Complying Development Certificate (CDC) Documents Explained

A Complying Development Certificate (CDC) is a fast-track approval pathway in NSW. Instead of lodging a full Development Application (DA) with council, you can apply for a CDC through a private certifier — but only if your project meets all planning rules.

Just like a DA, you’ll need to prepare the right paperwork. Here’s a breakdown of the common documents required:

Core Documents (Always Required)

Architectural Plans

Drawings showing the full design. Includes site plan, floor plans, elevations, sections, and shadow diagrams.

BASIX Certificate

Confirms the project meets sustainability requirements for energy and water.

Survey Plan

Prepared by a registered surveyor. Shows property boundaries, levels, and existing features.

Stormwater/Drainage Plans

Details how roof water and run-off will be managed. Must comply with council or certifier requirements.

Engineering/Structural Plans

Certifies the building is structurally sound. Prepared by a qualified engineer.

Specifications

Technical details of materials, finishes, and construction methods.

Statement of Environmental Effects (SEE)

Explains how the proposal meets the rules of the State Environmental Planning Policy (SEPP).

Waste Management Plan

Outlines how construction waste will be handled and recycled.

Owner’s Consent

Signed approval from the landowner to apply for the CDC.

Additional Documents (Sometimes Required)

Depending on the site and project, the certifier may also ask for:

• Geotechnical Report – if you’re excavating deeper than 2 metres.

• Flood Report – if the land is flood-affected.

• Bushfire Report (BAL Certificate) – if the property is in a bushfire-prone area.

• Acoustic (Noise) Report – if close to a railway or main road.

• Heritage Impact Assessment – if the site is heritage listed.

• Arborist Report – if works affect protected trees.

• Driveway/Civil Plans – for steep sites or special access requirements.

Why It Matters

A CDC can save months compared to a DA — but only if your documents are right. Missing or incomplete paperwork will delay your approval. Working with an architect, engineer, and certifier ensures you meet all conditions from the start.