Design from a Coverage Plan, Not a Camera Count
The most common CCTV design mistake we see on UAE commercial projects is starting from a target camera count rather than a coverage requirement. Every entry and exit, lobby, parking level, loading bay and perimeter boundary should be mapped against the architectural floor plates first — camera type, lens selection and mounting position follow from that coverage map, not the other way round. This also makes it far easier to defend the design during value-engineering conversations, since every camera on the drawing has a clear coverage justification.
Retention Drives Storage Sizing
Footage retention requirements vary significantly by building type and by client contractual obligations — banks, hospitals and government-adjacent facilities typically expect longer retention than a standard commercial office. Storage sizing (NVR capacity, RAID configuration, cloud backup if used) should be calculated from the confirmed retention period, resolution and frame rate per camera — not assumed from a generic default that may under- or over-provision the system.
Integrating with Access Control
CCTV design shouldn't be scoped in isolation from access control. Cameras at every controlled door provide visual verification alongside the access log, and alarm-triggered PTZ presets (camera automatically slewing to an access-control alarm location) meaningfully improve a security operator's ability to respond. Coordinating these two systems at design stage — rather than each being separately specified and installed — avoids gaps in coverage and duplicated cabling runs.