The short answer
A front garden fence that runs next to a highway used by vehicles (or its footpath) is normally limited to 1 metre (about 3 feet 3 inches) high without planning permission, under permitted development rules in England. This is half the 2 metre limit that applies to rear and side garden boundaries, and the reason is visibility and road safety — a tall fence by the road can block sightlines for drivers and pedestrians. To build a front fence taller than 1 metre next to a road, you need planning permission. If the front boundary does not adjoin a road, the usual 2 metre limit applies instead.
Front gardens are where the lower fence limit bites hardest, because most front boundaries face the street. Understanding the road-safety logic behind the 1 metre rule makes it much easier to plan a front fence that stays lawful.
Front fence height at a glance
- Next to a road1 metre without permission
- Not next to a road2 metres without permission
- Reason for 1m limitDriver and pedestrian visibility
- Above 1m next to a roadPlanning permission needed
- Corner / junctionVisibility splays may apply
The 1 metre rule for roadside front fences
Permitted development rights let you build many boundary structures without planning permission, but they set a lower ceiling next to roads. Where a fence, wall or gate is adjacent to a highway used by vehicles, or next to the footpath that runs alongside such a highway, the maximum height without permission is 1 metre.
Because most front gardens face the street, this is the limit that usually governs a front fence. A 1 metre front fence, roughly waist height, is what you can put up freely. Anything taller next to the road, including the popular 1.2 metre and 1.8 metre options, takes you outside permitted development and into needing permission.
Why the front limit is lower
The lower roadside limit is about safety, not aesthetics. A tall, solid fence right at the edge of the carriageway or pavement can:
- Obstruct visibility for drivers pulling out of a drive or junction, and for those on the road who need to see pedestrians, particularly children, stepping out.
- Hide approaching traffic from people leaving the property on foot.
- Create blind spots at corners and near junctions, where clear sightlines matter most.
Keeping roadside boundaries low preserves these sightlines. This is also why councils pay particular attention to front fences on corner plots and close to junctions, where a visibility splay (a clear, low-level zone) may be required so that drivers can see along the road.
| Front boundary situation | Max height without permission |
|---|---|
| Fronting a vehicle highway | 1 metre |
| Next to the footpath of such a road | 1 metre |
| Front garden not adjoining a road | 2 metres |
| Corner plot near a junction | 1 metre, plus possible visibility splay |
| Above the limit | Planning permission required |
Permitted height for front garden boundaries in England. Source: Planning Portal permitted development guidance.
How the height is measured at the front
As with any fence, the height is taken from the natural ground level beside the fence to the top of the structure, measured from the higher side where ground levels differ. The whole structure counts: posts, gravel boards, decorative caps and any trellis or topper. A 1 metre fence with a trellis topper exceeds 1 metre and would need permission next to a road.
A common point of confusion is a low wall topped with railings or trellis. The combined height of wall plus topper is what matters, so a 0.6 metre wall with 0.6 metres of railings is a 1.2 metre structure and exceeds the roadside limit. If your front boundary is partly wall and partly fence, measure the total.
Building a taller front fence with permission
If you want more privacy or security at the front than 1 metre allows, you can apply for planning permission for a taller fence. Whether it is granted depends mainly on:
- Highway safety: the council will consult on visibility, especially near junctions and drives.
- The street scene: a tall front fence that is out of character with neighbouring open or low-fronted gardens may be resisted.
- Local policy: some areas actively discourage high front boundaries to keep streets open and overlooked.
Permission is by no means automatic for tall front fences, so it is worth a pre-application enquiry before committing. An alternative that often avoids the issue is a low fence or wall combined with planting set back from the boundary, which can give privacy without breaching the height limit or harming visibility. If you are unsure whether your front boundary even counts as roadside, the council can confirm, and a lawful development certificate can formally settle that a proposed fence needs no permission.
Other front-boundary considerations
Beyond planning height limits, check a few other things before building at the front. Many newer estates have developer covenants that restrict or even prohibit front fences to keep an open frontage, and these are enforceable regardless of planning rules. If your property is listed or in a conservation area, additional consents may apply even for a low front fence. And if you are putting in or widening a vehicle crossover, the highway authority will have its own requirements for visibility at the access. Taking these into account alongside the 1 metre rule ensures your front fence is lawful on every front, not just the planning one.
Frequently asked questions
Why can my back fence be 2m but my front fence only 1m?
Because the front fence usually runs next to a road. Permitted development sets a 1 metre limit for fences adjacent to a highway used by vehicles, for visibility and road safety, while boundaries away from roads can be up to 2 metres. A front garden that does not adjoin a road can also use the 2 metre limit.
Can I put a 6ft fence in my front garden?
Not next to a road without planning permission. A 6ft fence is about 1.8 metres, which exceeds the 1 metre roadside limit, so a 6ft front fence facing a road needs permission. If the front boundary does not adjoin a road, the 2 metre limit applies and a 6ft fence is within it.
Does a low wall with railings on top count toward the height?
Yes. The height limit applies to the whole structure, so a wall plus railings or trellis is measured together. A 0.6 metre wall with 0.6 metres of railings is a 1.2 metre structure, which exceeds the 1 metre roadside limit and would need planning permission.
Sources & further reading
- Planning Portal — fences, gates and garden walls
- GOV.UK — when you need planning permission
- GOV.UK — lawful development certificates
Figures on this page are typical UK ranges drawn from published sources and depend on your specific garden. They are guidance, not a quotation.