Planning Guide

Can New Fencing Be Installed Where Hedges Have Taken Over the Boundary?

Yes, and it is one of the best ways to recover ground in a small garden. The decision to settle first is whether the hedge stays.

Updated 1 September 2026 Garden Fencing · Hengrove

The Short Answer

Yes. Either cut the hedge back and fence behind or in front of it, or remove the hedge entirely and fence on the cleared line.

Removing it recovers considerably more ground — a mature hedge occupies a metre or more of depth, where a fence takes centimetres. That is the real argument in a compact garden.

How Much Ground You Get Back

The Decision

OptionGround recoveredTrade-off
Cut the hedge back, keep it, no fenceSomeStill needs cutting; no hard boundary
Cut back and fence alongsideSomeOne hedge face becomes hard to reach
Remove the hedge, fence the lineThe mostLoses screening height and wildlife value
Remove and fence with planting in frontMost, then someBest compromise for many gardens
Keep hedge, no changeNoneNo cost either
Fencing alongside a hedge you are keeping has a hidden cost. Once the fence is in, the face of the hedge behind it becomes difficult or impossible to cut — so it grows against the fence, holds moisture on the timber, and shortens the fence's life considerably. If the hedge is staying, either leave a workable gap or accept that the fence will not last as long.

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If You Remove the Hedge

What You Lose

Timing

Swapping a metre of hedge for a fence post is the largest amount of garden most people can recover in a single day.

Before You Decide

This is general guidance rather than legal advice; boundary responsibility comes from your title deeds.

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FAQs

Fencing a Hedged Boundary in Hengrove — FAQs

Can fencing be installed where a hedge has taken over?

Yes. Either cut the hedge back and fence alongside it, or remove the hedge and fence on the cleared line. Removing it recovers considerably more ground.

How much garden do I get back?

A mature hedge occupies a metre or more of depth plus root spread, dry shadow and access space. A fence takes the thickness of a post.

Can I keep the hedge and fence alongside it?

Yes, but the hedge face behind the fence becomes hard to cut, grows against the timber and shortens the fence's life. Leave a workable gap if you can.

What do I lose by removing the hedge?

Height above fence limits, screening from upstairs windows, wildlife value, sound absorption and softness. Planting in front of the new fence recovers some of it.

What does hedge removal involve?

Cutting it down, removing a substantial volume of material, and dealing with stumps and roots by grinding or excavation. The soil along the line will be exhausted.

When should it be done?

Autumn or winter suits hedge removal, and nesting birds are protected from around March to August so the hedge must be checked first.

Will the boundary line be where I expect?

Often not. Once years of growth comes off, the line frequently turns out to be elsewhere — check the title plan and agree it before fixing posts.

Is there already a fence inside the hedge?

Frequently, and usually in poor condition, because a hedge keeps timber permanently damp.

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