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Protecting your property’s boundaries

Tips to secure your outdoor space and keep burglars in plain sight.


Most criminals will not target your home if the risk to them of being seen, noticed and getting caught is too great.

To deter intruders getting into your garden, you could:

  • keep hedges or walls at the front of your house under 1m tall, so they do not provide cover for someone to hide
  • install fencing on any back or side boundaries that is at least 1.8m in height – check with your local planning department to find out how high rear and side boundaries can be
  • fit a suitable anti-climb topping to place on top of gates, walls or fences – a bed of small rigid plastic cones is recommended
  • consider fitting a steel bar gate that is at least the same height as your garden fencing if the access to the back of your house is gained via a passage
  • keep side gates locked at all times – open or unlocked gates provide easy access
  • fit an outside motion-activated security light to identify movement and deter intruders – these can come with video cameras which alert your smartphone
  • have a gravel driveway and paths – these are ideal at preventing a silent approach
  • put tools away – as they can be used as a way of breaking into your home

Create a natural defence

Supplement and reinforce garden fences or walls with tall and prickly plants and shrubbery to act as a further deterrent to accessing your property.

The best shrubs to deter burglars are fast-growing, dense, and thorny, creating an impassable, painful barrier for any intruder. To maximise this effect, plant them close to each other.

Consider planting:

  • Berberis (Barberry) – these have small, sharp spines and form a dense, often colourful hedge that is difficult to penetrate
  • Blackthorn or Hawthorn – excellent for boundary hedging due to their sharp, aggressive thorns
  • Gorse – a hardy, prickly shrub with needle-like foliage, often seen on coastland
  • Mahonia (Oregon grape) – tough, spiny-leaved, evergreen shrubs
  • Pyracantha (Firethorn) – fast-growing evergreen with extremely sharp spikes and dense growth, good for training against fences or under windows
  • Shrub roses – they produce thorny stems that form an effective barrier

These prickly plants and shrubs will deter burglars from accessing your property. They can also be used under first-floor windows and around drainpipes to prevent unauthorised access.

Garden offices

If you are thinking of installing a new garden office, ask the manufacturer to put in doors and windows that are tested and certificated to PAS 24:2022.

For more information on crime prevention for garden offices, visit Secured by Design.

Trespassing

Trespassing on private land is usually a civil matter for your local council, rather than a criminal offence, meaning police may not attend unless damage or harassment occurs.


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