Structural alterations in Carshalton

Covering Carshalton

Our coverage around Carshalton (SM5) also includes Sutton, Mitcham and Morden.

Homes in London

London projects often mean working on period terraces with neighbours on both sides, tight access through the house and conservation area controls, so careful planning and party wall work matter as much as the build.

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
Steel beam installation on padstones
Fire protection and plaster encasement

How much does a structural alteration cost in Carshalton?

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

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

Planning and building rules in Carshalton

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. It does need building regulations approval because it affects the structure.

What can affect a structural alteration?

Removing walls can affect the fire escape route on open-plan ground floors in three-storey houses.
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.

Your questions answered

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.

How do I get a price for structural alterations in Carshalton?

Use the guide price tool for a ballpark figure, then book a visit for a fixed written price for the agreed specification.

Also covering

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