Hip to Gable Loft Conversion

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Hipped roofs are most commonly found in semi-detached houses and bungalows. There are also examples of large detached properties boasting a hip to gable roof conversion, but this is less common.

The structure of the hip to gable roof conversion was an efficient design used by housebuilders after the second world war. Typical A-frame roofs will have a flat ridge line to a gable end, which uses more materials and was just wasted space. Fortunately, the construction of a hip to gable roof conversion lends itself well to a loft conversion.

A hip-to-gable loft conversion will extend your ridge up to a newly built gable. At this stage, your roof structure will look like an A-frame. It is possible to incorporate a dormer into the structure. Hip-to-gable loft conversions offer a lot of benefits, but the scheme of work is relatively intense.

This is because the old roof and structure needs to be cleared so that rafters will need to be reinforced and there is also likely to be a steel ridge beam. The calculations for a hip-to-dormer loft conversion should be done by a qualified structural engineer.

loft extension

How Much Will A Hip And Gable Loft Conversion Cost?

As with any loft conversion, there is no hard and fast rule for calculating the costs of a project. There are so many aspects that can affect a design, and the work that needs to be done to convert a loft. The cost of a conversion of this nature can start from £40,000, but can be anywhere above that figure depending on your requirements. As mentioned, there are specialist materials and skills required to convert a roof structure. Everything needs to be done by professionals to ensure it passes building control. Be wary of quotes that seem too good to be true and always choose an experienced company.

The main thing to consider is the cost of materials and labour, as these will be greater for a hip-to-gable loft conversion than they would be if your property already has an A-frame roof. As mentioned, there are specialist materials and skills required to convert a roof structure. Everything needs to be done by professionals to ensure it passes building control. 

What Permissions Are Needed For A Hip To Gable Loft Conversion 

Hip-to-gable loft conversions are a great option because can create a great deal of additional usable space, especially if the design is done by a professional company like Clapham Construction. However, there are many considerations to be made when it comes to a hip-to-gable loft conversion. 

You will need to make sure you have all of the permissions and agreements in place. For example, it is necessary to have enough headroom in the loft space and there also needs to be an area on the floor below that can accommodate a staircase.  You will also need to engage a qualified structural engineer and ensure that all works comply with building regulations. 

If you would like to book a consultation we can provide you with a free, no-obligation quotation.

Hip To Gable Attic Conversion Interiors

What sort of finish would you like in your new loft conversion? A hip-to-gable can add a lot of extra space, which will mean greater fixtures and finishing costs because there is simply more space to fill. Furthermore, if you are adding an upstairs or en suite bathroom then you will also need to include the cost of bathroom suites and plumbing into the build cost too.

Of course, all of this can be taken care of by a professional company like Clapham Construction. However, you will also want to furnish the space once the builders have left. Talking through your ideas and plans with a professional will give you inspiration and help get the most out of your new space once it is finished. 

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Testimonials

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Andy Brown profile picture
Andy Brown
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From the initial meeting to the final finishing touch, Paul, Dangis and their team were great! We knew exactly what to expect each week, we had lots of photos and drone videos of work happening when we couldn’t see. They were full of advice and suggestions when we couldn’t visualise the end result. They left our home as clean and as tidy as they possibly could (we were living in the house as they were working around us). We are really pleased with the end result and with the building experience! Great time, fantastic work ethic and brilliant result!
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Rebecca Barrett profile picture
Rebecca Barrett
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We can’t thank Paul, Dangis, and the team, enough for their hard work on our house. The house is everything we had imagined and more. We increased our scope multiple times throughout the process, and the team helped us seamlessly, and were always there to answer questions and support our plans. We only have good things to say about Clapham Construction, and will definitely be recommending them to all our friends and family. Thanks again!
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Helen Stevens profile picture
Helen Stevens
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I cannot speak highly enough of Clapham Construction. Paul and Dangis were a dream to work with from start to finish. Everything was communicated so well and they provided honest, transparent and clear advice throughout; I felt supported and guided through all the decisions and they helped me make more bespoke decisions such as our windows and floor which weren’t necessarily easy! Everyone who came to work on the loft was excellent and it has all been completed to a high standard. The loft is beautiful and we just can’t believe how much space we have and how well done everything is. I would (and have!) recommend to anyone! Thank you Paul and Dangis - and we will be coming straight back to you for the next project!
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Georgia Beales
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We’ve had our dormer loft conversion for coming up to three years now and haven’t had any major issues in this time. Any minor snagging issues have been dealt with quickly by Clapham. The whole process from start to finish was seamless. All the builders were very friendly and considerate too. Will continue to recommend this company to anyone who needs a loft done and will not hesitate to use again in the future. Thank you!
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Danilo Rico profile picture
Danilo Rico
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Clapham construction service was extremely professional, the project was finished before the plan and we are so happy with our new space. Problems were resolved quickly and efficiently throughout the process. This was one of our best investment that not only added value to our property but also a significant improve of our quality of life.
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Joel Prime profile picture
Joel Prime
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I had a loft conversion completed by Clapham Construction Service earlier this year and couldn't be happier with the results. Paul and Dangis were on site every day and kept me fully informed throughout the entire process. Their communication, professionalism, and attention to detail were outstanding. I felt completely confident in their work from start to finish. Highly recommended for anyone looking for reliable and high-quality building services.
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Jane Ansell profile picture
Jane Ansell
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We recently completed a double mansard loft conversion with Clapham Construction Service, and were very happy with the whole design and build process from start to finish. Paul and Dangis were great to work with, providing clear communication and always being available to answer questions or discuss options. Their team are also excellent, with all the trades doing a great job, very professional and respectful of the rest of our house. Inevitably with a build project there were a couple of issues that cropped up along the way, but CCS were excellent at helping resolve them. We are delighted with the final loft and the extra space, and have already recommended them to others!
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Jamie Garratt profile picture
Jamie Garratt
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We have just completed a loft conversion with Clapham Construction and it was great! We are so pleased with the new loft we have in our house, but the process of working with CC was really good. They were easy to engage with from the outset, the price was competitive and the actual construction was quick and efficient. Obviously it was a major building project with all the mess and decisions you’d expect, but it was made a lot easier and less stressful working with Paul, Dangis and the team. They completed the project on time and on budget and we enjoyed working with them - that is more than almost anyone we know can say about similar projects! We’d definitely recommend them.
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Christina Ansong profile picture
Christina Ansong
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We had an exceptional experience with Clapham Construction for our loft conversion. Paul, Dangis, and the whole team were fantastic from start to finish. They transformed our attic into two beautiful loft rooms and a bathroom, exceeding our expectations with their attention to detail. The entire project was completed at an impressive speed without compromising quality. The team showed great care throughout, ensuring everything was done to the highest standard. Their service was professional, friendly, and stress-free. We’re absolutely thrilled with the results and would highly recommend Clapham Construction!
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Ayan Sengupta profile picture
Ayan Sengupta
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We have recently used Clapham Construction Services for loft conversion to add a bedroom and a bath in the house. We are very happy with the end-to-end experience with Paul, Dangis and the entire CCS team for high quality work done in quick time and with a very collaborative approach. Our overall project went into some unexpected blockers, but Paul and Dangis patiently helped us to resolve all the matters, kept us updated with timely communication and have been very flexible to guide us. They brought in a fantastic team to complete the work fast and in a cost-efficient manner. We will recommend CCS any day as a trusted team for home transformation projects.

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What Our Clients Say

"I had a loft conversion completed by Clapham Construction Service earlier this year and couldn't be happier with the results. Paul and Dangis were on site every day and kept me fully informed throughout the entire process. Their communication, professionalism, and attention to detail were outstanding. I felt completely confident in their work from start to finish. Highly recommended for anyone looking for reliable and high-quality building services."

— Joel Prime

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Skylight Conversion

A Skylight or ‘Velux’ loft conversion is one of the simplest conversion types to build. As the roof of the property is not altered  it is normally possible to avoid planning permission. A great way to increase space at lower cost.

Two Window Dormer

Often found on existing homes built 100 years ago and sometimes requested by the planning officers. This conversion provides a surprising amount of additional head room and can be a stylish way to add a loft conversion.

Dormer Conversion

This is one of the most popular types of loft conversion. It provides a large amount of additional space up to 60 Cubic metres and really good head height. It also gives additional design potential such as Juliet Balcony, floor to ceiling glass and roof lights.

Hip to Gable & Rear Dormer

As the title states, the side sloping roof has been raised , normally in brick, and allowed us the head height and structure to add a rear dormer.

Hip to Gable

This is a simple conversion as shown in the image as all we have done is change the side sloping roof and raised this side in brick, which turns a low roof, with low head height into a workable space for any combination of conversion.

L – Shaped Mansard

As with the L-Shape Dormer, the L-Shape Mansard will add a larger amount of space with multiple design options by using the roof of the rear addition. Planning permission is required for this type of work, but we can submit approval for Juliet Balconies and a terrace to really make this conversion special.

L-Shape Dormer

This type of loft conversion is built by joining two dormer builds together, utilising the rear addition. This results in a significantly larger space than other builds. This conversion gives options for more bedrooms in the new build, a terrace on the rear addition and spare rooms, studies or bathrooms.

Mansard Conversion

A mansard loft conversion alters the structure of a sloping roof to an angle of 72 degrees, given a unique shape as shown. Windows are fitted into the new roof almost like small window dormers. Like Dormers the Mansard conversion is usually erected to the rear of a property , but can be constructed as a front and rear mansard (double mansard) if permitted. This conversion provides a larger amount of space, effectively adding another floor to your home.

HIP TO GABLE ATTIC CONVERSION - FAQS

A hip to gable loft conversion involves changing the sloping (hipped) side of a property to a flat (gable) end. This type of conversion is typically done on semi-detached or detached properties and can significantly increase the space available in the loft.

The cost of a hip to gable loft conversion can vary greatly depending on the size of the project, the materials used, and the location of the property. On average, you can expect to pay between £40,000 and above.

In many cases, a hip to gable loft conversion falls under permitted development rights and does not require planning permission. However, this can depend on a number of factors including the size of the conversion and the location of the property. It’s always best to check with your local planning authority.

The length of time it takes to complete a hip to gable loft conversion can vary depending on the complexity of the project. However, on average, you can expect the work to take between 8 to 10 weeks.

A hip to gable loft conversion can provide a number of benefits. It can significantly increase the amount of usable space in your loft, potentially adding a new bedroom or office. It can also increase the value of your property.

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