Lofts · 3 min read

Loft conversions and permitted development

Many lofts don't need planning permission. Here's when yours might not, and why that saves time and money.

Loft conversions and permitted development

Depending on your property, a loft conversion can often be built under permitted development rights, which means planning permission may not be needed. That can save weeks and money compared with other extensions.

The usual limits

  • Extra roof volume within set limits (lower for terraced houses than for semi-detached or detached homes)
  • No extension beyond the existing front roof slope
  • Materials similar in appearance to the existing house
  • Side windows obscure-glazed and non-opening below 1.7 m
  • Not available in conservation areas or on flats

Building regulations approval is always needed, covering structure, fire escape, insulation and stairs. We'll make sure it's in place.

Check first

Rules change and every house is different. Confirm with your architect, or apply for a Lawful Development Certificate for certainty before you build.

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