This guide covers the planning system in England. It is general information, not legal or planning advice; the relevant London borough is the definitive authority for a particular property and proposal.
The short answer
A new or altered driveway gate in England often falls within permitted development, meaning a separate planning application is not normally required, but only when the proposal stays within the relevant limits and no restriction removes that right.
The main national height test is straightforward. A gate next to a highway used by vehicles, or the footpath of that highway, should not exceed 1 metre from ground level if it is to rely on the usual permitted development rule. Away from that position, the usual limit is 2 metres. If the proposal exceeds the applicable limit, a planning application will normally be needed.
Those measurements are only the starting point. Listed status, a conservation area, an Article 4 direction, a condition attached to an earlier planning permission, and the exact relationship between the boundary and the highway can all change the answer. London properties frequently sit within locally designated areas, so the relevant borough should be checked before the design is fixed or fabrication begins.
The 1 metre and 2 metre height limits
Planning Portal guidance says that a new fence, wall or gate, or an alteration to one, will not normally require a planning application when it does not exceed 1 metre next to a highway used by vehicles or the footpath of such a highway. The corresponding limit elsewhere is 2 metres. Height is measured from ground level, so changes in pavement, driveway or garden level need to be understood rather than assumed.
The 1 metre rule is the one most likely to affect a driveway entrance because the front boundary commonly meets a road or its pavement. It applies to the means of enclosure as a whole, not just the moving leaves considered in isolation. Gate piers, adjoining walling, railings and any increase to an existing boundary should therefore be considered together when the proposal is assessed.
An existing fence, wall or gate that already exceeds the relevant limit may generally be altered, maintained or improved without a planning application provided its height is not increased and the other conditions are satisfied. That does not automatically authorise replacing it with a materially different or higher arrangement in every circumstance, particularly where heritage controls or earlier planning conditions apply.
- Up to 1 metre next to a vehicle highway or the footpath of that highway.
- Up to 2 metres in other positions.
- An existing higher enclosure should not be made higher if relying on the usual rule.
Why the position beside the highway matters
The planning test is about where the gate sits, not whether it is called a driveway gate, pedestrian gate or garden gate. A gate across a vehicle entrance at the front of a property will commonly be next to the highway or its footpath, bringing the 1 metre threshold into consideration. A gate deeper inside the site may fall under the 2 metre threshold instead, but the plan and boundary position need to make that distinction clear.
Planning permission is also separate from practical highway safety. The entrance still needs to work with the pavement, dropped kerb, driveway slope and sight lines. A gate that opens outward across a public footway or stops a vehicle while it is partly in the road can create a problem even if its height is otherwise within a permitted development limit. The opening direction and space available for a vehicle should be resolved early in the design.
Listed buildings and their curtilage
The normal permitted development route does not apply where the site is a listed building or lies within the curtilage of a listed building. Planning Portal guidance also identifies boundaries involving a neighbouring listed building or its curtilage as an exception. Listed building consent may be required separately from planning permission where work affects the character of a listed building or a structure treated as part of it.
Curtilage is not always obvious from the postal address or the position of the main building. It is a planning and heritage question about the relationship between the land, structures and listed building. If listing is relevant, the safest starting point is the local planning authority rather than assuming that a modern wall or a detached gate is outside the designation.
Conservation areas and Article 4 directions
Being in a conservation area does not by itself replace every national height rule with a single London-wide rule. However, additional controls can apply, particularly to demolition, alteration and prominent boundary treatments. The design may also be assessed for how it preserves or enhances the character and appearance of the area.
An Article 4 direction can remove a permitted development right that would otherwise be available. Directions are made locally and can cover particular streets, building types or kinds of work. A planning condition on an earlier permission can have a similar practical effect by restricting gates, walls or other enclosure. Because these controls are property-specific, checking only the proposed height is not enough.
Each London borough publishes its own conservation-area maps, Article 4 information and planning history. Search the property address on the borough planning website and check the decision notices for earlier permissions. If the information is unclear, ask the borough planning team for written advice before ordering the gate.
Replacing or altering an existing gate
Maintenance and like-for-like improvement can be simpler than creating a new or higher enclosure, but “replacement” is not a universal exemption. The proposed height, the boundary position, any listed status and any restriction on permitted development still matter. Keeping the same height is helpful; changing the scale, piers, wall or relationship to the street can make the planning question different from a simple repair.
Black Heath Metalworks fabricates and installs new metalwork rather than offering a repair service. For a replacement project, the useful evidence is a clear photograph of the complete frontage, approximate dimensions, the proposed design and any planning drawing or decision notice already available. Those details allow the new gate to be designed around the property while the owner or their planning adviser confirms the permission position.
What to check before ordering a gate
Planning should be checked before the design is frozen because the answer can affect the height, amount of visual openness, pier arrangement and relationship with an existing wall. It is far easier to design within a confirmed envelope than to revise fabricated metalwork after a planning issue appears.
Start with the Planning Portal national guidance, then check the property on the relevant London borough website. The borough is the local planning authority and holds the planning history, conservation designations and Article 4 directions. If the gate forms part of a wider frontage project, include the walls, railings, piers and access changes in the same check rather than assessing each piece separately.
- Measure the proposed height from the relevant ground level.
- Confirm whether the boundary is next to a highway or its footpath.
- Check the listed-building register and whether curtilage is involved.
- Check conservation-area and Article 4 information for the address.
- Review earlier planning permissions for restrictive conditions.
- Confirm whether other approvals are needed for access, kerbs or building work.
When to seek formal confirmation
Where the answer is uncertain, the local planning authority can give pre-application advice or accept an application for a proposed lawful development certificate. A certificate is a formal decision that the described proposal would be lawful for planning purposes if carried out as specified. It is not the same as planning permission and it does not remove the need to comply with other legal requirements.
The proposal must be described precisely and supported with sufficient plans and evidence. A vague enquiry about “a gate” cannot settle the position of a particular height and layout. A dimensioned elevation, site plan and description of the existing boundary make the question capable of a clear answer.
Planning the design once the limits are known
Once the planning envelope is understood, the gate can be designed for the measured opening, driveway fall, opening direction and architecture of the property. A lower gate does not have to look temporary or generic: proportion, bar spacing, top profile, finish and the relationship with adjoining railings can do more visual work than height alone.
For an initial fabrication conversation, send a photograph taken square-on to the opening, another showing the driveway and pavement, the postcode, approximate width and the height being considered. Include any planning or conservation guidance already received. The project can then be discussed without treating fabrication advice as a substitute for the borough’s planning decision.