Covering West Glamorgan
We cover West Glamorgan, including Swansea, Neath, Ystalyfera and Pontarddulais.
Homes in West Glamorgan
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 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
What will a house-to-flat conversion cost?
Use these ranges to budget for house-to-flat conversions; the survey turns them into a fixed price for the agreed specification.
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.
- Sound insulation between flats is tested on completion.
How does the project run?
- Tell us about the project. Call, use the guide price tool or send the form with a few photos and a postcode.
- We visit and measure. A surveyor checks the house, the boundaries and the ground, and discusses what is realistic.
- 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.
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.
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.
Do you work in West Glamorgan?
Yes. West Glamorgan is within our coverage for house-to-flat conversions, along with nearby Swansea and Neath.
Other towns nearby
- House-to-flat conversions in Swansea
- House-to-flat conversions in Neath
- House-to-flat conversions in Ystalyfera
- House-to-flat conversions in Pontarddulais
Learn more about house-to-flat conversions, or see every project we cover in West Glamorgan.

