NSW Dilapidation Surveys: Record Next Door Before Excavation Starts

RECORD NEXT DOOR BEFORE THE DIGNSW condition surveys: scope before site start

The awkward time to ask whether next door's wall was already cracked is after the excavator has started. A dilapidation survey gives the project team a recorded starting point, rather than relying on competing memories.

For a small developer, the acquisition question is not simply whether someone can take photographs. It is whether the proposed works, neighbouring properties and approval conditions have been matched to an adequate survey brief and a realistic site-start program.

A condition baseline, not an engineering solution

A dilapidation report documents the condition observed at an inspection so it can be compared with later observations. That comparison purpose appears in NSW Planning's residential condition template. Think located defects, descriptive notes and photographs, with clear inspection limits—not just a collection of close-ups.

Do not confuse recording condition with designing excavation support or certifying structural safety. SafeWork NSW's excavation code, section 3.5, separately addresses the stability of adjacent structures and competent assessment of excavation below footings. A report does not replace those controls, establish a boundary, guarantee no damage or conclusively determine what caused a later crack.

Read the actual condition before booking

Do not assume a report is mandatory for every NSW project, or adopt a universal survey radius or lead time. NSW Planning's current guidance says its existing best-practice conditions are not mandatory. That does not make a condition imposed on your own approval optional.

Read the complete condition: who prepares the report, which properties it covers, when it must be submitted, who receives copies and whether later inspections are required. Ask the certifier to identify the controlling milestone rather than assuming everything is due immediately before digging.

As a local example only, City of Sydney's condition (49) for 14 Hickson Road specifies structural-engineer reports and photographs, identifies a neighbouring property plus others the engineer identifies, and includes construction-certificate, pre-work and follow-up requirements. Those particulars are not statewide rules.

Before buying: price the neighbouring exposure

Consider a possible purchase where the concept includes excavation beside an older masonry house. Treat this as a due-diligence test, not evidence that damage will occur. Give the proposed excavation depth, construction method, available ground information and neighbouring-building details to the structural engineer.

Ask which properties and elements warrant a baseline and what information is still missing. SafeWork's risk-assessment guidance in section 2.2 considers matters including depth, ground conditions and adjacent structures. A convenient circle on a map is not a substitute for a site-specific assessment.

If that advice could materially change the survey allowance or start date, resolve it before treating the acquisition feasibility as settled.

Give the inspector a usable brief

Use this practical commissioning checklist, adjusted by the appointed professional and any approval condition:

• Identify the coverage: named addresses, buildings, retaining walls, fences, paving and relevant public assets—not an unexplained instruction to inspect 'next door'.
• Define inspection areas: which internal rooms and external elevations are included, and whether further investigation is outside the quoted scope.
• Locate observations: request a consistent defect reference, overview and detail photographs, descriptive notes and measurements where appropriate.
• Make the date meaningful: record inspection dates and the relationship to demolition, excavation or other potentially affecting work.
• Expose limitations: identify locked rooms, concealed surfaces, obstructions and areas that could not be inspected. Unseen does not mean defect-free.
• Plan comparisons: agree any stage or completion inspections, report recipients, original-photo retention and how later observations will be linked to the baseline.

The trap: an incomplete inspection presented as complete

A street photograph cannot establish the condition inside a neighbour's house. If entry is unavailable, record the gap and ask the professional and certifier what is acceptable for the particular condition. Do not quietly remove the inaccessible rooms from the brief and call the report complete.

The report itself grants no access right. The City of Sydney example expressly makes its inspection subject to landowner permission. If legal entry rights become an issue, refer that question to a property lawyer; do not turn a survey booking into an assumed permission to enter.

TPC deal lens: budget the evidence and the dependency

Request an itemised quote covering the agreed properties, inspection areas, reporting, repeat visits and any follow-up comparison. Allow separately for coordination and uncertainty; engineering design or monitoring is not automatically included in a condition-report fee.

Build the program backwards from the relevant submission milestone. Allow for appointments, report preparation and required distribution. Stress-test holding costs if an incomplete inspection needs another visit or the brief expands. A cheaper quote is not a saving if it leaves a critical part of the baseline undocumented.

Key takeaway

You are not expected to solve this yourself. Have a structural engineer or appropriately qualified building consultant assess the survey scope, respecting any mandated qualification. Your job is to recognise the dependency and fund a clear brief before work changes the evidence.

Before committing to the next site, could your team explain what will be recorded, what will remain unobserved and when the baseline must be ready?

Image credit: ANGIE BAONGOC / Unsplash. Illustrative photograph. Source · Licence Cropped and resized from the original; no content retouching.

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