Covering Eltham
Our coverage around Eltham (SE9) also includes Blackheath (2 miles to the north-west) and Welling.
Homes in London
London projects often mean working on period terraces with neighbours on both sides, tight access through the house and conservation area controls, so careful planning and party wall work matter as much as the build.
What goes into 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
How much does a house-to-flat conversion cost in Eltham?
Indicative costs for house-to-flat conversions. London and the South East usually sit towards the top of each range.
Priced on survey.
How is a house-to-flat conversion approved in Eltham?
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 should Eltham homeowners check first?
- Some councils restrict the loss of family houses or limit flat conversions in certain streets.
- Each flat needs its own utilities and metering.
What are the steps?
- 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.
- Construction and completion. One site lead co-ordinates every trade through to the building control certificate.
House-to-flat conversions: common questions
Does converting a house into flats need planning permission?
Yes, always. Subdividing a house into flats is development under planning law.
What are the main building regulations issues?
Fire separation between flats, protected escape routes, sound insulation and separate services.
Who deals with the council for a project in Eltham?
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 Blackheath
- House-to-flat conversions in Welling
- House-to-flat conversions in Catford
- House-to-flat conversions in Greenwich
Learn more about house-to-flat conversions, or see every project we cover in Eltham.

