What’s the Difference Between a CDC and a DA?

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Navigating the planning approvals for your dream home can feel overwhelming. With terms like Complying Development Certificate (CDC) and Development Application (DA) thrown around, it’s important to understand the difference between these two processes.

Both a CDC and DA are pathways to getting approval for your build, but they have different requirements and timelines. Here’s what you need to know to better understand which path your project will follow.

Complying Development Certificate (CDC)

A Complying Development Certificate (CDC) is usually a faster approval process for projects that meet specific planning controls. This pathway doesn’t require council approval and is assessed by a private certifier or an accredited body.

When to Use a CDC:

A CDC is an option for straightforward builds that comply with the guidelines set out by State Environmental Planning Policies (SEPP). It’s ideal for projects such as:

  • New homes that meet all height and setback requirements
  • Extensions or renovations that adhere to planning controls
  • Simple knockdown rebuilds on standard lots

Because the criteria for a CDC are more restrictive, not all projects qualify. However, if your project fits the guidelines, the CDC process can be much faster—often taking just weeks to get approval. This can significantly reduce delays and allow your project to start sooner.

Key Features of a CDC:
  • Assessed by a private certifier or accredited body
  • Faster approval process (typically weeks)
  • Suitable for projects that comply with all planning controls
  • No community consultation required

Development Application (DA)

A Development Application (DA) is a formal process that involves submitting your proposed building plans to your local council for approval. This pathway is typically chosen for more complex builds or when the property doesn’t meet the guidelines for a CDC.

When to Use a DA:

A DA is necessary if your project includes design elements or site features that don’t comply with standard planning regulations. This could include:

  • Building in heritage areas
  • Significant alterations to the height, density, or setbacks of a building
  • Projects on steep or irregular land

Since a DA is reviewed by the local council, it involves a more comprehensive assessment. Your plans will be examined for compliance with local environmental and zoning regulations, and they may be subject to community consultation. The timeline for DA approval can vary but generally takes longer than a CDC, sometimes up to several months.

Key Features of a DA:
  • Council approval is required
  • Suitable for projects that don’t meet CDC requirements
  • May involve community consultation
  • Longer approval process (up to several months)

Which Approval Does Your Project Need?

All construction projects in NSW—whether it’s a new home, renovation, or extension—require either a Development Application (DA) or a Complying Development Certificate (CDC) before construction can begin. These approval pathways ensure that your project meets local planning regulations.

The approval path your project follows—CDC or DA—depends entirely on the specifics of your design and site. If your project meets the strict guidelines for a CDC, it will likely be the faster route. However, if your project involves more complex elements like heritage considerations or significant design variations, it will require a DA for council approval.

At Christou Homes, we guide you through the entire approvals process, whether your project requires a DA or CDC. Our experienced team works closely with councils, private certifiers, and you to ensure your custom home meets all regulations and is approved as quickly as possible.

Ready to Start Building Your Dream Home?

Whether you need a DA or CDC, Christou Homes is here to help you navigate the approval process and create a home that exceeds your expectations. 

Contact us today to learn more about how we can bring your vision to life.

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