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 Dumbarton?
In Dumbarton, a house renovation typically costs £850–£1,750 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–£157,500. Building costs in Scotland are close to the UK average, so the figures for Dumbarton are close to our national guide. Design, structural calculations and council fees are extra.
| Size or type | Guide range |
|---|---|
| Smaller project (63 m²) | £53,500–£110,000 |
| Typical project (90 m²) | £76,500–£157,500 |
| Larger project (126 m²) | £107,000–£220,500 |
| Rate per m² | £850–£1,750 |
What moves the price most:
- Whether you live in during the work
- Structural and damp repairs
- Kitchens and bathrooms
- Windows and doors
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 Dumbarton?
Here is how the rules work for a house renovation in Scotland. In Scotland internal alterations such as structural changes or new bathrooms may need a building warrant, and listed homes need listed building consent.
In Scotland a building warrant is needed before work starts on most extensions, loft conversions and conversions. It is issued by the council’s building standards service. When the work is finished, a completion certificate is submitted and accepted by the council after inspection.
If the answer is not clear-cut, we can apply for formal confirmation before you commit to the build.
What we handle
Handled as part of most house renovations:
- Rewiring and heating upgrades
- Joinery, doors and floors
- Structural repairs and damp treatment
- Decoration
- Kitchens and bathrooms
- Building control for notifiable work
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 Dumbarton
In Scotland, bungalows and one-and-a-half-storey homes are common, so dormer conversions are a popular way to add bedrooms.
Dumbarton sits in Dunbartonshire. We cover the whole of Dumbarton, including postcodes G82.
How it works
- 01
Visit and measured survey
A free visit to understand the project, check access and take measurements.
- 02
Design and pricing
Design options, then a fixed quote based on the chosen drawings and specification.
- 03
Permissions sorted
Applications, building control and neighbour arrangements, all before the start date.
- 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 Dumbarton
Do I need planning permission for a house renovation in Dumbarton?
In Scotland internal alterations such as structural changes or new bathrooms may need a building warrant, and listed homes need listed building consent.
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 Dumbarton?
In Dumbarton, a house renovation typically costs £850–£1,750 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–£157,500. Your fixed price depends on the survey and drawings.
Do you build house renovations in Dumbarton?
Yes. We build house renovations across Dumbarton, including postcodes G82. Every project starts with a free home visit.
Do you renovate listed buildings?
Yes, with listed building consent and appropriate materials.
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.