West Sussex · RH16, RH17
Extensions in Haywards Heath
A home extension adds new floor space to an existing property — commonly a rear or side-return kitchen extension, a wraparound, or a first-floor addition — and typically involves planning or permitted development approval, Building Regulations, and coordination of groundworks, structure, roofing and internal finishing.
In Haywards Heath, that covers Lindfield, Ansty, Franklands Village, Bolnore Village, Perrymount, Sheddingdean, Bentswood. Haywards Heath grew rapidly as a Victorian railway town and retains a good stock of Victorian and Edwardian villas near the centre, alongside substantial 20th-century and more recent housing across its wider suburbs. Its direct rail line to London and position between Brighton and Gatwick make it a popular commuter town for extension and renovation projects.
Coverage
Areas we cover in Haywards Heath for extensions
Property styles in Haywards Heath
Victorian and Edwardian bay-fronted houses are common close to the town centre, with 1930s semis, postwar estates and newer developments further out. Rear and side-return extensions are common on the Victorian terraces, while loft conversions suit the steeper roof pitches typical of the era.
Planning considerations
Mid Sussex District Council is the local planning authority. Parts of the town, particularly around the historic centre, fall within a conservation area. Many Victorian terraces also have relatively narrow plots, which affects extension design and can bring party wall matters into play.
How it works
Our extensions process
- 01
Feasibility and survey
Assessing what is achievable on the plot, including boundary conditions, trees, drainage and neighbouring properties.
- 02
Design
Developing layout and elevations that work with the existing house, in scale and materials.
- 03
Planning route
Establishing whether the extension falls under permitted development or requires a full planning application, and submitting accordingly.
- 04
Party wall matters
Serving party wall notices where the extension is near a boundary, ahead of any groundworks starting.
- 05
Construction
Groundworks, structure, roof, and first fix through to decoration, with the existing house kept weathertight throughout.
- 06
Completion
Building Control sign-off, snagging list and handover.
Also in this area
Other services we provide in Haywards Heath
Nearby coverage
Extensions in nearby areas
FAQs
Extensions in Haywards Heath: FAQs
Do you provide extensions across all of Haywards Heath?
Yes, we cover the RH16 and RH17 postcode areas in full, including Lindfield, Ansty, Franklands Village, Bolnore Village, Perrymount, Sheddingdean, Bentswood.
Do I need planning permission for a rear extension?
Many single-storey rear extensions fall under permitted development if they meet size, height and boundary criteria. Larger extensions, those on designated land, or properties where permitted development rights have been removed, need a full planning application. We assess this during the feasibility stage.
What is a party wall notice and do I need one?
If your extension involves work at or near a shared boundary, the Party Wall etc. Act 1996 usually requires you to notify your neighbour before work starts. We flag this during design so notices can be served in good time.
Are Victorian terraces in Haywards Heath suitable for side-return extensions?
Many are, subject to garden depth, neighbouring boundary conditions and the specific conservation area rules that may apply. We assess this on survey.
Get a quote for extensions in Haywards Heath
Tell us about the property and what you have in mind, and we'll arrange a site visit.
Last reviewed 2026-07-19.