Blackburn, Lancashire
Kitchen Extension in Blackburn
A kitchen extension creates a modern, open-plan living and dining space, typically extending the rear of the property to accommodate a larger kitchen area.
Estimated Cost
£22,878 – £36,900
Based on 18m² at local rates
10–16 weeks typical duration
Planning permission: Usually not required
Cost Breakdown for Kitchen Extension
Estimated costs for a typical 18m² kitchen extension project, adjusted for local labour and material rates.
| Category | Low Estimate | High Estimate |
|---|---|---|
| Foundations & Groundworks | £2,745 | £4,428 |
| Structural Walls | £3,432 | £5,535 |
| Roof Structure & Covering | £2,288 | £3,690 |
| Windows & Doors | £1,830 | £2,952 |
| Plumbing & Drainage | £1,830 | £2,952 |
| Electrical Installation | £1,373 | £2,214 |
| Plastering & Rendering | £1,373 | £2,214 |
| Flooring | £1,144 | £1,845 |
| Kitchen/Bathroom Fitting | £2,288 | £3,690 |
| Decoration & Finishing | £1,144 | £1,845 |
| Professional Fees | £2,288 | £3,690 |
| Contingency (10%) | £1,144 | £1,845 |
| Total Estimated Cost | £22,878 | £36,900 |
* Costs are estimates based on regional averages and may vary depending on specification, access, and site conditions. Prices include VAT at 20%.
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