What is a house renovation?

A house renovation brings an older or tired home up to date. It can include rewiring, a new heating system, replastering, new floors, windows, kitchens and bathrooms, and changes to the layout. A full renovation is often combined with an extension or loft conversion.
How much does a house renovation cost in Seaham?
In Seaham, a house renovation typically costs £800–£1,600 per m² for a medium to full renovation, including VAT at 20% (5% may apply to homes empty for two years or more). For a typical 90 m² project that is roughly £72,000–£144,000. That range is adjusted for the North East, where domestic building work typically costs around 10% below the national average. Design, structural calculations and council fees are extra.
| Size or type | Guide range |
|---|---|
| Smaller project (63 m²) | £50,500–£101,000 |
| Typical project (90 m²) | £72,000–£144,000 |
| Larger project (126 m²) | £101,000–£201,500 |
| Rate per m² | £800–£1,600 |
The biggest cost drivers are:
- Structural and damp repairs
- Kitchens and bathrooms
- Finishes
- Windows and doors
For a figure based on your own measurements, try the guide price tool, then book a free home visit for a fixed quote.
Do you need planning permission for a house renovation in Seaham?
Whether you need planning permission depends on your house and its location in England. In England internal renovation usually does not need planning permission unless the house is listed, when listed building consent covers internal work too. Notifiable work such as rewiring, structural changes, new windows and heating must meet building regulations.
Where work involves a shared wall, building on the boundary, or digging foundations within 3 metres of a neighbour’s building and deeper than its foundations (or within 6 metres for deeper work), the Party Wall etc. Act 1996 applies and notices must be served before work starts.
At the survey we check your house’s planning history and any restrictions, and tell you which route applies.
What we handle
From survey to sign-off, the job normally involves:
- Kitchens and bathrooms
- Decoration
- Building control for notifiable work
- Rewiring and heating upgrades
- Joinery, doors and floors
- Structural repairs and damp treatment
How long does it take?
Expect 8 to 20 weeks on site depending on scope. Before that, surveys, drawings and approvals usually take 6 to 12 weeks, longer if the council asks for changes.
Building in Seaham
The North East has many terraced streets and post-war semis, where rear extensions and loft conversions are popular ways to gain space.
From SR7 outwards, we take on projects throughout Seaham and the surrounding parts of County Durham.
How it works
- 01
Visit and measured survey
A free visit to understand the project, check access and take measurements.
- 02
Drawings and written quote
We prepare the design and give you a written, itemised quote with inclusions and exclusions.
- 03
Approvals in place
We handle planning, building control and neighbour notices before work starts.
- 04
Construction and completion
We build, put right any snags and hand over the building control certificate.
Questions about house renovations in Seaham
Does a renovation need building regulations approval?
Some parts do, such as rewiring, structural changes, new windows and heating systems. We handle notifications.
Do you build house renovations in Seaham?
Yes. We build house renovations across Seaham, including postcodes SR7. Every project starts with a free home visit.
Can I live in the house during a renovation?
For light work, yes. For a full renovation, most clients move out for some or all of the job.
How much does a house renovation cost in Seaham?
In Seaham, a house renovation typically costs £800–£1,600 per m² for a medium to full renovation, including VAT at 20% (5% may apply to homes empty for two years or more). A typical 90 m² project comes to roughly £72,000–£144,000. Your fixed price depends on the survey and drawings.
Do I need planning permission to renovate?
Internal work usually does not need planning permission unless the house is listed. External changes may.
