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Low Pitch Loft Conversion

Low Pitch Loft Conversion

The pitch of a roof, meaning how steep it is, has a big effect on how much usable space is available in the loft before any building work even starts. Houses built from the 1960s onwards often have a shallower roof pitch than older Victorian or Edwardian properties, and a shallow pitch usually means less head height under the ridge, even in a loft that looks reasonably large from the outside.

On its own, a low pitch is rarely a reason to say no to a conversion, but it usually means a simple velux conversion will not give enough height, and a plan involving a hip to gable, a dormer, or a full mansard is more likely to be the right fit. Please confirm current roof pitch thresholds and head height requirements with our technical team before finalising a quote, since these figures are the sort of thing that gets checked closely at building control.

Who this for

This mostly comes up in houses built from the 1960s onwards, where roof pitches tend to run shallower than the older housing stock across London. It is worth a survey any time a homeowner has been told their roof pitch is too low, since the right combination of techniques can usually still deliver a good sized room.

Project Process Steps

We measure the actual roof pitch and compare the available head height against what building regulations require for the new room.

We work out which technique, or combination of techniques, gets the homeowner the space they want within their budget, whether that is a hip to gable, a dormer, or a fuller mansard approach.

Our structural engineer confirms the roof alterations needed and how they affect the existing structure.

Once the structural plan and any planning matters are agreed, the build proceeds through the usual construction and interior stages.

Frequently asked questions (FAQ)