Post-Construction Dilapidation Reports: Why They Matter

Post-Construction Dilapidation Reports: Why They Matter

Most developers understand the need for pre-construction dilapidation reports. You document the existing condition of neighbouring properties before you start digging, so you have a baseline if any damage claims arise. That is standard practice and well understood.

What many developers overlook is the post-construction dilapidation report. This is the report prepared after construction is complete, documenting the condition of the same neighbouring properties. It is equally important, and here is why.

Closing the Loop

The pre-construction report establishes the baseline. The post-construction report provides the comparison. Without both, you have an incomplete picture.

If a neighbour raises a damage claim two years after your project is complete, the pre-construction report alone does not tell you whether the alleged damage occurred during your construction works or after. The post-construction report, prepared immediately after your works are complete, provides a clear record of the condition at that point in time.

If the post-construction report shows no change from the pre-construction report, you have strong evidence that your works did not cause any damage. If the neighbour's damage appeared after your post-construction report was prepared, it was clearly not caused by your project.

What to Document

The post-construction report should cover the same scope as the pre-construction report:

• Photographic records of all previously documented areas
• Assessment of any changes from the pre-construction condition
• Documentation of any new cracks, movements, or damage
• Comparison with the pre-construction baseline
• Reference to the construction monitoring data

Timing

The post-construction report should be prepared as soon as practicable after the construction works that affect the neighbouring properties are complete. This typically means after the basement and substructure are finished and the ground has had time to stabilise.

Do not wait until the entire building is complete. The critical period for ground movements is during and immediately after excavation. The post-construction report should capture the condition at this point.

The Cost of Not Doing It

I have seen cases where developers saved a few thousand dollars by skipping the post-construction dilapidation report, only to face damage claims worth tens of thousands or more, with no objective evidence to refute them.

Without the post-construction report, any subsequent damage to the neighbouring property can be attributed to your construction works, whether or not they actually caused it. The burden of proof shifts to you, and without documented evidence, that is a difficult position to be in.

Integration with Monitoring Data

The post-construction dilapidation report should reference the monitoring data collected during construction. If the monitoring showed that ground movements remained within the design predictions and trigger levels, this provides additional evidence that the construction works were managed safely.

At ACSES Engineers, we design the monitoring programme as part of the shoring design package. The monitoring data, combined with the pre and post-construction dilapidation reports, creates a comprehensive record that protects the developer, the builder, and the engineer.

Practical Steps

1. Commission the pre-construction dilapidation report before any excavation begins
2. Implement the monitoring programme during construction
3. Commission the post-construction dilapidation report after the substructure works are complete
4. Store all reports and monitoring data securely for the statutory limitation period
5. Include the post-construction report in your project close-out documentation

The Bottom Line

Post-construction dilapidation reports are cheap insurance. They cost a fraction of what a damage claim costs to defend, and they provide objective evidence that protects everyone involved in the project. Make them a standard part of your project delivery process.