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Hip to Gable Loft Conversion London

Looking for More Headspace With Your Loft Conversion? Look No Further Than a Hip to Gable Conversion

What is a Hip to Gable Loft Conversion?

Before we do anything else, it’s worth explaining exactly what a “hip to gable” loft conversion actually is. Hip to gable conversions take the sloped element of a hip roof and convert it into a vertical gable.

In doing  so, this creates a lot more headspace (and thus usable space) in your loft. Hip to gable conversions are, therefore, incredibly popular and it’s no wonder to see why! These conversions are particularly popular in London and other heavily built-up areas where space comes at a premium.

Can You Change a Hip Roof to a Gable Roof? (Planning Permissions)

Yes, you can change a hip roof to a gable roof, and the best part is that it typically falls within a property’s permitted developments. What that means is that undertaking such a conversion doesn’t require any additional planning permissions from the planning authorities. 

That said, once your hip to gable loft conversion is completed, it will then need to pass on a number of building regulations. The areas that will be inspected include:

  • Fire safety
  • Insulation
  • Soundproofing
  • Heating and plumbing
  • Electrics
  • Structural integrity 
  • Stability
  • Headroom 

Fortunately, by choosing a firm like London Lofts Ltd, we’ll ensure that each and every aspect of your loft conversion is compliant and watertight with the appropriate building regulations. 

Hip to Gable Loft Conversion Cost

As an estimate, most hip to gable loft conversions will cost you at least £50,000. That figure will get you a solid, no-thrills conversion. If you want something more high-end and exclusive, in terms of both the layout and the materials used, then this figure can rise considerably. 

Looking at that in comparison with other loft conversion types, hip to gable conversions are more expensive than dormer conversions (due to the increased parts and labour required) but less than a mansard conversion. In other words, hip to gable loft conversions can be considered mid-range in terms of their price point.

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Hip to Gable Loft Conversion FAQs

If you’re wanting to know just why hip to gable conversions are so popular, it’s worth understanding the drawbacks of a hip roof. Disadvantages of a hip roof include:


  • A lack of headroom. Hipped roofs drastically reduce the amount of headroom in your loft space. This means that, in reality, all the loft can feasibly be used for is as additional storage.
  • Limit your window options to skylights. Because of the pitch of hipped roofs, the only window option at your disposal is that of a skylight or Velux window.
  • Risk of leaks is slightly higher in hip roofs than other roof types.

Because of the increased parts and labour required for hip to gable loft conversions, when compared with other conversion types, hip to gable projects take slightly longer. On average, a full conversion in this style will take between 4 and a half to 6 weeks to complete from start to finish.