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 Dorset?
In Dorset, a house renovation typically costs £900–£1,850 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 £81,000–£166,500. Building costs in the South West are close to the UK average, so the figures for Dorset are close to our national guide. Design, structural calculations and council fees are extra.
| Size or type | Guide range |
|---|---|
| Smaller project (63 m²) | £56,500–£116,500 |
| Typical project (90 m²) | £81,000–£166,500 |
| Larger project (126 m²) | £113,500–£233,000 |
| Rate per m² | £900–£1,850 |
The main things that change the cost:
- Extent of rewiring and replumbing
- Structural and damp repairs
- Windows and doors
- Kitchens and bathrooms
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 Dorset?
The approval route for Dorset is set by planning law 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.
If the answer is not clear-cut, we can apply for formal confirmation before you commit to the build.
What we handle
What we take care of:
- Condition survey and scope of works
- Decoration
- Rewiring and heating upgrades
- Kitchens and bathrooms
- Plastering and boarding
- Joinery, doors and floors
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 Dorset
The South West mixes stone and render cottages with post-war and newer estates, and local materials matter more here when matching an extension.
Towns we cover in Dorset include Bournemouth, Poole, Weymouth and Christchurch.
How it works
- 01
Free visit
We look at the property, talk through what you want and measure up. There is no charge and no obligation.
- 02
Design and pricing
Design options, then a fixed quote based on the chosen drawings and specification.
- 03
Approvals in place
We handle planning, building control and neighbour notices before work starts.
- 04
Build and sign-off
We run the build to a written programme and hand over the completion certificate.
Questions about house renovations in Dorset
Does a renovation need building regulations approval?
Some parts do, such as rewiring, structural changes, new windows and heating systems. We handle notifications.
How much does a house renovation cost in Dorset?
In Dorset, a house renovation typically costs £900–£1,850 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 £81,000–£166,500. 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.
How long does a house renovation take in Dorset?
Typically 8 to 20 weeks on site depending on scope. Design and approvals beforehand usually take 6 to 12 weeks.
Do you renovate listed buildings?
Yes, with listed building consent and appropriate materials.
