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Permitted Development - Hip to Gable Loft Conversion

Updated: May 16, 2023



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Permitted Development - Hip to Gable Loft Conversion 2023


A hip to gable loft conversion is a popular way to add extra living space to your home without the need for planning permission. This type of conversion involves altering the sloping side of a house, called the hip, and turning it into a vertical gable end. This provides additional space for a bedroom or bathroom, and can also improve the overall appearance of the property.


One of the main advantages of a hip to gable loft conversion is that it falls under permitted development rights, which means that planning permission is not required as long as certain criteria are met. These include:

  • The property must be a detached or semi-detached house, and not a flat or maisonette.

  • The conversion must not exceed the highest part of the existing roof.

  • The conversion must not extend beyond the plane of the existing roof slope of the principal elevation that fronts the highway.

  • The conversion must not include the addition of a veranda, balcony or raised platform.

It is important to note that even if your property meets these criteria, it's always best to check with us or your local council to confirm that a hip to gable loft conversion is permitted under permitted development rights. This is because certain areas may have additional restrictions or conditions that need to be met.


Another important aspect to consider is the structural integrity of your property. A hip to gable loft conversion can be a complex and involved process, and it's important to ensure that the structure of your property can support the additional weight of the conversion. A professional builder or architect can advise you on this.


In terms of cost, a hip to gable loft conversion can vary depending on the size and complexity of the project. However, it is generally more affordable than a traditional loft conversion as it does not require planning permission.


In conclusion, a hip to gable loft conversion is a great way to add extra living space to your home without the need for planning permission. It's important to ensure that your property meets the criteria for permitted development rights and that the structural integrity of your property can support the additional weight. A professional builder or architect can advise you on this and also provide a cost estimate for the project.



Let PermittedDevelopment.com take care of your loft conversion needs!


We undertake a full measured survey of your existing house to enable us to plan your home reliably and cost effectively. We produce as existing drawings of your property which are required in your Lawful Development Certificate.


Your personal designer will undertake a detailed design brief with you where we will discover exactly what you are looking to achieve from your loft conversion. They will design concepts from your brief and create bespoke architectural drawings tailored to you.


We will provide you with the highest quality floor plans, elevations, and 3D views as seen in our videos. We will also provide rendered images that will give you a full understanding of the possible materials and finishes. You'll be able to see exactly what it will look like in real life before it is built!


You will then work with your personal designer to tailor the concepts and create your perfect design! ​ We understand that this process is difficult and decisions are hard. However, your personal designer will be there to help every step of the way and will draw recommendations from their architectural and local planning experience to make the design process seamless. ​Unlimited drawing revisions will enable you to create your perfect extension.


Once the design has been achieved, we will obtain a Lawful Development Certificate, or if it is required planning permission. You are now ready to build!


Legally, you must ensure that your project complies with building regulations which is a statutory requirement. ​ Our building regulation and structural drawings cover everything from the foundations all the way up to fire regulations, thermal efficiency, and even sound insulation. ​ We have vetted chartered structural engineers, building regulation specialists, party wall surveyors, drainage experts, land surveyors, and all other potential third party specialists that could be required in the signing off of your project. ​ This process will leave you in the best possible position going into the construction phase, providing your builder and your local authority's building inspector with everything they require.


We hope you are as excited to start your project today as we are! Please fill out our Contact Us form below so we can start your project as soon as possible. Or feel free to call us where you can speak to one of our specialists for any information you require.





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