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When does a loft conversion need planning permission

Updated: Mar 7, 2023

Often a question that can hold people back from considering doing a project on their house - does a loft conversion require planning permission?

What to choose? An extension, conservatory, garden room. There's a lot of options out there and they all have different regulations.

Loft conversions are different from, let’s say an extension - due to the fact that you’re not actually building beyond the current parameters of your home.

Right, let’s get down to it. Here's a breakdown of when you would need planning permission for a loft conversion in the UK 👇

Firstly, if you live in a house that is not a listed building or in a conservation area, you may not need planning permission for a loft conversion if:

✅ The volume of the additional roof space created is less than 50 cubic metres in a terraced or semi-detached house or 70 cubic metres in a detached house.

✅ The conversion does not extend beyond the existing roof slope at the front of the house, or the roof plane facing the road, known as the principal elevation.

✅Any dormer windows are no higher than the existing roofline or are set back at least 20cm from the roof's edge.

However, if the proposed loft conversion does not meet the above criteria, you will need to apply for planning permission. It goes without saying this can be a time-consuming and expensive process, but it's essential to ensure that your conversion is legal and complies with local planning regulations.

It also saves any potential issues down the road if you decide to sell your property.

If you live in a listed building or a conservation area, planning permission is likely to be required for any loft conversion, no matter the size or design. In such cases, you will need to seek specialist advice from an architect or planning consultant.

It's worth noting that even if planning permission is not required, you may still need to comply with building regulations. Building regulations ensure that your loft conversion is structurally sound, fire-resistant, and meets energy efficiency requirements.

Let's wrap this up.

In summary, whether you need planning permission for your loft conversion in the UK depends on several factors, including the size, design, and location of your property.

It's important to consult with a professional architect or planning consultant to ensure that your conversion complies with local planning regulations and building regulations.

At Lush Lofts, we take pride in our work and are committed to providing our customers in Wokingham and the surrounding areas with the best possible experience. Contact us today to schedule a consultation and learn more about how we can help bring your vision to life.

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