Covering Llanelli
Llanelli sits 13 miles south-east of Carmarthen, with Pontarddulais 6 miles to the north-east and Swansea 10 miles to the south-east.
Homes in Dyfed
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 does a structural alteration involve?
Structural alterations change the load-bearing parts of a house, most often removing a wall between two rooms and putting in a steel beam to create an open-plan layout. The work needs a structural engineer’s design and building regulations approval.
- Temporary works and propping
- Steel beam installation on padstones
- Making good floors, walls and ceilings
How much does a structural alteration cost in Llanelli?
Use these ranges to budget for structural alterations; the survey turns them into a fixed price for the agreed specification.
| Structural alterations | Guide price incl. VAT |
|---|---|
| Single load-bearing wall removal with steel | £3,000 to £7,500 |
| Chimney breast removal with support | £1,800 to £4,500 |
| Multiple walls or full open-plan remodel | £8,000 to £20,000 |
What approvals does a structural alteration need in Wales?
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.
Internal work like this does not usually need planning permission in Wales unless the building is listed. Building regulations approval is needed for the structural work.
What should Llanelli homeowners check first?
- The beam size can mean a downstand in the ceiling unless it is set flush within the floor.
- Pipes and cables in the wall need rerouting first.
How does the project run?
- Tell us about the project. Call, use the guide price tool or send the form with a few photos and a postcode.
- Survey at your house. We look at the existing structure, services and access, and agree what the design needs to achieve.
- Drawings, approvals, written quote. We prepare the design, apply for the approvals it needs, and give you a fixed price in writing.
- Construction and completion. One site lead co-ordinates every trade through to the building control certificate.
Structural alterations: common questions
How much does it cost to remove a load-bearing wall?
Usually £3,000 to £7,500 including VAT for a single wall with a steel beam, calculations and making good.
Do I need building regulations approval to remove a wall?
Yes, for any load-bearing wall. Non-structural partitions usually do not need approval.
Who deals with the council for a project in Llanelli?
We do. We prepare the drawings, submit planning or permitted development paperwork if needed, and arrange building control inspections.
Structural alterations near Llanelli
- Structural alterations in Pontarddulais
- Structural alterations in Swansea
- Structural alterations in Ammanford
- Structural alterations in Carmarthen
Learn more about structural alterations, or see every project we cover in Llanelli.

