Hip-to-gable loft conversions · Cardiff

Hip-to-gable loft conversions in Cardiff

Hip-to-gable loft conversions for homes in Cardiff and the surrounding parts of South Glamorgan, designed around your house and built by our teams under a single written contract.

Covering Cardiff

We work in Cardiff (CF10, CF11, CF14) and the places around it, including Whitchurch, Penarth and Caerphilly.

Homes in South Glamorgan

Housing in Wales ranges from terraced streets in the valleys and older industrial towns to stone-built homes in rural areas and modern estates around the cities.

What is included in a hip-to-gable loft conversion in Cardiff?

A hip-to-gable loft conversion rebuilds the sloping side (the hip) of a semi-detached or detached house roof as a vertical gable wall, extending the ridge and creating enough space for a staircase and rooms. It is usually combined with a rear dormer.

  • Planning and building regulations checks under Welsh rules
  • Extended ridge and roof structure
  • Staircase, insulation, plastering and electrics

How much should I budget for a hip-to-gable loft conversion?

Typical ranges for hip-to-gable loft conversions. Ground conditions, access and specification move the final figure, which we fix in writing before work starts.

Hip-to-gable loft conversionsGuide price incl. VAT
Hip-to-gable with rear dormer£60,000 to £80,000
Double hip-to-gable (detached house)£70,000 to £95,000

How is a hip-to-gable loft conversion approved in Cardiff?

In Wales the planning rules, including what counts as permitted development, are set by the Welsh Government, and Welsh building regulations differ in places from England’s. We check both against your house before drawings are finalised, and handle party wall notices where needed.

Wales has its own loft and roof permitted development rules.

What should Cardiff homeowners check first?

  • Matching old clay tiles can be difficult; reclaimed tiles are often used.
  • The new gable is usually rendered or built in matching brick.

How does the project run?

  1. Send us the details. Give us a postcode, a rough idea of size and some photos, by phone, form or the guide price tool.
  2. Survey at your house. We look at the existing structure, services and access, and agree what the design needs to achieve.
  3. Drawings, approvals, written quote. We prepare the design, apply for the approvals it needs, and give you a fixed price in writing.
  4. Build and hand over. Our teams build to the programme, building control inspects, and you get the completion paperwork at the end.

Hip-to-gable loft conversions: common questions

How much does a hip-to-gable loft conversion cost?

Usually £60,000 to £80,000 including VAT with a rear dormer, more on a detached house with two hips.

Will the roof tiles match?

We match the tiles as closely as possible, using reclaimed tiles where the originals are no longer made.

Can you visit a house in Cardiff to quote?

Yes. After a short call we arrange a site visit to measure up and agree what the design needs to do, then send a written price.

Hip-to-gable loft conversions in nearby towns

Learn more about hip-to-gable loft conversions, or see every project we cover in Cardiff.

Planning an extension, loft or new home?

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