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 High Wycombe?
In High Wycombe, a house renovation typically costs £1,000–£2,000 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 £90,000–£180,000. That range is adjusted for the South East, where domestic building work typically costs around 12% above the national average. Design, structural calculations and council fees are extra.
| Size or type | Guide range |
|---|---|
| Smaller project (63 m²) | £63,000–£126,000 |
| Typical project (90 m²) | £90,000–£180,000 |
| Larger project (126 m²) | £126,000–£252,000 |
| Rate per m² | £1,000–£2,000 |
Your quote will depend mainly on:
- Whether you live in during the work
- Finishes
- Structural and damp repairs
- Windows and doors
A guide range is only a starting point: the guide price tool gives an instant figure for your size, and a free survey turns it into a fixed quote.
Do you need planning permission for a house renovation in High Wycombe?
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.
Building regulations approval comes from the council’s building control service or a registered building control approver. The work is inspected at key stages, such as foundations, drainage and insulation, and a completion certificate is issued at the end.
We check this for your address before design work starts, so there are no surprises later.
What we handle
From survey to sign-off, the job normally involves:
- Rewiring and heating upgrades
- Building control for notifiable work
- Joinery, doors and floors
- Condition survey and scope of works
- Structural repairs and damp treatment
- Plastering and boarding
How long does it take?
Build time is typically 8 to 20 weeks on site depending on scope. Allow time beforehand for drawings and approvals, usually 6 to 12 weeks.
Building in High Wycombe
The South East has a broad mix of housing, from Victorian terraces in the towns to post-war semis and newer estates, so extension types vary street by street.
If your home is in High Wycombe or close by in Marlow, Amersham and Maidenhead, a free home visit is the first step.
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
Drawings and written quote
We prepare the design and give you a written, itemised quote with inclusions and exclusions.
- 03
Approvals
Planning or permitted development confirmation, building regulations and any party wall matters.
- 04
Build and sign-off
We run the build to a written programme and hand over the completion certificate.
Questions about house renovations in High Wycombe
Do I need planning permission to renovate?
Internal work usually does not need planning permission unless the house is listed. External changes may.
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 renovate listed buildings?
Yes, with listed building consent and appropriate materials.
How long does a house renovation take in High Wycombe?
Typically 8 to 20 weeks on site depending on scope. Design and approvals beforehand usually take 6 to 12 weeks.
How much does a house renovation cost in High Wycombe?
In High Wycombe, a house renovation typically costs £1,000–£2,000 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 £90,000–£180,000. Your fixed price depends on the survey and drawings.
