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 Penzance?
In Penzance, 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 Penzance 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 |
Your quote will depend mainly on:
- Structural and damp repairs
- Extent of rewiring and replumbing
- Windows and doors
- Kitchens and bathrooms
Your exact price depends on the survey and drawings. The guide price tool gives a quick range in the meantime.
Do you need planning permission for a house renovation in Penzance?
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
The work we manage on a house renovation:
- Structural repairs and damp treatment
- Rewiring and heating upgrades
- Building control for notifiable work
- Kitchens and bathrooms
- Joinery, doors and floors
- Decoration
How long does it take?
Build time is typically 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 Penzance
In parts of the South West, protected landscapes and conservation areas shape what can be built, so materials and roof forms are chosen carefully.
Penzance sits in Cornwall, about 24 miles south-west of Truro. We cover the whole of Penzance, including postcodes TR18.
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 fixed quote
Drawings, structural calculations and an itemised, fixed price for the agreed 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 Penzance
How much does a house renovation cost in Penzance?
In Penzance, 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.
Is VAT reduced on renovations?
Usually not; the standard 20% rate applies. A reduced 5% rate can apply when renovating a home that has been empty for at least two years.
Who approves a house renovation in Penzance?
Planning matters in Penzance go to the council covering your address, and the work needs building control approval. We prepare and submit the applications for you.
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.
Does a renovation need building regulations approval?
Some parts do, such as rewiring, structural changes, new windows and heating systems. We handle notifications.
