Covering Seaham
Seaham sits 23 miles north of Darlington, with Houghton-le-Spring 5 miles to the west and Sunderland 5 miles to the north.
Homes in the North East
The North East has terraced housing including Tyneside flats, inter-war semis and post-war estates, so loft conversions, rear extensions and layout changes are popular ways to add space.
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.
- Structural engineer’s design and calculations
- Building control application and inspections
- Fire protection and plaster encasement
What will a structural alteration cost?
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 |
Planning and building rules in Seaham
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 should I think about before starting?
- Shared chimney breasts and walls can involve the Party Wall Act.
- Pipes and cables in the wall need rerouting first.
From first call to completion
- Start with a conversation. A short call or the online form is enough for us to understand what you want to build.
- 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.
- Build and hand over. Our teams build to the programme, building control inspects, and you get the completion paperwork at the end.
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.
How long does it take?
The structural work is usually done in a few days, with one to three weeks including making good.
Can you visit a house in Seaham to quote?
Yes. After a short call we arrange a site visit to measure up and agree what the design needs to do, then send a written price.
Also covering
- Structural alterations in Houghton-le-Spring
- Structural alterations in Sunderland
- Structural alterations in Washington
- Structural alterations in Chester-le-Street
Learn more about structural alterations, or see every project we cover in Seaham.

