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 Bangor, Gwynedd?
In Bangor, 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. The guide for Bangor reflects typical costs in Wales, roughly 8% below the UK-wide figure. 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 |
Your quote will depend mainly on:
- Windows and doors
- Finishes
- Structural and damp repairs
- Kitchens and bathrooms
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 Bangor, Gwynedd?
Before anything is built in Bangor, we confirm which approvals apply in 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.
Our first visit includes a check of your planning history, so you know the route before paying for drawings.
What we handle
On a typical house renovation we handle:
- Rewiring and heating upgrades
- Condition survey and scope of works
- Kitchens and bathrooms
- Structural repairs and damp treatment
- Plastering and boarding
- Joinery, doors and floors
How long does it take?
The build itself usually takes 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 Bangor, Gwynedd
Wales has many terraced valley streets, stone cottages and post-war estates, so extension designs are shaped by slopes, materials and local character.
Projects in Bangor (LL57) are surveyed in person before we quote, so the price reflects your actual property.
How it works
- 01
Visit and measured survey
A free visit to understand the project, check access and take measurements.
- 02
Design and fixed quote
Drawings, structural calculations and an itemised, fixed price for the agreed specification.
- 03
Approvals in place
We handle planning, building control and neighbour notices before work starts.
- 04
Build and sign-off
We run the build to a written programme and hand over the completion certificate.
Questions about house renovations in Bangor, Gwynedd
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 Bangor?
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 Bangor?
In Bangor, 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.
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 Bangor?
Typically 8 to 20 weeks on site depending on scope. Design and approvals beforehand usually take 6 to 12 weeks.
Do you renovate listed buildings?
Yes, with listed building consent and appropriate materials.