Covering Swanley
Swanley sits 17 miles north-west of Maidstone, with Bexley 3 miles to the north and Dartford 4 miles to the north-east.
Homes in the South East
Many South East homes are inter-war or post-war semis and detached houses with room for rear and side extensions, while historic town centres and villages bring conservation area and listed building controls.
What is 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.
- Structural engineer’s design and calculations
- Temporary works and propping
- Steel beam installation on padstones
What is the guide price for a structural alteration in Swanley?
Indicative costs for structural alterations. London and the South East usually sit towards the top of each range.
| 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. It does need building regulations approval because it affects the structure.
What can affect a structural alteration?
- 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.
What are the steps?
- Start with a conversation. A short call or the online form is enough for us to understand what you want to build.
- We visit and measure. A surveyor checks the house, the boundaries and the ground, and discusses what is realistic.
- Price and paperwork. The design is priced line by line, and we submit the planning and building control applications.
- Construction and completion. One site lead co-ordinates every trade through to the building control certificate.
What people ask before starting
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.
Who deals with the council for a project in Swanley?
We do. We prepare the drawings, submit planning or permitted development paperwork if needed, and arrange building control inspections.
Also covering
- Structural alterations in Bexley
- Structural alterations in Dartford
- Structural alterations in Welling
- Structural alterations in Eltham
Learn more about structural alterations, or see every project we cover in Swanley.

