Do You Need a Dilapidation Report Before Construction in NSW?

If you are planning construction, excavation or demolition near neighbouring properties in NSW, a dilapidation report is one of the most important steps you can take before work begins. But is it actually required by law, or just recommended?

The short answer: while a dilapidation report is not always a strict legal requirement in NSW, it is strongly recommended — and in many cases effectively required by councils, certifiers, or the terms of development consent. Skipping one can expose you to significant legal and financial risk.

What Is a Dilapidation Report?

A dilapidation report is a formal, detailed record of the existing condition of a neighbouring property or structure before construction begins. It typically includes:

• Detailed written notes describing the condition of the property
• Photographs of existing cracks, damage, or wear
• Observations on driveways, fences, retaining walls, footpaths and gardens
• A timestamp, signature and reference details

The report is prepared before work starts so that there is an objective, evidence-based record of what conditions existed prior to construction. If damage is later alleged, the report protects all parties.

Is a Dilapidation Report Legally Required in NSW?

There is no single piece of NSW legislation that universally mandates dilapidation reports for all construction projects. However, several circumstances make them effectively required:

• Development consent conditions: Many councils in NSW — including those across the Northern Rivers — attach conditions to development consents requiring dilapidation surveys of adjoining properties before work commences.
• Complying Development Certificates (CDCs): Under the State Environmental Planning Policy (Exempt and Complying Development Codes), certifiers may require dilapidation reports where excavation or building work is near a boundary.
• Building Code and engineering requirements: Where excavation exceeds 1.5 metres or occurs close to a boundary, dilapidation reports are commonly required as part of the engineering and approval process.
• Contractual obligations: Many builders and developers are required under contract or insurance terms to obtain dilapidation reports as part of their risk management.

Even when not strictly required, the absence of a dilapidation report creates significant liability. If a neighbour makes a damage claim during or after construction, and no pre-construction condition record exists, it becomes very difficult to prove that damage was pre-existing.

When Should You Get a Dilapidation Report?

A dilapidation report should be commissioned before any of the following activities:

• Excavation or earthworks near neighbouring boundaries
• Demolition of existing structures
• Large residential builds or extensions on tight sites
• Commercial or multi-unit construction in built-up areas
• Significant renovations involving underpinning or structural changes
• Road or infrastructure works near residential properties

The report must be completed before work starts — it cannot be done retrospectively. Once construction is underway, you lose the ability to establish a reliable baseline.

What Does the Process Involve?

Getting a dilapidation report is straightforward when handled by an experienced consultant. The typical process is:

• Engagement: You contact a building consultant or certifier and provide project details, including the address, scope of work, and neighbouring properties to be inspected.
• Neighbour notification: The neighbouring property owner is notified that an inspection will be conducted. This is typically handled by the consultant.
• On-site inspection: The consultant inspects the relevant properties, documenting existing cracks, movement, surface damage and overall condition with photographs and written notes.
• Report preparation: A formal report is compiled, date-stamped and provided to you. This is your evidence baseline.
• Post-construction: Optionally, a follow-up inspection can be conducted after works are completed to confirm whether any new damage occurred.

How Much Does a Dilapidation Report Cost in NSW?

Costs vary depending on the size of the project, the number of neighbouring properties to be inspected, and the location. As a general guide, a dilapidation report for a single neighbouring property in the Northern Rivers region typically starts from a few hundred dollars. For larger sites or multiple adjoining properties, costs will be higher.

Given the potential cost of defending a damage dispute, the cost of a dilapidation report is minimal by comparison. It is also often tax-deductible as a project cost.

Dilapidation Reports in Byron Bay and Northern NSW

East Coast Building Consultants provides professional dilapidation reports across Byron Bay, Ballina, Tweed Heads, Lismore, Lennox Head and the wider Northern Rivers region. Our team has extensive local experience with council requirements across Byron Shire, Ballina Shire, Tweed Shire and Richmond Valley Council areas.

Whether you are a builder, developer, or homeowner, we can help you start your project with a clear, legally defensible record of surrounding property conditions.