Garden rooms are becoming increasingly popular as homeowners seek extra space for offices, studios, or leisure areas. One of the most common questions people ask is whether they need planning permission for a garden room. In this guide, we’ll explore the key factors to consider, from size and location to building regulations, to help you determine if your garden room project requires planning permission.
Table of Contents:
Do You Need Planning Permission for a Garden Room?
In many cases, a garden room can be built under permitted development rights, meaning no formal planning permission is needed. However, there are restrictions based on the size, height, and placement of the garden room. Here are some general rules:
• The garden room must not be in front of the property.
• It should be single-storey.
• The total area covered by garden buildings must not exceed 50% of the land surrounding the house.
If your garden room meets these criteria, you may not need planning permission. However, if you’re unsure, it’s always a good idea to check with your local planning authority.
What Size Garden Room Can You Build Without Planning Permission?
The maximum garden room size without planning permission is limited by both area and height. The garden room cannot cover more than half of the land surrounding the house, and height restrictions apply. The maximum height of a garden room without planning permission is:
• 2.5 metres if within 2 metres of the property boundary.
• 4 metres for a dual-pitched roof.
• 3 metres for any other roof type.
Exceeding these limits will require formal planning permission for garden rooms.
Planning Permission for Garden Offices and Studios
If you’re planning to use your garden room as a home office or studio, you may wonder if different rules apply. Generally, if the structure is used as a garden office or garden studio, the same rules regarding size and height under permitted development apply. However, if you intend to use the space as a separate living area or if it includes plumbing or extensive wiring, you may need additional permissions.
For example, planning permission for a garden office is usually not required as long as it adheres to the general garden room regulations. But if you plan to run a business with employees or clients visiting, you may need to seek further consent.
Building Regulations for Garden Rooms
While planning permission may not always be required, building regulations can still apply to your garden room project. Building regulations for garden rooms focus on safety, structural integrity, and energy efficiency. These regulations are particularly relevant if:
• The garden room is over 15 square metres in area and used for sleeping.
• The structure is over 30 square metres in size.
• You intend to install plumbing or electrical systems.
Even if planning permission isn’t required, you must ensure the garden room meets UK building regulations. Non-compliance could lead to fines or the need for modifications later on.
Planning Consent for Garden Buildings: When is it Needed?
In some cases, your garden room project will require planning consent for garden buildings, especially if:
• Your property is located in a conservation area or listed.
• The garden room is to be used as living accommodation.
• The room will be located in front of the main house.
If your garden room doesn’t meet permitted development guidelines or falls under any of these categories, you will need to apply for planning permission. Failing to do so could result in enforcement action by the council.
A Summary of Garden Room Rules:
Building a garden room can be a straightforward process, especially if it falls under permitted development. However, it’s essential to understand the planning rules for garden rooms and ensure you comply with both planning permission and building regulations.
Here’s a quick checklist to determine if you need planning permission for your garden room:
• Is the garden room over 2.5 metres high if close to the boundary?
• Will it be used for living accommodation?
• Is your property listed or in a conservation area?
• Will it take up more than 50% of your garden space?
If you answered yes to any of these questions, you likely need planning permission for garden rooms.
Whether you’re building a garden office, studio, or leisure room, understanding the rules regarding planning permission and building regulations is crucial. If your garden room falls within permitted development guidelines, you can start your project without seeking planning permission. However, if your plans exceed these guidelines, ensure you obtain the necessary permissions before construction begins.