Kitchen extensions in Blackburn: design, approvals and build
Thinking about a kitchen extension for your Blackburn home? Start with a free site visit: we measure up, check what the council will allow and give you honest guide figures on the day.
- Guide price in BlackburnFrom £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 districtsBB1, BB2, BB3, BB5, BB6
Local to Blackburn
Our survey diary covers Blackburn, including BB1, BB2, BB3, BB5, BB6. We also work in nearby Darwen (4 miles), Accrington (5 miles), Chorley (9 miles), Rawtenstall (9 miles).
The North West has a high share of Victorian and Edwardian terraces with rear yards and outriggers, plus large areas of inter-war semis in the suburbs.
Do I need planning permission in Blackburn?
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 Blackburn address depends on its history and any designations, which is why we check it at the first visit.
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.
Applications are decided by the local planning authority (your district, borough or unitary council).
What we take care of
- Kitchen-led layout planning before the drawings are fixed
- Kitchen fitting by our team or coordination with your supplier
- Extraction routes and ventilation for building regulations
- Drainage and services designed for sinks, island and appliances
- Roof lantern or rooflights positioned over the work zones
What should I budget for a kitchen extension in Blackburn?
These guide figures apply our North West England adjustment (×0.95) to national rates. They include VAT at 20% and cover the build itself; design and council fees are listed separately.
Typical rates in Blackburn: £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.
Try the guide-price tool to see a range for your own size and finish.
How the project works
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
It starts with a visit to your house to measure, check access and talk through ideas and budget.
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
Who do I contract with for a kitchen extension in Blackburn?
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.
Will my neighbours in Blackburn be involved?
If a planning application or prior approval is needed, the council notifies neighbours. If the work is on or near a shared boundary, party wall notices may also be needed.
Do you cover all of Blackburn?
Yes. We cover Blackburn and the surrounding parts of Lancashire. Site visits are free and there is no obligation.
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 Blackburn, 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 Blackburn
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.