How High Can a Fence Be with Trellis?

Fences and trellises serve both practical and aesthetic purposes in outdoor spaces, providing privacy, security, and enhancing the overall look of a garden. Many homeowners in the UK look to add trellises on top of existing fences to improve privacy without making their gardens feel enclosed. However, before making modifications, it's essential to understand the legal limits on fence height and how adding trellis impacts regulations. Many people ask, how high can a fence be with trellis? Understanding UK planning laws will help homeowners avoid unnecessary issues while improving their outdoor space. Navigating UK planning laws can be confusing as different areas may have different restrictions. In this blog, we’ll cover the key rules surrounding fence height, how trellis additions affect these limits, when planning permission is required, and alternative ways to create a private and stylish outdoor space. We’ll also explore how composite trellises from EnviroBuild can provide a long-lasting and environmentally friendly solution.

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How High Can a Fence Be With Trellis: When is Planning Permission not Required

How High Can a Fence Be With Trellis: When is Planning Permission not Required

Before making any changes to your fence, it's important to be aware of the UK planning laws that regulate fence heights. Generally, fences, walls, and gates are governed by permitted development rights, which allow certain structures to be built or modified without the need for planning permission. However, these rights come with strict height limitations.
How high can a fence be with trellis? According to the UK Government’s Planning Portal, the standard legal limits for fences are:
  • One metre (1m) in height if the fence is next to a public highway used by vehicles, including any footpaths.
  • Two metres (2m) in height from ground level in all other locations.
If you wish to build a fence higher than these limits, planning permission is required. If an existing fence, wall, or gate already exceeds these height limits, its height must not be increased.
how high can a fence be with trellis - brown fence

How High Can a Fence Be with Trellis - Local Council Variations

While these are general guidelines, local councils can have their own regulations, particularly in:
  • Conservation Areas: These are areas where stricter planning controls are in place to preserve the character of the area.
  • Listed Buildings (or where the fence, wall, or gate forms a boundary with a neighbouring listed building or its curtilage): where additional permissions may be required even for minor changes.
  • New Developments: where housing estates may have specific agreements regarding fencing height and style.
  • Planning Restrictions: The right to install or modify fences, walls, or gates must not have been removed by an Article 4 direction or a planning condition. 
Checking with your local council’s planning department before modifying your fence ensures compliance with regulations and prevents potential disputes with neighbours or fines.

How High Can a Fence Be with Trellis - How Does a Trellis Affect Maximum Fence Height

One common question among homeowners is “Does trellis count as fence height?” when determining height restrictions. The answer depends on how the trellis is attached and interpreted by the local planning authority.

How High Can a Fence Be with Trellis: How High Can You Have a Garden Fence With Trellis?

In most cases, a trellis is considered an extension of the fence rather than a separate structure. This means that if your fence is already at the two-metre limit, adding trellis on top technically breaches planning regulations. However, many councils do not strictly enforce this rule if the trellis is open and decorative rather than a solid extension.

How High Can a Fence Be with Trellis: Situations Where a Trellis May Be Exempt

How high can a fence be with trellis? Some councils view trellis differently from solid fencing because it allows light and air to pass through. In some cases, if the trellis is no more than 30cm high, it may be allowed without planning permission. However, this varies by location, and it is always best to check with your local authority before proceeding.
how high can a fence be with trellis - Brown Garden Fence

How High Can a Fence Be With Trellis - Applying for Planning Permission If Needed

If your fence with trellis exceeds two metres, or if you live in a restricted area, you will need planning permission. The process is straightforward and can be completed online through the
Planning Portal
.
Steps to Apply for Planning Permission
  1. Check Local Regulations – Visit your local council website to confirm height restrictions in your area.
  2. Prepare Your Application – You may need to submit details such as fence materials, dimensions, and how the trellis will be installed.
  3. Submit the Application – Applications can be completed via the Planning Portal, which provides guidance on fees and processing times.
If approval is required, councils typically respond within a few weeks. If your application is rejected, you may have the opportunity to
appeal
or modify your plans.

Alternative Ways to Increase Privacy and Security

If adding a trellis exceeds the legal height limit or requires planning permission, there are other ways to enhance the privacy of your space without breaching regulations. ‘How high can a fence be with trellis’ may not be a concern if you use plant-based screening or freestanding panels instead.

Frequently Asked Questions

1. How High Can a Trellis Be?

The height of a trellis depends on whether it is attached to a fence or a freestanding structure. If it is added to an existing fence, the combined height must not exceed two metres without planning permission. If freestanding, it may be subject to fewer restrictions but should still comply with local planning rules.

2. How High Can Trellis Be on Top of a Fence?

If a fence is already at the two-metre legal height limit, adding trellis on top usually requires planning permission. Some councils may allow an additional 30cm without formal permission, but it is always best to check with local authorities.

3. How High Can a Trellis Fence Be in the UK?

A trellis fence, meaning a fence made primarily of trellis panels, typically follows the same two-metre rule. However, because trellis is more open in structure, some councils may allow slight variations, especially if it does not obstruct views or light.
Cream Coloured Fence with Trellis

Choosing the Right Trellis and Fence Combination

When selecting a trellis, it's important to consider durability, look, and ease of maintenance. One of the best choices for modern homeowners is a composite trellis, which offers a longer lifespan than traditional wood while being eco-friendly and stylish.
For those exploring the best options, EnviroBuild offers composite trellises in various styles that comply with regulations while enhancing your garden. So, if you're asking, how high can a fence be with trellis? EnviroBuild’s solutions may be the ideal answer.

EnviroBuild Trellis Designs

EnviroBuild offers four distinct trellis patterns to suit different styles:
  1. Botanic Trellis – Featuring a delicate, nature-inspired pattern, the
    Botanic Trellis
    is perfect for gardens that embrace a soft, organic look. This trellis allows climbing plants to weave through its design, creating a beautiful effect. It’s an excellent choice for those who want a decorative yet functional addition to their fence.
     
  2. Slatted Trellis – Designed for a sleek, contemporary appearance, the
    Slatted Trellis
    features horizontal lines that provide privacy while maintaining an open, airy feel. Its modern aesthetic works well in urban gardens or minimalist outdoor spaces where a clean, structured design is preferred.
     
  3. Forest Trellis – Mimicking the look of natural forest trees, the
    Forest Trellis
    brings a classic and timeless touch to any outdoor space. Ideal for those who love the charm of a nature inspired design but want a low-maintenance, long-lasting alternative, this design blends seamlessly into both rustic and modern gardens.
     
  4. Tangier Trellis – Inspired by Moroccan-style architecture, the
    Tangier Trellis
    features an intricate, decorative design that adds a touch of elegance and character. This pattern is ideal for homeowners looking to introduce a unique, artistic element to their fencing while maintaining partial privacy and light filtration.
Each of these options provides privacy without completely blocking light, making them a great addition to your fencing.

Final Thoughts on How High Can a Fence Be With Trellis

For those still wondering, ‘how high can a fence be with trellis?’ the answer is to check your local planning guidelines. Explore EnviroBuild’s range of fencing and trellis solutions for a long-lasting and stylish garden upgrade. If you have any questions about our fencing or trellis products, contact our expert team at
020 8088 4888
or at
info@envirobuild.com
.