Covering Hanworth
We work in Hanworth (TW13) and the places around it, including Feltham, Sunbury-on-Thames and Hounslow.
Homes in London
Much of London’s housing is Victorian and Edwardian terraces, which is why side return extensions, rear dormers and mansards are so common. Many streets are in conservation areas, and several boroughs use Article 4 directions that remove some permitted development rights.
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 should I budget for a structural alteration?
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 |
Planning and building rules in Hanworth
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?
- 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?
- Send us the details. Give us a postcode, a rough idea of size and some photos, by phone, form or the guide price tool.
- Free site visit. We measure up, look at access, drains and the structure, and talk through options and budget.
- 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.
Your questions answered
Do I need building regulations approval to remove a wall?
Yes, for any load-bearing wall. Non-structural partitions usually do not need approval.
Can the steel be hidden in the ceiling?
Often it can be set within the floor depth, avoiding a downstand. The engineer confirms what is possible.
Who deals with the council for a project in Hanworth?
We do. We prepare the drawings, submit planning or permitted development paperwork if needed, and arrange building control inspections.
Also covering
- Structural alterations in Feltham
- Structural alterations in Sunbury-on-Thames
- Structural alterations in Hounslow
- Structural alterations in Ashford
Learn more about structural alterations, or see every project we cover in Hanworth.

