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 Penarth?
In Penarth, a house renovation typically costs £850–£1,650 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 £76,500–£148,500. That range is adjusted for Wales, where domestic building work typically costs around 8% below the national average. Design, structural calculations and council fees are extra.
| Size or type | Guide range |
|---|---|
| Smaller project (63 m²) | £53,500–£104,000 |
| Typical project (90 m²) | £76,500–£148,500 |
| Larger project (126 m²) | £107,000–£208,000 |
| Rate per m² | £850–£1,650 |
The biggest cost drivers are:
- Windows and doors
- Structural and damp repairs
- Whether you live in during the work
- Finishes
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 Penarth?
Approvals for a house renovation in Penarth follow the rules for Wales. In Wales internal renovation usually does not need planning permission unless the house is listed. Notifiable work must meet building regulations.
The Party Wall etc. Act 1996 applies in Wales, so notices must be served before work on a shared wall, on the boundary, or excavation close to a neighbour’s foundations.
If the answer is not clear-cut, we can apply for formal confirmation before you commit to the build.
What we handle
From survey to sign-off, the job normally involves:
- Rewiring and heating upgrades
- Plastering and boarding
- Kitchens and bathrooms
- Building control for notifiable work
- Joinery, doors and floors
- Structural repairs and damp treatment
How long does it take?
Build time is typically 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 Penarth
Terraced houses in Welsh towns often have narrow plots, which suits rear and side return extensions and rear dormers.
Penarth sits in South Glamorgan, about 3 miles south of Cardiff. We cover the whole of Penarth, including postcodes CF64.
How it works
- 01
Survey and brief
We visit, discuss your ideas and budget, and survey the property or site at no cost.
- 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
Construction and completion
We build, put right any snags and hand over the building control certificate.
Questions about house renovations in Penarth
How long does a house renovation take in Penarth?
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 I need planning permission for a house renovation in Penarth?
In Wales internal renovation usually does not need planning permission unless the house is listed. Notifiable work must meet building regulations.
How much does a house renovation cost in Penarth?
In Penarth, a house renovation typically costs £850–£1,650 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 £76,500–£148,500. Your fixed price depends on the survey and drawings.
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.