Kitchen extensions for homes in Gainsborough
Gainsborough homeowners can use us for the whole kitchen extension project: survey, design, planning or permitted development checks, building regulations and the build itself.
- Guide price in GainsboroughFrom £25,500 inc VAT
- PlanningOften permitted development (3–4 m), or prior approval up to 6–8 m
- Build time10–16 weeks on site
- Postcode districtsDN21

What is included
- Kitchen-led layout planning before the drawings are fixed
- Kitchen fitting by our team or coordination with your supplier
- Drainage and services designed for sinks, island and appliances
- Wide sliding or bifold doors to the garden
- Extraction routes and ventilation for building regulations
- Roof lantern or rooflights positioned over the work zones
How much does a kitchen extension cost in Gainsborough?
For Gainsborough we adjust our national guide rates by ×0.95, the factor we use for East Midlands. Figures include VAT; your written quote after the survey replaces them.
Typical rates in Gainsborough: £1,710 to £3,320 per m² including VAT, depending on specification.
| Size | Essential | Standard | Premium |
|---|---|---|---|
| 3 m × 5 m 15 m² | £25,500 – £30,000 | £29,500 – £38,000 | £37,500 – £50,000 |
| 4 m × 5 m 20 m² | £34,000 – £40,000 | £39,500 – £50,500 | £50,000 – £66,500 |
| 4 m × 7 m 28 m² | £47,500 – £56,000 | £55,500 – £70,500 | £70,000 – £93,500 |
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.
Planning and approvals in Gainsborough
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.
The planning position for a specific Gainsborough address depends on its history and any designations, which is why we check it at the first visit.
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).
Working in Gainsborough
Postcode districts we cover around Gainsborough include DN21. We also work in nearby Scunthorpe (14 miles), Lincoln (14 miles), Grimsby (31 miles), Cleethorpes (33 miles).
Homes across the East Midlands often have usable side land or a driveway beside the house, which opens up side and wraparound options.
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
First, a site visit: we look at the house, garden, access and drains and listen to what you need.
Design and approvals
Drawings are prepared and agreed with you, then submitted for the right planning route and building regulations approval.
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
We build it with one project manager, book the building control inspections and hand over the completion certificate.
Questions people ask about kitchen extensions
Can I see a price before committing to anything?
Yes. The guide prices on this page are adjusted for Gainsborough, 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 you cover all of Gainsborough?
Yes. We cover Gainsborough and the surrounding parts of Lincolnshire. Site visits are free and there is no obligation.
Who do I contract with for a kitchen extension in Gainsborough?
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.
How much does a kitchen extension cost?
For the extension itself our guide range is about £1,710 to £3,320 per m² including VAT. A standard 20 m² kitchen extension is typically around £39,500 to £50,500 in Gainsborough, plus the kitchen itself, which commonly adds £9,000 to £20,000 for a mid-range design.
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 Gainsborough
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.