If you’re thinking about extending your home in Norwich, one of the first questions you’ll ask is: how much will it cost?
The truth is, the cost of a home extension can vary depending on size, design, and finish. But in this guide, we’ll break it down clearly so you know what to expect.
💰 Average Cost of a Home Extension in Norwich
In Norwich and surrounding areas, typical extension costs are:
- Single-storey extension: £1,800 – £2,500 per m²
- Double-storey extension: £2,000 – £3,000 per m²
- Kitchen extension: £25,000 – £60,000+
👉 For example:
A standard 20m² rear extension could cost between £36,000 and £50,000, depending on specification.
🔧 What Affects the Cost?
Several factors can influence the final price:
1. Size of the Extension
Larger extensions cost more overall, but the price per m² can reduce slightly.
2. Design & Complexity
Simple rectangular builds are more cost-effective than:
- Wrap-around extensions
- Bespoke designs
- Structural alterations
3. Materials & Finish
Costs increase with:
- Bi-fold doors
- High-end kitchens
- Premium flooring and finishes
4. Ground Conditions
Poor ground or drainage issues may require:
- Additional foundations
- Structural work
📍 Do You Need Planning Permission in Norwich?
Many home extensions fall under permitted development, meaning you may not need full planning permission.
However, this depends on:
- The size of the extension
- Your property type
- Your location
👉 We always recommend checking or working with experienced local builders who understand Norwich regulations.
🏗️ Real Example: Norwich Home Extension
At BuildX Builders, we recently completed a rear home extension in Norwich, transforming a small kitchen into a modern open-plan living space.
The project included:
- Structural knock-through
- Bi-fold doors installation
- Full kitchen fit-out
The result? A bright, spacious area perfect for modern living.
✅ Why Choose Local Norwich Builders?
Working with experienced local builders means:
- Knowledge of Norwich planning rules
- Trusted local suppliers
- Reliable, high-quality workmanship
At BuildX Builders Ltd, we specialise in home extensions across Norwich, delivering projects on time and to a high standard.
📞 Get a Quote for Your Extension
Thinking about extending your home?
We’re here to help you plan, design, and build your ideal home extension in Norwich.
⏱️ How Long Does a Home Extension Take?
Most home extensions in Norwich take between 8–16 weeks, depending on size and complexity.
