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Shed Size & Planning Permission: What You Need to Know

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Embarking on a shed project can be an exciting endeavor, but before you pick up your hammer, measuring tape, or even start selecting a design, it's crucial to understand if you need planning permission. The size of your shed can determine whether you need approval or not, and this guide will help you navigate the UK planning rules.

Sheds are generally considered 'permitted developments', meaning you don't need planning permission. However, there are certain size restrictions and conditions that must be met. Let's dive into the details to ensure you stay within the rules.

Understanding Shed Sizes and Planning Permission

The size of your shed primarily dictates whether you need planning permission. The allowed size varies depending on whether the shed is attached to your house or not.

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In general, outbuildings, including sheds, are considered 'permitted developments', not needing planning permission, as long as they are single storey, less than 4 metres high, and cover less than 50% of the area around the original house.

Sheds Not Attached to Your House

If your shed isn't attached to your house, the rules are a bit more flexible. Here's what you need to know:

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1. The shed must not be more than 4 metres high. 2. The shed must not be more than one storey high. 3. The shed must not be more than half the size of your house (including extensions). 4. The shed must not be placed forward of the principal elevation of the house.

Sheds Attached to Your House

If your shed is attached to your house, the rules tighten a bit. Here's what you need to follow:

1. The shed must not be more than 3 metres high. 2. The shed must not be more than one storey high. 3. The shed must be no higher than your house. 4. The shed must not be placed forward of the principal elevation of your house.

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Additional Rules for Sheds Needing Planning Permission

Even if your shed exceeds the size limits, you might still be able to build it with planning permission. Here are some additional rules:

1. **Listed Buildings**: If your property is listed, even small outbuildings may need planning permission. Always check with your local planning authority.

2. **Conservation Areas**: Sheds in conservation areas may also require planning permission, even if they're within size limits. Again, always check with your local planning authority.

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Waltons Guide To Planning Permission For Sheds
Waltons Guide To Planning Permission For Sheds

When to Apply for Planning Permission

If your shed falls outside the permitted development rules, you'll need to apply for planning permission. You can apply online via the Planning Portal (planningportal.gov.uk) for a reasonable fee.

Remember, seeking professional advice from a planning consultant or architect can ensure you follow all rules and increase your chances of approval.

Building a shed can be a rewarding task, and with these guidelines, you can navigate the planning permission process with confidence. Now that you understand shed sizes and the rules, it's time to grab that measuring tape and start planning your dream shed!