Covering Gwynedd and Anglesey
Our house-to-flat conversions service in Gwynedd and Anglesey covers Bangor, Holyhead, Caernarfon and Llangefni and more.
Homes in Gwynedd and Anglesey
Housing in Wales ranges from terraced streets in the valleys and older industrial towns to stone-built homes in rural areas and modern estates around the cities.
What is a house-to-flat conversion?
A house-to-flat conversion divides a single house into two or more self-contained flats, each with its own front door, kitchen and bathroom. It always needs planning permission and full building regulations approval, particularly for fire separation and sound insulation between flats.
- Fire separation and sound insulation between flats
- Kitchens, bathrooms and finishes
- Bin, cycle and amenity space works
How much does a house-to-flat conversion cost in Gwynedd and Anglesey?
Typical ranges for house-to-flat conversions. Ground conditions, access and specification move the final figure, which we fix in writing before work starts.
Priced on survey.
What approvals does a house-to-flat conversion 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.
This needs full planning permission from your council in Wales.
What can change the price or programme?
- Some councils restrict the loss of family houses or limit flat conversions in certain streets.
- Mortgage lenders and freehold arrangements need early legal advice.
What are the steps?
- Start with a conversation. A short call or the online form is enough for us to understand what you want to build.
- We visit and measure. A surveyor checks the house, the boundaries and the ground, and discusses what is realistic.
- Design and fixed price. You get drawings and a written price for the agreed specification before anything is ordered.
- Build and hand over. Our teams build to the programme, building control inspects, and you get the completion paperwork at the end.
What people ask before starting
Does converting a house into flats need planning permission?
Yes, always. Subdividing a house into flats is development under planning law.
How long does a conversion take?
Typically 16 to 30 weeks on site after approvals.
How do I get a price for house-to-flat conversions in Gwynedd and Anglesey?
Use the guide price tool for a ballpark figure, then book a visit for a fixed written price for the agreed specification.
Other towns nearby
- House-to-flat conversions in Bangor
- House-to-flat conversions in Holyhead
- House-to-flat conversions in Caernarfon
- House-to-flat conversions in Llangefni
- House-to-flat conversions in Pwllheli
Learn more about house-to-flat conversions, or see every project we cover in Gwynedd and Anglesey.