Surrey · RH1
Extensions in Redhill
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 Redhill, that covers Earlswood, Salfords, South Park, Whitebushes, St John's, Three Arch Road. Redhill developed rapidly as a Victorian railway town and today has a mixed housing stock including Victorian terraces close to the centre, interwar suburbs, and later estate housing further out, with good rail links into London.
Coverage
Areas we cover in Redhill for extensions
Property styles in Redhill
Victorian terraces and semis are common near the town centre, with 1930s and postwar housing across the wider town. Loft conversions and rear extensions are common project types on the Victorian terraced stock.
Planning considerations
Reigate & Banstead Borough Council is the local planning authority for Redhill. Some residential streets fall within conservation areas; we check the position for individual addresses at feasibility stage.
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 Redhill
Nearby coverage
Extensions in nearby areas
FAQs
Extensions in Redhill: FAQs
Do you provide extensions across all of Redhill?
Yes, we cover the RH1 postcode area in full, including Earlswood, Salfords, South Park, Whitebushes, St John's, Three Arch Road.
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 Redhill's Victorian terraces suitable for loft conversions?
Many are, subject to roof pitch and head height, which we assess on survey. Rear dormers are a common solution to gain additional headroom on this house type.
Get a quote for extensions in Redhill
Tell us about the property and what you have in mind, and we'll arrange a site visit.
Last reviewed 2026-07-19.