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Hip to Gable Loft Conversionsin Sheffield

Maximise your loft space by converting the sloping hip of your roof into a full vertical gable wall – creating significantly more usable area than a standard dormer.

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What Is a Hip to Gable Conversion?

A hip to gable loft conversion involves extending the sloping (hipped) side of your roof outward to create a flat, vertical gable wall. This eliminates the inward slope that reduces usable floor space, resulting in a much larger, more practical loft room.

This type of conversion is most commonly combined with a rear dormer to maximise the total loft space. The combination of a hip to gable extension on one or both sides, plus a rear dormer, can create a loft space large enough for two bedrooms or a large master suite with en-suite and dressing area.

Which Properties Suit a Hip to Gable Conversion?

Hip to gable conversions are ideal for semi-detached and detached properties with hipped roofs. In Sheffield and South Yorkshire, this includes many 1930s and 1950s semi-detached homes in areas such as Dore, Totley, Ecclesall, Hillsborough, and across Rotherham, Doncaster, and Barnsley.

If your home has a roof that slopes inward on one or both sides (rather than ending in a flat vertical wall), a hip to gable conversion could be the ideal solution to unlock your loft’s full potential.

The Build Process

Our team begins by removing the existing hip roof structure on one side of the property and extending the party wall or external wall vertically to form a new gable end. New roof timbers are then installed to create a standard pitched roof over the extended area. In most cases, we combine this with a rear dormer to maximise the total space gained.

The structural work is carefully engineered, and we supply full structural calculations to ensure the new gable wall and roof are fully supported and compliant with Building Regulations.

Planning Permission

In many cases, a hip to gable conversion on a semi-detached or detached home falls within Permitted Development rights, meaning full planning permission is not required. However, there are conditions – the extended roof must not exceed the height of the existing ridge, and there are material and volume limitations. Our team will assess your property and confirm whether planning permission is needed before any work begins.

The structural work is carefully engineered, and we supply full structural calculations to ensure the new gable wall and roof are fully supported and compliant with Building Regulations.

Could Your Home Benefit from a Hip to Gable Conversion?

Get in touch for a free property assessment and no-obligation quote.

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What People Say About Us

Designed to Build handled the entire structural steelwork for our extension, including calculations, RSJ installation, and finishing. The workmanship was outstanding and the project ran exactly to schedule.”

The team removed our load-bearing wall and installed the steel beam in just two days. Everything was done safely, cleanly, and fully signed off by Building Control. We couldn't be happier with the open-plan layout.”

Professional, efficient, and clearly experts at structural work. The steel beam installation was seamless and the team took care of all the compliance paperwork. Highly recommend.

We needed multiple RSJs installed for a complex renovation project. Designed to Build managed the whole process confidently—temporary supports, steel installation, inspections, and making good. Excellent structural specialists.

Our commercial unit required reinforcement with new steel beams. The team worked around our operating hours and completed the job with minimal disruption. Reliable and highly capable

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