Advice

Building and Extending in the Wye Valley National Landscape

by | Jul 28, 2026

The Wye Valley is one of the most beautiful places to live in the country, and that beauty comes with rules. Whether you are planning an extension, a new build or a larger landscaping project, the protected status of the area shapes what you can do and how you need to go about it.

This guide explains what the designation means for building work, which permitted development rights are removed, and how to give a project the best chance of approval.

A note on scope. The Wye Valley National Landscape crosses the England to Wales border. This guide covers properties on the English side, in Herefordshire and Gloucestershire. Planning legislation, permitted development rights and the Building Regulations system are different in Wales, so if your property is in Monmouthshire the Welsh rules apply and you should confirm the position separately.

What the Wye Valley National Landscape is

The Wye Valley National Landscape is the public-facing name for the area legally designated as the Wye Valley Area of Outstanding Natural Beauty. The name changed in 2023, but the underlying designation and its planning protection remain the same. The rebrand did not weaken or replace the legal status.

The designated area follows the River Wye through parts of Herefordshire, Gloucestershire and Monmouthshire. Its statutory purpose is to conserve and enhance the area’s natural beauty. Because it crosses the England to Wales border, the detailed planning and permitted development rules depend on which side of the border a property sits on. Everything below relates to the English side.

What “designated land” means for permitted development

On designated land, several of the permitted development rights that apply elsewhere are switched off. In England, within the Wye Valley National Landscape, that means:

  • extensions projecting beyond an original side wall are not permitted development and need planning permission;
  • rear extensions of more than one storey are not permitted development;
  • the larger home extension prior approval scheme, which allows deeper single-storey rear extensions elsewhere, is not available;
  • cladding the exterior with stone, artificial stone, pebble dash, render, timber, plastic or tiles is not permitted development;
  • enlarging the roof, including dormers, is not permitted development, although some rooflights and alterations that do not enlarge the roof can remain permitted development where all the relevant conditions are met;
  • outbuildings are subject to additional restrictions: buildings, enclosures, pools and containers more than 20 metres from any wall of the house cannot collectively cover more than 10 square metres, and they cannot normally be placed between a side elevation of the house and the boundary of the property.

The short version is that you should assume you have less freedom than the national permitted development limits suggest, and check before you plan. Some work may remain permitted development, including qualifying single-storey rear extensions within the standard limits. Every relevant limit and condition must still be met, including the requirement for exterior materials to be similar in appearance to those of the existing house.

It is not a no, it is a higher bar

None of this means that extending or building in the Wye Valley is impossible. It means that proposals are assessed carefully against national planning policy, the relevant local development plan and the Wye Valley National Landscape Management Plan.

Scale, form, materials, views, landscape character, lighting and the effect on the setting may all be important. A design that responds clearly to its site is generally better placed than a standard proposal that does not acknowledge the protected landscape, although every application is decided on its individual merits. It is worth noting that the Wye Valley National Landscape team provides landscape advice where appropriate, but it does not decide applications. Those decisions are made by the relevant local planning authority.

Conservation areas and listed buildings often overlap

Some properties in the Wye Valley are also listed, within a conservation area, or subject to both designations. Conservation area status can introduce further controls, and an Article 4 direction may remove additional permitted development rights, so it is worth confirming a property’s status early.

If a building is listed, listed building consent will be required for demolition, alteration or extension that affects its special architectural or historic character. This can include internal as well as external work, and relevant fixtures. Listed building consent is separate from planning permission, and genuinely like-for-like repairs may not need consent, but unauthorised work that does require consent can be a criminal offence. The need for consent should always be confirmed before work begins.

Building Regulations still apply

Whatever the planning position, Building Regulations are a separate matter. Most extensions and new buildings will require Building Regulations approval, covering structure, insulation, drainage, fire and other safety, although some minor alterations and certain exempt buildings may not. As with planning, the Building Regulations system is administered differently in England and Wales, so the side of the border matters here too.

We coordinate the building control application, technical information and inspection stages with the relevant designers, contractors and building control body. For projects in England, the client, designers and contractors retain their own legal responsibilities for planning, managing and monitoring compliance, so appointing us to coordinate the process supports those duties rather than removing them.

How we can help

Building well in a protected landscape is as much about knowing the local planning temperature as it is about construction, and that is exactly where we are on home ground. Through our design and planning service we assess what is realistic for your property at the very start, design with the setting in mind, and coordinate the planning and any listed building consent alongside the right specialists. We have experience working with conservation and planning officers across Herefordshire and Gloucestershire, including Herefordshire Council, the Forest of Dean District Council area that covers much of the Gloucestershire side of the Wye Valley, and Cheltenham Borough Council, and we will give you an honest view of what is likely to be accepted before an application goes in.

If your home is in the Wye Valley or another protected area and you want a clear answer on what is possible, get in touch. We are always happy to talk it through before you commit to anything.

Frequently asked questions

Is the Wye Valley National Landscape the same as an AONB?

Yes. “Wye Valley National Landscape” is the public-facing name for the legally designated Wye Valley Area of Outstanding Natural Beauty. The name changed in 2023, but the legal designation and its planning protection remain the same. Because the area crosses the England to Wales border, the detailed planning rules depend on where the property is located.

Can I extend my house in the Wye Valley National Landscape?

Often yes, but with less freedom than elsewhere. On the English side, side extensions, two-storey rear extensions, dormers and certain cladding are not permitted development here, so they need planning permission, and the larger home extension scheme does not apply. A well-designed extension that responds to its setting stands a better chance, though every application is decided on its individual merits. We assess what is realistic for your property before any drawings are done.

Which permitted development rights are removed on designated land?

On designated land such as a National Landscape in England, side extensions and two-storey rear extensions are not permitted development, the larger home extension scheme does not apply, cladding with stone, artificial stone, pebble dash, render, timber, plastic or tiles is not permitted, and enlarging the roof, including dormers, is not permitted. Outbuildings more than 20 metres from the house are limited to 10 square metres of cover in total. In short, assume you have less freedom than the national limits suggest and check first.

Do I need listed building consent as well as planning permission?

Listed building consent may be needed in addition to planning permission, but the requirements are separate. Consent is required where work would affect the special architectural or historic character of a listed building, including relevant internal work. Some projects need both consents, some need listed building consent only, and some minor like-for-like repairs may need neither. The position should be confirmed before work starts.

Do the same rules apply in the Cotswolds?

Broadly, yes. The Cotswolds National Landscape is also legally designated as an Area of Outstanding Natural Beauty, so the same English restrictions on household permitted development apply. Local planning policies, conservation areas, Article 4 directions and the planning history of the individual property can introduce further controls, so it is still worth taking local advice before you plan.

This guide provides general information about planning and Building Regulations and is not legal or project-specific planning advice. The Wye Valley National Landscape crosses the England to Wales border, where different planning and Building Regulations systems apply. Requirements also depend on the property, its planning history, listed or conservation status and the details of the proposed work. Always confirm the position with the relevant local planning authority and building control body before starting work.

Start your project with Raptor

Whether you are extending, renovating or building new, we will give you straight answers before you commit.

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