House-to-flat conversions in Coulsdon

Covering Coulsdon

Our coverage around Coulsdon (CR5) also includes Purley, Banstead and Sutton.

Homes in London

Terraced houses dominate many London neighbourhoods, so most projects involve shared walls, narrow access and a party wall process. Conservation areas are widespread, and some boroughs have their own mansard and basement guidance.

What is included in a house-to-flat conversion in Coulsdon?

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 application and layouts to space standards
Fire separation and sound insulation between flats
Kitchens, bathrooms and finishes

How much does a house-to-flat conversion cost in Coulsdon?

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 England?

Projects in England go through two separate checks. Planning (or confirmation that the work is permitted development) comes from the district, borough or unitary council, and building regulations approval comes from the council’s building control team or a registered building control approver. Where work touches a shared wall or digs near a neighbour’s foundations, the Party Wall etc. Act 1996 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 can affect a house-to-flat conversion?

Sound insulation between flats is tested on completion.
Mortgage lenders and freehold arrangements need early legal advice.

From first call to completion

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.

Questions about a house-to-flat conversion in Coulsdon

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.

What are the main building regulations issues?

Fire separation between flats, protected escape routes, sound insulation and separate services.

How do I get a price for house-to-flat conversions in Coulsdon?

Use the guide price tool for a ballpark figure, then book a visit for a fixed written price for the agreed specification.

Also covering

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