Covering Caernarfon
Alongside Caernarfon, we also cover Llangefni (8 miles to the north), Bangor and Pwllheli.
Homes in Gwynedd and Anglesey
Welsh homes include long terraces built into hillsides, stone cottages and modern estates, and sloping sites often shape how and where an extension can go.
What do you get with 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.
- Feasibility check against local planning policy
- Planning application and layouts to space standards
- Kitchens, bathrooms and finishes
What will a house-to-flat conversion cost?
What house-to-flat conversions typically cost. These are guide ranges; the written quote for your house replaces them.
Priced on survey.
What approvals does a house-to-flat conversion need in Wales?
In Wales the planning rules, including what counts as permitted development, are set by the Welsh Government, and Welsh building regulations differ in places from England’s. We check both against your house before drawings are finalised, and handle party wall notices where needed.
This needs full planning permission from your council in Wales.
What can affect a house-to-flat conversion?
- Some councils restrict the loss of family houses or limit flat conversions in certain streets.
- Sound insulation between flats is tested on completion.
From first call to completion
- Send us the details. Give us a postcode, a rough idea of size and some photos, by phone, form or the guide price tool.
- 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.
What people ask before starting
How much does a flat conversion cost?
It varies too much to give a reliable guide figure, so we price each one on survey. The reduced 5% VAT rate can apply where the number of dwellings changes.
How long does a conversion take?
Typically 16 to 30 weeks on site after approvals.
Who deals with the council for a project in Caernarfon?
We do. We prepare the drawings, submit planning or permitted development paperwork if needed, and arrange building control inspections.
House-to-flat conversions in nearby towns
- House-to-flat conversions in Llangefni
- House-to-flat conversions in Bangor
- House-to-flat conversions in Pwllheli
- House-to-flat conversions in Holyhead
Learn more about house-to-flat conversions, or see every project we cover in Caernarfon.