Hip to Gable Loft Conversion: A Comprehensive Guide

Ideal for detached, semi-detached and end-of-terrace homes, a gable end loft conversion not only adds valuable square footage to your home but can increase its desirability to potential buyers which will significantly boost the value of your home.

By extending the sloping side of your roof to create a vertical “gable wall”, this conversion type creates more living space that was previously unused. This gives you the flexibility to create any room you want, whether it is a bedroom, home office, guest room, or playroom.

If are you looking to unlock new possibilities within your home? Then, a hip to gable loft conversion may be the perfect solution for you.

Our guide covers everything you need to know, from planning permission to hip to gable loft conversion costs, ensuring a smooth and successful transformation. Whether you want an additional bedroom, a home office, or a playroom for the kids, a hip to gable loft conversion offers endless possibilities. So, let’s begin!

A gable end loft conversion is a popular method to expand your living space. However, there are additional benefits that it can offer.

We have compiled a list of all the benefits you can receive from a gable end loft extension:

Depending on your property type, your options to create additional space during the hip to gable loft conversion may be limited. However, there are other types of conversions available that can help you make the most of the available space. 

According to the 2021 census, detached homes comprise 23.2% of all homes in the UK. If you're lucky enough to have this property type, you can choose a double hip-to-gable end loft conversion, which creates two gable ends on your roof, maximising your loft space.

However, most homes in the UK are either semi-detached (31.5%) or terraced (23.2%). With these properties, a double hip conversion is not possible, but you can still add additional features, such as a dormer or mansard conversion, to create more space.

Below, we've outlined these two other types of loft conversions which you can combine with your gable end extension.

A dormer conversion is a box-shaped structure extending from the existing slope of your roof. It's a great way to bring extra head space to your loft. There are many types of dormer extensions that you can choose to pair with your hip to gable loft conversion. The three most common types are a gable dormer, a hipped dormer, and a flat roof dormer.

A gable-fronted dormer, also known as a doghouse dormer, creates a pitched roof at the front of your home with two sloping sides. The conversion creates an aesthetically pleasing triangle shape that blends easily into your home. On the other hand, a hipped dormer is similar to a gable-fronted dormer but has three sloping sides instead of two. 

The flat roof dormer is a box-like structure that typically sits at the rear of the property. Thanks to its flat roof, it provides the most additional space among other types of dormers, which allows for more internal head and floor space. However, due to its unique shape and size, it may not seamlessly blend in with the overall look of your home.

A mansard hip to gable conversion might be a great option if you're looking for a loft conversion that provides ample floor and headspace. This type typically offers more space compared to a dormer conversion. 

With a mansard roof structure, the roof's pitches are removed, and the entire roof is replaced. The roof of a mansard conversion is almost horizontal, with a pitch of 72 degrees, creating a vast amount of space for your loft. 

However, it's important to note that hip to gable mansard conversions require changes to the structure of your home, which means that you'll need planning permission. 

Keep in mind that each type of hip to gable loft conversion has its unique advantages, and the choice will depend on your specific property characteristics and desired outcome.

The average cost for a hip to gable loft conversion ranges from £45,000 to £50,000 for a 3 bedroom household. The final price can vary depending on your specific requirements and needs, such as the size of the property, the materials used, the labour costs, and any additional features you want to add, like a bathroom or built-in storage. 

It is essential to keep these factors in mind when planning and budgeting for your loft conversion project. Whether you want a cost-effective solution or a high-end luxury space, it is to keep track of your finances during the hip to gable loft conversion process.

Knowing the costs involved will help you make informed decisions and stay within your budget throughout the conversion process. Below are the costs you will need to be aware of before beginning your loft conversion. 

We recommend contacting our specialists to obtain loft conversion quotes to help you budget, plan and understand the total costs of a gable end conversion.

It is important to familiarise yourself with the limitations and requirements of your home before starting a hip to gable loft conversion. This will help reduce the likelihood of encountering any issues that may delay or stop the construction process. 

It is recommended to seek advice from a structural engineer and architect for further guidance on hip to gable end conversions. They will be able to help with planning permission requests and determine the limitations of your loft conversion project.

However, it is highly advisable to consult with your local council for professional guidance on the rules and regulations related to this type of conversion, regardless of whether you choose to seek advice from an engineer or architect.

A hip to gable loft conversion falls within permitted planning in the UK . Permitted development rights allow householders to improve and extend their homes without applying for planning permission, according to GOV.UK. 

However, it's important to obtain a formal lawful development certificate to confirm that your conversion is within the permitted planning limits. To do this, you need to submit your hip-to-gable loft conversion plans to your local planning authority.

It's worth noting that certain homes, such as those on protected land, world heritage sites, and conservation areas in the UK, do require planning permission for any type of loft conversion. Additionally, flats and maisonettes also require planning permission. 

If you're unsure whether you need planning permission or not, we suggest getting in touch with an architect to help you navigate the planning process.

Whether you need planning permission or not, we recommend speaking to your local planning authority via your local council to obtain further information on planning permissions for loft conversions.

Despite gable end loft conversion being permitted planning. Planning is only allowed if you follow the regulations below:

All households must comply with building regulations to ensure the health, safety and well-being of everyone involved in and around the loft conversion. Before starting a hip to gable loft conversion, there are several key factors to consider regarding building regulations:

If you have a detached, semi-detached or end-of-terrace home, your home may be a good fit for a gable end conversion. 

To determine whether your home is suitable for a hip to gable loft conversion, there are some key considerations to keep in mind, such as the existing roof structure, availability of loft space, and any planning restrictions that may apply.

Unfortunately, if you live in a mid-terrace house or flat, it is unlikely you will be able to proceed with a hip to gable loft conversion. This is mainly due to the roof structure of these properties, which lack a hipped side. Additionally, these property types have party walls on either side, which makes construction of this loft type impossible.

Don’t worry, though; there are other types of loft conversion that you can choose from that will provide a bright, airy loft that you crave! 

Velux Loft Conversions

Unlike other types of loft conversions, a Velux conversion does not involve any significant alterations to the structure or exteriors of the roof. Instead, the conversion is achieved by simply adding "Velux" windows.

While it does not provide additional space, it adds natural light and ventilation to your attic. If you are on a budget or simply cannot change your roof’s structure, then this loft extension is ideal for you.

Rear Dormer Loft Conversions

This type of loft conversion involves a vertical extension from the roof's slope, creating a protruding "box shape".

This type of conversion can be an excellent solution for you seeking to increase the available living space in your homes. The protruding structure can create a significant amount of additional space, making it a popular choice for those of you needing a larger living area.

Side Dormer Loft Conversions

Similar to a rear dormer, the side dormer loft conversion is a popular method of increasing living space in a house. It involves constructing a dormer on the side of your home, characterised by its flat roof. 

With this conversion, you can add more headroom and floor space to your loft, providing the perfect opportunity to create a beautiful and functional living space in your home.

Mansard Loft Conversions 

Mansard loft conversions are designed with a 72-degree slope, allowing for vertical windows to integrate seamlessly with your home's original architecture.

This type of conversion provides added headspace, making it an effective way to expand your living space. The sleek design enhances the aesthetic appeal of your property while adding value to your investment.