Kitchen extensions across East Sussex
Our design and build teams take on kitchen extensions in East Sussex, from the first measured survey through planning and building control to the finished room.
- Guide priceFrom £30,000 inc VAT
- PlanningOften permitted development (3–4 m), or prior approval up to 6–8 m
- Towns covered11
- Site visitFree, no obligation

Towns in East Sussex
Working in East Sussex
Towns we cover in East Sussex include Brighton, Eastbourne, Hastings, Hove, Bexhill-on-Sea, Hailsham, Seaford, Crowborough. The South East has a broad mix of 1930s semis, post-war estates, newer developments and period cottages, and many houses have enough garden for a generous rear extension.
Included in a typical project
- Kitchen-led layout planning before the drawings are fixed
- Kitchen fitting by our team or coordination with your supplier
- Wide sliding or bifold doors to the garden
- Roof lantern or rooflights positioned over the work zones
- Drainage and services designed for sinks, island and appliances
- Extraction routes and ventilation for building regulations
Kitchen extension prices in East Sussex
Labour and material costs vary across the UK, so for East Sussex we use our South East England factor (×1.12). The ranges include VAT and exclude design, structural and council fees.
Typical rates in East Sussex: £2,020 to £3,920 per m² including VAT, depending on specification.
| Size | Essential | Standard | Premium |
|---|---|---|---|
| 3 m × 5 m 15 m² | £30,000 – £35,500 | £35,000 – £45,000 | £44,500 – £59,000 |
| 4 m × 5 m 20 m² | £40,000 – £47,500 | £47,000 – £59,500 | £59,000 – £78,500 |
| 4 m × 7 m 28 m² | £56,000 – £66,000 | £65,500 – £83,500 | £83,000 – £110,000 |
Build cost only. A mid-range kitchen, supplied and fitted, typically adds £9,000 to £20,000.
For a figure based on your own dimensions, use our guide-price tool.
Do I need planning permission in East Sussex?
In England a single-storey rear extension can usually go up to 3 m beyond the original rear wall of a semi-detached or terraced house, or 4 m on a detached house, without a planning application, provided it is no more than 4 m high, keeps eaves to 3 m within 2 m of a boundary and, with other buildings, covers no more than half the land around the original house. The larger home extension prior approval scheme raises those depths to 6 m and 8 m, with neighbours notified and a 42-day decision.
In a conservation area, national park, National Landscape, the Broads or a World Heritage Site the permitted development limits are tighter (no side or two-storey extensions without an application). Listed homes need listed building consent, and if permitted development rights have been removed, any extension needs an application.
Building regulations approval is separate from planning. In England you can use the council's building control team or a registered building control approver; a full plans application gets the drawings checked before work starts, and the inspector signs the work off with a completion certificate.
If the work involves a shared wall, building on the boundary, or digging foundations within 3 m (sometimes 6 m) of a neighbour's building, the Party Wall etc. Act 1996 applies and notice must be served before work starts: two months for work to a party wall, one month for new walls on the boundary and for excavations.
Applications are decided by the local planning authority (your district, borough or unitary council).
Our process, step by step
Site visits are free and there is no obligation. Where drawings are needed, the design stage is priced in writing before it starts.
Free site visit
We visit your East Sussex home, measure up, talk through what you want and check the planning position.
Design and approvals
We produce the drawings and structural design, and manage the approvals so they are in place before work starts.
Fixed written price
We confirm the build price in writing, based on the approved drawings and the finishes you have chosen.
Build and sign-off
The build is managed from start to finish, inspected at each stage and signed off on completion.
Kitchen extension questions answered
Can I see a price before committing to anything?
Yes. The guide prices on this page are adjusted for East Sussex, and the guide-price tool gives a range for your own size. After the survey you get a written price before anything is agreed.
Do I need building regulations approval in East Sussex?
Yes. Almost every extension needs it, whatever the planning route. We prepare the drawings and book the inspections.
Do you cover all of East Sussex?
Yes, across the whole of East Sussex. Site visits are free and there is no obligation.
Where should the island go?
Usually under the brightest part of the roof and away from the main walkway to the garden. We test two or three layouts on the plan before deciding.
Can you fit a kitchen I buy elsewhere?
Yes. We can fit it or work with your supplier’s fitters. We need the layout early so that drains, services and lighting are in the right place.
Book a free site visit in East Sussex
We will measure up, check the planning position and give you honest guide figures.
- Free, no-obligation site visit
- Planning route checked before you spend on drawings
- Written price once the design is agreed
- Building control sign-off at the end
Prefer to talk? Call 0800 088 6341 or .
Book a free site visit
Tell us a little about the project and we will arrange a time.