The short answer
If your CCTV records identifiable people, you should display a sign. For businesses and organisations that is a clear expectation under UK data protection law, because recording people is processing their personal data and they have a right to be told. For homes it depends on what the camera sees: if it only captures your own property, data protection law does not apply; if it captures beyond your boundary, it does, and a sign is one of the things the ICO asks for.
Businesses and organisations
Shops, offices, warehouses, restaurants, landlords of shared buildings and any other organisation using CCTV to record people are data controllers for that footage. The ICO's CCTV and video surveillance guidance sets out the expectations, and "public awareness and signage" is one of the items on its CCTV self-assessment checklist. In practice that means clear, visible signs that say CCTV is in use, who operates it, why, and how to contact them.
Signage is not the only obligation. Most organisations operating CCTV need to register with the ICO and pay the data protection fee, keep footage secure, delete it when it is no longer needed, and be able to respond if someone asks for footage of themselves. Employers should also make sure staff know about workplace cameras and why they are there. Our CCTV signs for business guide goes into more detail.
Homes
The ICO's guidance on domestic CCTV draws the line at your property boundary. A camera that only sees your own house, garden and drive is outside data protection law. A camera that also captures the street, a shared path or a neighbour's garden brings the law into play, and the ICO's list of things to do includes positioning cameras to capture as little as possible beyond your boundary, being able to explain why you record, and letting people know you are using CCTV, for example by displaying a sign.
Video doorbells and driveway cameras very often see beyond the boundary, so a small sign by the front door or gate is a sensible default for most homes with cameras.
What if I don't display a sign?
For an organisation, missing or inadequate signage is a transparency failure that the ICO can take up, and it weakens your position if someone complains about being recorded. It also removes the deterrent effect, which is the main practical benefit of the sign in the first place. Given that a sign costs nothing to print, there is no good reason to go without one.
What should it say?
At minimum: that CCTV is in operation. Ideally: the purpose, the operator and a contact route. See our complete guide to CCTV signs for wording, sizes and placement, or skip straight to the free sign maker, which builds a compliant-style notice from a few taps.
Common situations
- Landlord with cameras in a shared hallway: you are recording tenants and visitors; display signs at the entrance and in the monitored areas, and tell tenants in writing.
- Small shop with a single camera over the till: display a sign at the door and one near the till.
- Home camera covering the drive and part of the pavement: a sign by the gate or door, and be ready to explain what you record if a neighbour asks.
- Office with cameras in reception only: a sign at the entrance and one in reception; make sure staff are informed.
- Warehouse with external cameras over the yard: signs at the vehicle entrance and pedestrian gates, sized to be read from a vehicle.
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A note from the people behind this guide. Fogaway Security Tools are free resources from the makers of the Fogaway security fog system. CCTV records what happens; Fogaway is built for what happens next, filling a room with dense fog in seconds so intruders cannot see what they came for. If that is interesting, see how it works. If not, the guides and the sign maker are yours to use regardless.
This guide provides general information about CCTV signage in the UK and does not constitute legal advice. Requirements depend on your circumstances; refer to the Information Commissioner's Office for authoritative guidance.