Covering West Sussex
We cover West Sussex, including Crawley, Worthing, Bognor Regis and Littlehampton, and the towns around them.
Homes in the South East
The South East has a lot of 1930s and post-war semi-detached housing, well suited to rear extensions and hip-to-gable loft conversions, alongside period properties in conservation areas that need a more careful design.
What goes into a house-to-flat conversion?
We assess the house against the council’s policies on flat sizes, parking, bins and cycle storage before any design work, then design layouts to the space standards your council uses. On site the critical work is fire separation, sound insulation between floors, separate services and meters, and protected escape routes.
- Planning application and layouts to space standards
- Separate electrics, heating and metering
- Bin, cycle and amenity space works
What is the guide price for a house-to-flat conversion in West Sussex?
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 West Sussex?
English projects need planning clearance from the local council, building regulations sign-off from building control, and party wall notices where the work is on or near a shared boundary. We prepare and manage all three.
Dividing a house into flats always needs planning permission in England.
What can change the price or programme?
- Some councils restrict the loss of family houses or limit flat conversions in certain streets.
- Each flat needs its own utilities and metering.
What happens after I enquire?
- Send us the details. Give us a postcode, a rough idea of size and some photos, by phone, form or the guide price tool.
- Survey at your house. We look at the existing structure, services and access, and agree what the design needs to achieve.
- Drawings, approvals, written quote. We prepare the design, apply for the approvals it needs, and give you a fixed price in writing.
- We build it. Work follows an agreed programme, with inspections at each stage and a final sign-off.
What people ask before starting
Does converting a house into flats need planning permission?
Yes, always. Subdividing a house into flats is development under planning law.
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 visit a house in West Sussex 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 near West Sussex
- House-to-flat conversions in Crawley
- House-to-flat conversions in Worthing
- House-to-flat conversions in Bognor Regis
- House-to-flat conversions in Littlehampton
- House-to-flat conversions in Horsham
- House-to-flat conversions in Haywards Heath
- House-to-flat conversions in Chichester
- House-to-flat conversions in Burgess Hill
- House-to-flat conversions in East Grinstead
Learn more about house-to-flat conversions, or see every project we cover in West Sussex.

