Adding a second storey can completely redefine how a Chatswood home functions, creating the space needed while keeping valuable backyard areas intact. Navigating local council approvals, however, requires care and preparation. Chatswood homeowners are subject to detailed Willoughby Council regulations, and understanding the right approval pathway and paperwork requirements can prevent costly setbacks before construction begins.
Why Permits Matter
Getting permits is not just bureaucracy. They protect the structure of your home, ensure the work meets safety and compliance standards, and safeguard your property’s value. In Chatswood, extensions built without approval can trigger fines, stop-work notices, or even demolition orders. Unauthorised work can also cause insurance problems and lower resale value, since buyers and lenders often request proof that all building work is certified. Having permits in place gives you peace of mind, confirming your new upper level is safe, compliant, and built to last.
Understanding What Requires Approval
Second-storey additions almost always need formal approval from Willoughby Council because they significantly alter a property’s structure and appearance. Depending on the project’s scope, approvals may be granted through one of three main pathways:
Development Application (DA): Required for complex or architecturally detailed projects that modify height, layout, or street appearance. These are assessed by the council and generally take 40 to 90 days.
Complying Development Certificate (CDC): A faster option for smaller additions that fully meet Chatswood and NSW building standards. Private certifiers or councils can often approve these within 20 days.
Construction Certificate (CC): Needed after a DA approval to confirm that the plans meet the Building Code of Australia and engineering requirements before work begins.
Once complete, an Occupation Certificate (OC) confirms the new space meets safety standards and is ready to live in.
Essential Documentation And Compliance Checks
Before construction starts, several key documents must be prepared to confirm the design meets Chatswood’s planning and structural rules:
- Architectural drawings showing precise elevations, materials, and integration between the new and existing levels for accurate assessment.
- Engineering reports verifying load-bearing capacity, foundation strength, and framing compliance with local building codes.
- BASIX certificates proving energy, water, and thermal efficiency meet NSW sustainability benchmarks for residential construction.
- Site and soil assessments identifying ground stability, slope conditions, and effective stormwater drainage design for the property.
- Council compliance documentation confirming boundaries, setbacks, height limits, and heritage or conservation area considerations.
Submitting complete and consistent documents early reduces waiting times and ensures the process runs smoothly from submission to approval.
Streamlining The Process With Local Expertise
Chatswood’s planning controls are detailed and require careful coordination. Working with a licensed builder who manages approvals, submissions, and compliance checks from start to finish makes the process straightforward.
Kelida Homes understands local regulations and works closely with Willoughby Council and private certifiers to ensure every document and inspection meets the required standard. Our team helps anticipate issues, adjust designs to suit council preferences, and keep your project moving
Build upward with confidence by partnering with Kelida Homes, your trusted local expert for second-storey additions and council approvals in Chatswood.


