Covering Cowbridge
Cowbridge is about 11 miles west of Cardiff. We also cover Llantwit Major (4 miles to the south-west), Bridgend and Barry.
Homes in South Glamorgan
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 goes into a structural alteration?
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.
- Building control application and inspections
- Temporary works and propping
- Making good floors, walls and ceilings
What will a structural alteration cost?
What structural alterations typically cost. These are guide ranges; the written quote for your house replaces them.
| 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 |
How is a structural alteration approved in Cowbridge?
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 can change the price or programme?
- Shared chimney breasts and walls can involve the Party Wall Act.
- Pipes and cables in the wall need rerouting first.
What are the steps?
- Send us the details. Give us a postcode, a rough idea of size and some photos, by phone, form or the guide price tool.
- We visit and measure. A surveyor checks the house, the boundaries and the ground, and discusses what is realistic.
- Drawings, approvals, written quote. We prepare the design, apply for the approvals it needs, and give you a fixed price in writing.
- We build it. Work follows an agreed programme, with inspections at each stage and a final sign-off.
What people ask before starting
Do I need building regulations approval to remove a wall?
Yes, for any load-bearing wall. Non-structural partitions usually do not need approval.
How do I know if a wall is load-bearing?
We check on site and confirm with the structural engineer.
Who deals with the council for a project in Cowbridge?
We do. We prepare the drawings, submit planning or permitted development paperwork if needed, and arrange building control inspections.
Structural alterations in nearby towns
- Structural alterations in Llantwit Major
- Structural alterations in Bridgend
- Structural alterations in Barry
- Structural alterations in Whitchurch
Learn more about structural alterations, or see every project we cover in Cowbridge.

