Home Security for Detached Houses: What You Need and Where to Put It

Detached houses have a security profile that is fundamentally different from flats and terraced homes. More entry points, a larger perimeter, less natural surveillance from neighbours, and often larger garden areas all mean a more comprehensive security approach is needed. This guide covers exactly what a detached property needs.

The Detached House Security Challenge

Unlike terraced or semi-detached homes, a detached property has four exposed walls and often a full garden perimeter. Side passages connecting front and back are a known vulnerability — they provide concealed access to the rear of the property without being visible from the street. Any comprehensive security plan for a detached house must cover these side approaches explicitly.

Camera Coverage Plan

A typical 3-4 bedroom detached house needs at minimum: one video doorbell covering the front approach, one outdoor camera on the driveway covering vehicle and approach activity, one camera on the rear garden covering the back door and outbuildings, and one camera or sensor on each side passage. That is 4–5 cameras. For larger properties with long driveways, a floodlight camera at the driveway entrance adds both coverage and deterrence. See our security cameras hub and best outdoor cameras guide.

Alarm System Recommendation

A detached house benefits from a larger alarm kit than the typical 5-piece starter. Ring Alarm 8-piece or SimpliSafe’s larger bundles cover more entry points. At minimum: contact sensors on front door, back door, and accessible ground-floor windows. PIR motion detectors in the main hallway and rear living areas. Outdoor siren box on the front and rear elevations for maximum deterrence. See our Ring Alarm review.

Perimeter Lighting

Motion-sensor lights on all four sides of the property at 2.5–3m height remove the cover of darkness from all approach routes. Battery-powered floodlights require no wiring and can be installed in under an hour. For detached houses, perimeter lighting is often a more cost-effective deterrent than additional cameras in secondary positions.

Further reading: alarm systems guide, video doorbells, garage security guide, top 5 security companies.