Covering Bangor, Gwynedd and Anglesey
Our coverage around Bangor, Gwynedd and Anglesey (LL57) also includes Llangefni (8 miles to the west) and Caernarfon.
Homes in Gwynedd and Anglesey
Across Wales you find valley terraces, coastal towns, rural stone houses and newer estates, so access, slopes and local materials all feature in the design.
What do you get with an upward extension?
An upward extension adds a new storey on top of an existing house, most often turning a bungalow into a two-storey or chalet-style home. It can double the floor area without using any of the garden.
- Planning and building regulations checks under Welsh rules
- Structural survey of walls and foundations
- Staircase and changes to the ground floor layout
What will an upward extension cost?
Use these ranges to budget for bungalow and upward extensions; the survey turns them into a fixed price for the agreed specification.
| Bungalow and upward extensions | Guide price incl. VAT |
|---|---|
| Chalet conversion with dormers (total) | £45,000 to £85,000 |
| New first floor, standard specification | £2,200 to £2,800 per m² |
| New first floor, good specification | £2,800 to £3,300 per m² |
| New first floor, high specification | £3,300 to £3,800 per m² |
What approvals does an upward extension need in Wales?
Welsh projects need planning clearance from the council under Welsh rules, building regulations approval under the Welsh approved documents, and party wall notices where the work affects a neighbour’s wall or foundations.
Adding a storey in Wales needs planning permission. We prepare the application with drawings showing how the new roofline fits the street.
What can change the price or programme?
- Some bungalow foundations need strengthening before a storey can be added.
- Neighbours’ light and privacy are the main planning tests.
How does the project run?
- Start with a conversation. A short call or the online form is enough for us to understand what you want to build.
- Survey at your house. We look at the existing structure, services and access, and agree what the design needs to achieve.
- Design and fixed price. You get drawings and a written price for the agreed specification before anything is ordered.
- We build it. Work follows an agreed programme, with inspections at each stage and a final sign-off.
Your questions answered
Can I add a first floor to my bungalow?
Often yes, if the walls and foundations can carry the load and planning allows. We check the structure first.
How long does it take?
About 12 to 24 weeks on site.
Can you visit a house in Bangor, Gwynedd and Anglesey to quote?
Yes. After a short call we arrange a site visit to measure up and agree what the design needs to do, then send a written price.
Bungalow and upward extensions in nearby towns
- Bungalow and upward extensions in Llangefni
- Bungalow and upward extensions in Caernarfon
- Bungalow and upward extensions in Colwyn Bay
- Bungalow and upward extensions in Holyhead
Learn more about bungalow and upward extensions, or see every project we cover in Bangor.