Structural alterations in Cornwall

Covering Cornwall

We cover Cornwall, including Redruth, Falmouth, St Austell and Truro, and the towns around them.

Projects in Cornwall are taken on by arrangement, and any travel and accommodation costs for the team are shown openly in the quote.

Homes in the South West

In the South West, matching local stone, render or slate is often the main design question, and conservation areas and listed buildings are common in historic towns.

What is included in a structural alteration in Cornwall?

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.

Structural engineer’s design and calculations
Temporary works and propping
Making good floors, walls and ceilings

How much does a structural alteration cost in Cornwall?

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 England?

Projects in England go through two separate checks. Planning (or confirmation that the work is permitted development) comes from the district, borough or unitary council, and building regulations approval comes from the council’s building control team or a registered building control approver. Where work touches a shared wall or digs near a neighbour’s foundations, the Party Wall etc. Act 1996 applies.

Internal work like this does not usually need planning permission unless the house is listed or your permitted development rights have been removed.

What can change the price or programme?

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?

Send us the details. Give us a postcode, a rough idea of size and some photos, by phone, form or the guide price tool.
Survey at your house. We look at the existing structure, services and access, and agree what the design needs to achieve.
Design and fixed price. You get drawings and a written price for the agreed specification before anything is ordered.
Construction and completion. One site lead co-ordinates every trade through to the building control certificate.

Questions about a structural alteration in Cornwall

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.

How long does it take?

The structural work is usually done in a few days, with one to three weeks including making good.

Do you work in Cornwall?

Yes. Cornwall is within our coverage for structural alterations, along with nearby Redruth and Falmouth.

Structural alterations near Cornwall

Learn more about structural alterations, or see every project we cover in Cornwall.