Home CCTV: A Buyer's Guide

Home CCTV has moved from a niche security measure to a standard feature of UK residential properties, driven by falling camera prices, easy smartphone integration and genuine deterrent value. But the market is saturated with products ranging from excellent to useless, and a poorly chosen or illegally installed system can create legal liability rather than security.

This guide covers what to look for when buying, the key technical specifications that matter, wired versus wireless, storage options, UK legal obligations and realistic costs for both DIY and professional installations.

Do You Actually Need CCTV?

CCTV is most useful for:

• Monitoring a front drive, porch or gate where vehicle crime or package theft is a concern
• Providing post-event evidence after an incident
• Deterring opportunistic crime, particularly where the camera is clearly visible and the area is well lit

It is less useful for:

• Properties in dense urban areas where images are too difficult to act on without a high-resolution system
• As a standalone measure, a camera without a quality door lock, alarm or adequate lighting is of limited deterrent value

Wired vs Wireless: The Key Trade-Off

For most homeowners intending to install a permanent system, wired PoE cameras connected to a Network Video Recorder (NVR) give the best combination of reliability, image quality and storage control. Wireless systems are easier to install but can be disabled silently by radio jammers, which are illegal to use but increasingly reported as being used in burglaries.¹

Key Specifications

Resolution

For identifying faces or number plates, you generally need at least 4MP. A 1080p camera covering an area wider than 4 m will struggle to provide usable facial identification.

Night Vision

Most cameras use infrared (IR) LEDs for night vision, producing black and white images. Check the effective IR range, marketing figures are often optimistic. A 20 m IR range in real conditions is typically 12–15 m in suburban environments with ambient light pollution. Full-colour night vision cameras use a strong built-in white-light spotlight, more useful for evidence but can be intrusive for neighbours.

Colour night vision with ambient light (Sony Starvis sensor) produces colour images in low light without a spotlight and is the best option for driveways and paths where colour is useful (clothing colour, car colour) without creating neighbour disputes.

Field of View

A wider field of view (110°–130°) covers more area but reduces the effective resolution per square metre of coverage. For general overview: 90°–110°. For specific zones (gate, front door): 60°–80°, positioned closer.

Weather Rating

Any outdoor camera should be rated IP66 or better (dust-tight, protected against powerful water jets). For particularly exposed locations (coastal, very windy), IP67 (temporary immersion) is better. Most reputable outdoor cameras meet IP66.

Storage Options

Local NVR/DVR storage: footage is stored on a hard drive in a recorder box inside the house. No ongoing subscription. Vulnerable to theft if the recorder is not secured (lock it to a wall in a cupboard). Typically 1–4 TB, storing 7–30 days of footage from 4–16 cameras at full resolution.

Cloud storage: footage is uploaded to the manufacturer’s servers. Survives a break-in where the recorder is stolen. Usually requires a monthly subscription (typically £3–£15 per camera per month) and a reliable broadband connection. Data protection implications, see legal section below.

SD card (in-camera): common in budget wireless cameras. Limited capacity (32–256 GB), typically overwrites after 3–7 days. Vulnerable to camera theft. Fine for short-term monitoring; not suitable as the sole storage for an important installation.

For a permanent residential system, a local NVR with 2 TB storage plus cloud backup of the most-accessed camera views is the recommended approach.

UK Legal Obligations

This is the section most buyers skip and most installation guides understate.

Data protection: if any of your cameras capture images beyond your boundary, such as the pavement, a shared driveway, a neighbouring property’s garden or a public road, data protection law applies and there are rules you must follow.² You do not have to pay the Information Commissioner’s Office (ICO) data protection fee for CCTV used to monitor your own home, even if it captures images beyond your boundary.³

Signage: where your cameras record beyond your boundary, you must put up signs showing that CCTV is in operation.² A weatherproof A4 or A5 sign at each camera location is the standard approach. The ICO publishes free guidance on home CCTV on its website.

Retention: keep footage only as long as you need it and delete it regularly or automatically; many domestic systems simply overwrite after about a month.² Keeping footage longer needs a specific reason, such as an incident you are reporting.

Pointing only at your property: you should make every reasonable effort to aim cameras so they capture only your own land. If a camera also captures a neighbour’s garden or windows, data protection law applies and you must be able to justify the recording, although the ICO notes that the police are unlikely to treat CCTV as harassment without other misconduct by the person.² If a camera must capture some public space, follow the rules above, including signage.

Cost Guide

Professional installation adds cable concealment, correct fixings to masonry, and a properly set-up NVR with scheduled recording and motion alerts. For a permanent system you will rely on for security or insurance purposes, professional installation is worthwhile.

What to Buy

Look for cameras from established brands with good UK support and regular firmware updates. Avoid unbranded systems from unknown sellers, which are more likely to ship with weak security and no update support. Since 29 April 2024, makers of smart products sold in the UK must not use universal default passwords, must tell you how to report security flaws, and must publish the minimum period for which they will provide security updates, so check that period before you buy.⁴ Widely sold brands include Hikvision and Dahua (also sold under many other brand names), Reolink and Eufy. In November 2022 the government told its departments to stop deploying surveillance equipment made by companies subject to China’s National Intelligence Law on sensitive sites; that is a security policy for government sites rather than a rule for homes, but it is worth knowing when choosing a brand.⁵

For the recorder/NVR, ensure it supports ONVIF (an open protocol) so you are not locked into a single camera brand if you want to expand the system later.