Cambridge kitchen extensions, designed and built
We design and build kitchen extensions for houses in Cambridge, with a written price once the survey and design are done and one point of contact throughout.
- Guide price in CambridgeFrom £28,500 inc VAT
- PlanningOften permitted development (3–4 m), or prior approval up to 6–8 m
- Build time10–16 weeks on site
- Postcode districtsCB1, CB2, CB3, CB4, CB5
Covering Cambridge
Postcode districts we cover around Cambridge include CB1, CB2, CB3, CB4, CB5, CB22. Nearby, we also take on projects in Ely (15 miles), Huntingdon (16 miles), St Neots (16 miles), March (24 miles).
For homes towards Suffolk, Newmarket is around 13 miles away. The East of England mixes market-town terraces, inter-war semis and modern estates. Clay soils are common in parts of the region, which can affect foundation design.
Do I need planning permission in Cambridge?
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.
Before any drawing is finalised we check whether the house is listed, in a conservation area or subject to an Article 4 direction.
Building over or within 3 m of a public sewer needs the water company's consent, usually through a build-over agreement, before the foundations go in.
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.
Applications are decided by the local planning authority (your district, borough or unitary council).
Kitchen extension prices in Cambridge
These guide figures apply our East of England adjustment (×1.06) to national rates. They include VAT at 20% and cover the build itself; design and council fees are listed separately.
Typical rates in Cambridge: £1,910 to £3,710 per m² including VAT, depending on specification.
| Size | Essential | Standard | Premium |
|---|---|---|---|
| 3 m × 5 m 15 m² | £28,500 – £33,500 | £33,000 – £42,500 | £42,000 – £56,000 |
| 4 m × 5 m 20 m² | £38,000 – £45,000 | £44,500 – £56,500 | £56,000 – £74,500 |
| 4 m × 7 m 28 m² | £53,000 – £62,500 | £62,000 – £79,000 | £78,500 – £104,000 |
Build cost only. A mid-range kitchen, supplied and fitted, typically adds £9,000 to £20,000.
Want a range for your exact size? The guide-price tool takes about a minute.
What is included
- Kitchen-led layout planning before the drawings are fixed
- Drainage and services designed for sinks, island and appliances
- Extraction routes and ventilation for building regulations
- Roof lantern or rooflights positioned over the work zones
- Wide sliding or bifold doors to the garden
- Kitchen fitting by our team or coordination with your supplier
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
A designer visits, takes measurements and photos, and discusses layouts, budget and timing with you.
Design and approvals
Once the layout is agreed, we deal with the council: planning permission or written confirmation that none is needed, plus building control.
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
Our team builds the extension, keeps you updated weekly and finishes with building control sign-off.
Kitchen extension questions answered
Who do I contract with for a kitchen extension in Cambridge?
Your contract is with S&K Property Investments and Improvement Ltd, which designs and manages the project and the build teams who carry it out.
Do I need building regulations approval in Cambridge?
Yes. Almost every extension needs it, whatever the planning route. We prepare the drawings and book the inspections.
Can I see a price before committing to anything?
Yes. The guide prices on this page are adjusted for Cambridge, and the guide-price tool gives a range for your own size. After the survey you get a written price before anything is agreed.
How much does a kitchen extension cost?
For the extension itself our guide range is about £1,910 to £3,710 per m² including VAT. A standard 20 m² kitchen extension is typically around £44,500 to £56,500 in Cambridge, plus the kitchen itself, which commonly adds £9,000 to £20,000 for a mid-range design.
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.
Book a free site visit in Cambridge
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.