Covering Carmarthen
Alongside Carmarthen, we also cover Llanelli (13 miles to the south-east), Ammanford and Pontarddulais.
Homes in Dyfed
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 included in a house-to-flat conversion in Carmarthen?
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.
- Planning and building regulations checks under Welsh rules
- Separate electrics, heating and metering
- Kitchens, bathrooms and finishes
How much does a house-to-flat conversion cost in Carmarthen?
Guide prices for house-to-flat conversions, including VAT where it applies. Your fixed price is confirmed in writing after the survey.
Priced on survey.
Planning and building rules in Carmarthen
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. We prepare and submit the application and deal with the planning officer on your behalf.
What can change the price or programme?
- Some councils restrict the loss of family houses or limit flat conversions in certain streets.
- Sound insulation between flats is tested on completion.
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.
- Free site visit. We measure up, look at access, drains and the structure, and talk through options and budget.
- Price and paperwork. The design is priced line by line, and we submit the planning and building control applications.
- We build it. Work follows an agreed programme, with inspections at each stage and a final sign-off.
Questions about a house-to-flat conversion in Carmarthen
Does converting a house into flats need planning permission?
Yes, always. Subdividing a house into flats is development under planning law.
Can you help with the planning case?
Yes. We check the council’s policies first and only proceed with a design that has a realistic chance of approval.
Can you visit a house in Carmarthen 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.
House-to-flat conversions in nearby towns
- House-to-flat conversions in Llanelli
- House-to-flat conversions in Ammanford
- House-to-flat conversions in Pontarddulais
- House-to-flat conversions in Tenby
Learn more about house-to-flat conversions, or see every project we cover in Carmarthen.

