How high can a fence be without planning permission?

Up to 1 metre if adjacent to a highway used by vehicles. Up to 2 metres elsewhere. These are the GPDO maximums.

Do I need planning permission for a garden wall?

Not if the wall is under 2 metres high (or 1 metre adjacent to a highway). Higher walls, or walls in areas with Article 4 Directions, need planning permission.

How much does fencing cost?

Boundary treatment costs in South East England typically range between £950 and £4,700, depending on length and materials. Timber fencing is cheapest, brick walls and metal railings cost significantly more.

Can I replace an existing fence with a taller one?

Yes, provided the replacement stays within the PD height limits (1m by highway, 2m elsewhere). The previous height is not relevant — it's the new height that matters.

Fence, wall or gate in Sevenoaks: Planning Permission Guide

Your guide to fences, walls, and gates in Sevenoaks — height limits, permitted development rules, and costs.

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Fence, wall or gates in Sevenoaks at a glance

78%

approved

£548

application fee

weeks typical

Based on 40 decided applications in Sevenoaks over 12 months (31 granted, 9 refused).

Sevenoaks includes or borders the High Weald, Kent Downs AONBs — properties in or near those areas are on Article 1(5) land where permitted-development rights are restricted. 1,659 listed buildings recorded.

Council planning portal Pre-application advice

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Approval probability, 5 nearest comparables, refusal reasons — for your specific address.

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Recent fence, wall or gate decisions in Sevenoaks

The 5 most recent decided applications. Addresses redacted to postcode area.

Granted

Engineering works comprising erection of retaining wall. Erection of pergola and gazebo with associated hard and soft landscaping works.

TN162026-05-22

Granted

Erection of a 1.8m high fence along the rear (west facing boundary).

TN132026-04-14

Granted

5no. internal layout changes, introduction of 3no. floor vents in external paving, introduction of air conditioning units within joinery …

TN152026-04-13

Granted

Demolition and replacement of garden wall to front of property with new wall with metal railing and brick pier and gate.

DA32026-03-16

Granted

Amendment to 25/00705/HOUSE to alteration to fenestrations, add rooflights. Add steps and retain bay window. New timber gate.

TN142026-03-16

These are borough-wide. See the 5 nearest to your address.

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Permitted Development Rules

Class A (Part 2)Part 2

Gates, fences, walls or other means of enclosure

GPDO 2015, Schedule 2, Part 2, Class A

Fences, walls, and gates are covered by Part 2, Class A of the GPDO. The main consideration is height: up to 1 metre next to a highway, up to 2 metres elsewhere.

Key dimension limits

Max 1m adjacent to highwayMax 2m elsewhere

These are the maximum GPDO limits for a detached house with no constraints. Your actual limits depend on your property type, location, and any planning restrictions.

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Typical Costs in South East England

Boundary treatment costs depend on the length, material, and type — timber fencing is cheapest, brick walls are the most expensive.

Fence, wall or gateSouth East England

Typical total

£950–£4,700

Typically includes

MaterialsInstallationFoundations (for walls)

Typically excludes

Planning application fee

Timber fencing is cheapest. Brick walls and metal railings cost significantly more per metre.

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Which Professionals Do You Need?

Boundary treatments rarely need professional services beyond a competent builder or fencing contractor.

This project is unlikely to need specialist professional services beyond a competent builder.

Architect / designerNot needed

This type of project does not typically require architectural services.

Structural engineerNot needed

Party wall surveyorNot needed

Planning consultantNot needed

This guidance is based on a typical semi-detached house with no special constraints. Listed buildings, conservation areas, and attached properties may require additional professional input.

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Conservation Areas & Listed Buildings

In conservation areas, the same height rules apply, but you should consider materials that are sympathetic to the area character. Some Article 4 Directions restrict boundary treatments.

Conservation areas

Properties in conservation areas often have reduced permitted development rights. Some project types (like side extensions) lose PD rights entirely. An Article 4 Direction can remove additional PD rights.

Listed buildings

Listed buildings (Grade I, II*, or II) have no permitted development rights at all. Any external alteration requires Listed Building Consent in addition to any planning permission. An architect experienced in heritage work is essential.

Check if your property is in a conservation area or has other planning constraints.

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Frequently Asked Questions

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Related guides

Driveway

Porch

GPDO Class D

Outbuilding / garden building

GPDO Class E

All guides