For most commercial sites, 30 days is the baseline - retail, loading docks and high-value areas usually need 60-90. Here's how to set retention against real risk, NSW requirements and storage cost.
By Lucas Marendy, Director, Unified Security · NSW Master Licence 000109179 · Updated September 2026
Most commercial CCTV systems ship configured for whatever retention the recorder defaults to - often a fortnight, sometimes a month. That is fine until an incident is only discovered six weeks later and the footage you needed has already been overwritten.
Retention is a planning decision, not a default. Set it against the realistic timeline of how incidents on your site are actually discovered and investigated - and against any retention obligations from insurance, regulators or contracts you operate under. It is one of the first things we set, and document, on every commercial CCTV installation.
Three factors do most of the work in deciding how long your footage needs to live.
Storage planning is where retention decisions get expensive. The trap is sizing for the worst-case combination: maximum resolution, maximum frame rate, every camera, the longest retention - on every camera in the system.
In practice, you size for what each camera actually needs. The till camera might justify 4K at 25fps with 90-day retention; the back-of-house corridor camera does not. Designing per scene rather than per system is what keeps storage proportionate.
By Lucas Marendy, Director, Unified Security · NSW Master Licence 000109179 · Updated September 2026
On industrial yards and self-storage sites across the Hunter, a break-in is often only discovered when a tenant or a stocktake turns it up weeks later. On those sites we size retention to at least 60 days, and push perimeter and entry cameras longer where storage allows. If you have taken over a site and are not sure what it is doing, start with our CCTV audit checklist.
A retention setting is only as good as the recorder it lives on. We document the retention each system is configured for, audit it on scheduled maintenance, and flag when a disk or recorder change has quietly moved the actual retention away from what was specified.
If you do not know what your current retention is - or whether your recorder is actually achieving it - that is the first thing to check.
We'll audit your current CCTV against your operational risk and tell you whether retention matches what you need.
Send through your requirements. We respond within one business day with a project lead and next steps.