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 Keynsham?
In Keynsham, 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 Keynsham 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 |
What moves the price most:
- Structural and damp repairs
- Windows and doors
- Finishes
- Whether you live in during the work
Use the guide price tool to see how size and specification change the figure, then ask for a written, itemised quote.
Do you need planning permission for a house renovation in Keynsham?
Approvals for a house renovation in Keynsham follow the rules for 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
On a typical house renovation we handle:
- Building control for notifiable work
- Condition survey and scope of works
- Rewiring and heating upgrades
- Decoration
- Joinery, doors and floors
- Plastering and boarding
How long does it take?
Allow 8 to 20 weeks on site depending on scope. Design and approvals come first and typically take 6 to 12 weeks, depending on the approval route.
Building in Keynsham
In parts of the South West, protected landscapes and conservation areas shape what can be built, so materials and roof forms are chosen carefully.
Keynsham sits in Gloucestershire, about 33 miles south of Gloucester. We cover the whole of Keynsham, including postcodes BS30 and BS31.
How it works
- 01
Survey and brief
We visit, discuss your ideas and budget, and survey the property or site at no cost.
- 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
Build and handover
Work follows the agreed programme, with inspections along the way and a completion certificate at the end.
Questions about house renovations in Keynsham
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.
How long does a house renovation take in Keynsham?
Typically 8 to 20 weeks on site depending on scope. Design and approvals beforehand usually take 6 to 12 weeks.
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.
Do you renovate listed buildings?
Yes, with listed building consent and appropriate materials.
How much does a house renovation cost in Keynsham?
In Keynsham, 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.
