Covering Crawley
Our coverage around Crawley (RH11, RH77) also includes Horley, Horsham and East Grinstead.
Homes in the South East
Housing across the South East mixes inter-war semis, post-war estates and older cottages in villages and market towns, so rear and side extensions, hip-to-gable lofts and garage conversions all come up regularly.
What do you get with 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.
- Feasibility check against local planning policy
- Fire separation and sound insulation between flats
- Kitchens, bathrooms and finishes
What will a house-to-flat conversion cost?
What house-to-flat conversions typically cost. These are guide ranges; the written quote for your house replaces them.
Priced on survey.
Planning and building rules in Crawley
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.
What should I think about before starting?
- Some councils restrict the loss of family houses or limit flat conversions in certain streets.
- Mortgage lenders and freehold arrangements need early legal advice.
What are the steps?
- Start with a conversation. A short call or the online form is enough for us to understand what you want to build.
- 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.
Your questions answered
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.
Do you work in Crawley?
Yes. Crawley is within our coverage for house-to-flat conversions, along with nearby Horley and Horsham.
Also covering
- House-to-flat conversions in Horley
- House-to-flat conversions in Horsham
- House-to-flat conversions in East Grinstead
- House-to-flat conversions in Reigate
Learn more about house-to-flat conversions, or see every project we cover in Crawley.

