Loft conversions · Carmarthen

Loft conversions in Carmarthen

Our loft conversions service covers Carmarthen and the rest of Dyfed. You get a fixed price in writing for the agreed specification, and one person co-ordinating the trades.

Covering Carmarthen

Our coverage around Carmarthen (SA31) also includes Llanelli, Ammanford and Pontarddulais.

Homes in Dyfed

Welsh homes include long terraces built into hillsides, stone cottages and modern estates, and sloping sites often shape how and where an extension can go.

What is a loft conversion?

A loft conversion turns an unused roof space into habitable rooms, usually a bedroom with an en-suite, by strengthening the floor, adding a staircase, insulating the roof and putting in windows. The type you need depends on the roof: rooflight, dormer, hip-to-gable or mansard.

  • Planning and building regulations checks under Welsh rules
  • Design drawings and structural calculations
  • New floor joists, steels and staircase

How much should I budget for a loft conversion?

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

Loft conversionsGuide price incl. VAT
Rooflight conversion£30,000 to £45,000
Dormer conversion£50,000 to £90,000
Hip-to-gable with dormer£60,000 to £95,000
Mansard conversion£65,000 to £110,000

Do you need permission for a loft conversion in Carmarthen?

Planning decisions in Wales are made by the local council, using permitted development rules set by the Welsh Government rather than England’s. Building regulations in Wales have their own approved documents, and the Party Wall etc. Act 1996 applies to work on shared walls and boundaries.

Wales has its own loft and roof permitted development rules.

What should Carmarthen homeowners check first?

  • Head height under the ridge decides whether a conversion is practical.
  • The new staircase usually takes space from the landing or a bedroom below.

From first call to completion

  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. Free site visit. We measure up, look at access, drains and the structure, and talk through options and budget.
  3. Price and paperwork. The design is priced line by line, and we submit the planning and building control applications.
  4. Construction and completion. One site lead co-ordinates every trade through to the building control certificate.

Loft conversions: common questions

How much does a loft conversion cost?

Roughly £30,000 to £45,000 for a rooflight conversion, £50,000 to £90,000 for a dormer, £60,000 to £95,000 for a hip-to-gable and £65,000 to £110,000 for a mansard, including VAT.

Is my loft suitable for conversion?

If there is about 2.2 m or more from the top of the ceiling joists to the underside of the ridge, it usually is. We check this at the free site visit.

Who deals with the council for a project in Carmarthen?

We do. We prepare the drawings, submit planning or permitted development paperwork if needed, and arrange building control inspections.

Loft conversions in nearby towns

Learn more about loft conversions, or see every project we cover in Carmarthen.

Planning an extension, loft or new home?

Get a guide price in two minutes, then book a free site visit.

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