West Sussex · RH10, RH11
Conversions in Crawley
A property conversion changes the use of existing space — such as a loft, garage, barn or outbuilding — into new habitable accommodation, and typically involves structural alterations, insulation upgrades, new services, and Building Regulations approval, with planning permission or listed building consent needed in some cases.
In Crawley, that covers Ifield, Three Bridges, Southgate, Furnace Green, Broadfield, Pound Hill, Maidenbower, Northgate, West Green, Langley Green, Tilgate, Gossops Green, Bewbush. Crawley combines postwar new-town neighbourhoods with older pockets around Ifield, Three Bridges and Southgate, and sits close to Gatwick Airport with strong transport links into London and along the M23. Housing stock ranges from 1950s–70s estate homes to Victorian terraces and more recent developments, which means project requirements vary considerably from one street to the next.
Coverage
Areas we cover in Crawley for conversions
Property styles in Crawley
Crawley's housing mix includes postwar semis and terraces across the New Town neighbourhoods, Victorian and Edwardian houses around the older Ifield and Southgate areas, and newer estate housing on the town's edges. Many properties are well suited to rear or side-return extensions where garden depth allows, and loft conversions are common in the older stock.
Planning considerations
Crawley Borough Council is the local planning authority. Ifield village and parts of the old town centre fall within conservation areas, which affects permitted development rights and materials on visible elevations. Properties near Gatwick Airport may also be subject to safeguarding or noise-related planning considerations, which we check at feasibility stage.
How it works
Our conversions process
- 01
Feasibility survey
Checking head height, structural capacity, access and services for the proposed conversion.
- 02
Design and approvals
Preparing drawings and securing planning permission (where required) and Building Regulations approval.
- 03
Structural works
Strengthening floors, forming stairs or openings, and altering roof structure where needed.
- 04
Insulation and services
Upgrading insulation, and installing or extending electrics, heating and (for loft conversions) fire escape provisions.
- 05
Fit-out
Plastering, flooring, joinery and decoration.
- 06
Completion
Building Control sign-off and handover.
Also in this area
Other services we provide in Crawley
Nearby coverage
Conversions in nearby areas
FAQs
Conversions in Crawley: FAQs
Do you provide conversions across all of Crawley?
Yes, we cover the RH10 and RH11 postcode areas in full, including Ifield, Three Bridges, Southgate, Furnace Green, Broadfield, Pound Hill, Maidenbower, Northgate, West Green, Langley Green, Tilgate, Gossops Green, Bewbush.
Do I need planning permission for a loft conversion?
Many loft conversions fall under permitted development if they stay within volume limits and do not extend beyond the roof plane at the front. Dormers, roof terraces, and conversions on designated land or flats usually need planning permission. We confirm this at feasibility stage.
What head height do I need for a loft conversion?
As a general guide, a minimum ridge height of around 2.2 to 2.3 metres is usually needed for a workable staircase and standing space, though this varies with roof pitch and layout. We measure this on survey before advising on feasibility.
Do you cover both RH10 and RH11 in Crawley?
Yes, we work across both postcode areas, including the town centre, Ifield, Three Bridges, Southgate, Furnace Green and the surrounding neighbourhoods.
Get a quote for conversions in Crawley
Tell us about the property and what you have in mind, and we'll arrange a site visit.
Last reviewed 2026-07-19.