Planning Permission for Hedges: What You Need to Know in the UK
Hedges are one of the most popular ways to create boundaries, improve privacy, and add greenery to a property. But many homeowners worry about whether planting a hedge — especially an instant hedge — requires planning permission.
If you’re still deciding which hedge type suits your boundary, height requirements and long-term maintenance expectations, our guide on how to choose the right hedge for your garden explains the key factors to consider before planting.
Here’s what the law actually says and when you need to take action.
Do I Need Planning Permission for an Instant Hedge as a Boundary?
In most cases — no.
You do not need planning permission to plant a hedge, whether it is:
- an instant hedge
- a fast-growing hedge
- a boundary hedge
- a privacy screen
However, there are rules you must follow concerning hedge height and neighbour disputes.
The High Hedges Act (Part of the Anti-Social Behaviour Act 2003)
This is the main legislation affecting hedge height.
It applies to:
- evergreen hedges
- semi-evergreen hedges
- two or more trees/shrubs growing in a line
Key Rule: Maximum Height of 2 Metres
If your hedge exceeds 2 metres in height and causes issues for neighbours — such as blocked light — they may file a complaint with the council.
The council can then order:
- reduction in hedge height
- ongoing maintenance
- removal in extreme cases
When Planning Permission May Be Required
There are certain situations where permission or consultation is needed:
1. If the hedge is on a roadside or highway boundary
Some councils have restrictions on tall vegetation near junctions.
2. If your property is in a conservation area
Some areas restrict the removal or alteration of hedgerows — not usually planting, but worth checking.
3. If your boundary is shared with agricultural land
Hedgerow Regulations may apply.
4. If the hedge replaces an existing fence that required permission
In rare cases, the change may need review.
Neighbour Considerations
Hedges can be a source of disputes. To avoid problems:
- Keep hedges trimmed
- Talk to neighbours before planting tall species
- Avoid planting Leylandii too close to boundaries
- Maintain at a reasonable height
Many councils advise leaving at least 60cm between the hedge and the boundary line.
Do Instant Hedges Count as “Fences”?
No — hedges are considered plants, not structures.
Therefore, height restrictions for fences (2 metres including trellis) do not apply to planting hedges.
However, neighbours may still complain under the High Hedges Act if the hedge becomes problematic.
Summary
You can plant a hedge — including an instant hedge — without planning permission in almost all situations. The responsibility lies in maintaining its height and preventing it from becoming a nuisance.