Key Takeaway
How much does a kitchen extension cost in Hampshire? Complete 2025 pricing guide covering build costs (£45,000-£90,000), design fees, and kitchen fitting. Use our free calculator for your exact estimate.
Kitchen Extension Cost Hampshire 2025: What You'll Really Pay
A kitchen extension is one of the most popular home improvements in Hampshire, adding valuable living space and potentially £50,000-£100,000 to your property value. But how much does a kitchen extension actually cost? Use our extension cost calculator for an instant estimate, or read on for detailed 2025 pricing.
Kitchen Extension Cost Summary 2025
A typical kitchen extension in Hampshire costs between £45,000 and £90,000 including the kitchen itself. Here's the breakdown:
Build Costs by Size
- Small (15m²): £33,000 - £42,000 build only
- Medium (25m²): £55,000 - £70,000 build only
- Large (35m²): £77,000 - £98,000 build only
Plus Kitchen Fitting
- Budget kitchen: £8,000 - £12,000
- Mid-range kitchen: £15,000 - £25,000
- High-end kitchen: £30,000 - £50,000+
Plus Design & Professional Fees
- Essential Package: £1,350 + VAT (planning drawings)
- Pre-Build Package: £1,950 + VAT (complete service)
- Premium Package: £2,950 + VAT (full support)
What Affects Kitchen Extension Costs?
1. Size and Layout
Kitchen extensions typically range from 15m² to 40m². Our extension cost calculator helps you determine the right size for your budget and requirements.
2. Specification Level
- Standard spec: UPVC windows, standard roof, basic finishes (£2,200/m²)
- Mid-range: Bi-fold doors, roof lantern, quality finishes (£2,500/m²)
- High spec: Premium glazing, underfloor heating, bespoke finishes (£2,800/m²+)
3. Structural Requirements
Knocking through into existing rooms requires steelwork (£1,500-£4,000 depending on span) and may need party wall agreements with neighbours.
4. Services and Utilities
Relocating plumbing, gas, and electrics adds £3,000-£8,000 to kitchen extension costs.
Kitchen Extension Cost Breakdown Example
Here's a real example for a 25m² kitchen extension in Winchester:
| Item | Cost |
| Design Package (Pre-Build) | £1,950 + VAT |
| Build (25m² @ £2,400/m²) | £60,000 |
| Structural steelwork | £3,500 |
| Kitchen (mid-range) | £18,000 |
| Underfloor heating | £2,500 |
| Landscaping/making good | £3,000 |
| Total | £89,000 |
How to Reduce Kitchen Extension Costs
- Use fixed-fee design services: Save £2,000-£4,000 vs hourly rates with Hampshire Build
- Stay within permitted development: Avoid planning fees and delays
- Get multiple builder quotes: Our Pre-Build package includes tender-ready drawings
- Phase the work: Build first, fit kitchen later if budget is tight
- Choose standard sizes: Bespoke elements cost significantly more
Calculate Your Kitchen Extension Cost
Every kitchen extension is different. Our free extension cost calculator gives you a personalised estimate in under 60 seconds.
Simply enter your extension size and specification to receive:
- Instant build cost estimate
- Design package recommendations
- Local planning insights for your postcode
- Detailed proposal by email
