofing work, plus a by-law where common property is affectedSpecial resolution, passed unless more than 25% of votes cast are against

Other states use equivalent owners corporation or body corporate regimes. Confirm your by-laws with your owners corporation, body corporate, or strata manager.

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Important notice: This content provides general guidance only and does not constitute legal, financial, structural, or building advice. Requirements, regulations, approval processes, and building standards vary significantly between Australian states and territories and change over time. Verify all requirements with your state authority and engage licensed professionals for all certified works.

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