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 Helensburgh?
In Helensburgh, 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. Prices in Scotland sit near the national average for this kind of work, and the range for Helensburgh reflects that. 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 |
Your quote will depend mainly on:
- Extent of rewiring and replumbing
- Finishes
- Windows and doors
- Kitchens and bathrooms
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 Helensburgh?
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.
Scotland has no Party Wall Act. Work on shared walls is governed by your title deeds, the Tenements (Scotland) Act 2004 for flats, and common law, so we agree arrangements with neighbours in writing before work starts.
Our first visit includes a check of your planning history, so you know the route before paying for drawings.
What we handle
The work we manage on a house renovation:
- Kitchens and bathrooms
- Decoration
- Rewiring and heating upgrades
- Condition survey and scope of works
- Plastering and boarding
- Structural repairs and damp treatment
How long does it take?
Expect 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 Helensburgh
In Scotland, bungalows and one-and-a-half-storey homes are common, so dormer conversions are a popular way to add bedrooms.
Our Helensburgh coverage includes postcode districts G84, and we also work in nearby places such as Greenock, Dumbarton and Dunoon.
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
Construction and completion
We build, put right any snags and hand over the building control certificate.
Questions about house renovations in Helensburgh
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.
How much does a house renovation cost in Helensburgh?
In Helensburgh, 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.
Does a renovation need building regulations approval?
Some parts do, such as rewiring, structural changes, new windows and heating systems. We handle notifications.
Do I need planning permission for a house renovation in Helensburgh?
In Scotland internal alterations such as structural changes or new bathrooms may need a building warrant, and listed homes need listed building consent.
Do you renovate listed buildings?
Yes, with listed building consent and appropriate materials.
How long does a house renovation take in Helensburgh?
Typically 8 to 20 weeks on site depending on scope. Design and approvals beforehand usually take 6 to 12 weeks.
