House-to-flat conversions in Dorset

Covering Dorset

Our house-to-flat conversions service in Dorset covers Bournemouth, Poole, Weymouth and Christchurch and more.

Homes in the South West

Homes in the South West range from coastal and rural properties in stone and slate to city terraces and modern estates, so extensions are designed to match the local materials.

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.

Feasibility check against local planning policy
Kitchens, bathrooms and finishes
Bin, cycle and amenity space works

What will a house-to-flat conversion cost?

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.

Do you need permission for a house-to-flat conversion in Dorset?

In England we deal with the council’s planning team for permission or a lawful development certificate, with building control (the council or a registered building control approver) for inspections, and with neighbours under the Party Wall etc. Act 1996 where it applies.

Dividing a house into flats always needs planning permission in England. Councils assess flat sizes (many use the nationally described space standard), parking, bins, cycle storage and the effect on family housing supply.

What should I think about before starting?

Each flat needs its own utilities and metering.
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.
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.
Build and hand over. Our teams build to the programme, building control inspects, and you get the completion paperwork at the end.

Your questions answered

How long does a conversion take?

Typically 16 to 30 weeks on site after approvals.

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.

Who deals with the council for a project in Dorset?

We do. We prepare the drawings, submit planning or permitted development paperwork if needed, and arrange building control inspections.

House-to-flat conversions near Dorset

Learn more about house-to-flat conversions, or see every project we cover in Dorset.