How much should I budget for a timber-framed extension?

A timber-framed extension is a beautiful, high-impact way to add space, light, and value to your home — but how much should you budget?

Costs vary depending on size, materials, finishes, and site conditions. At Axe & Timber, our typical timber-framed extensions start from around £2,500–£3,500 per square metre, fully finished.

Here’s what influences price:

• Type of timber (e.g. oak is more expensive than larch)

• Roof design and glazing options

• Insulation and internal finishes

• Groundwork complexity

  
  

While timber may seem like a premium option, it often saves on build time and long-term maintenance — especially with sustainable choices like oak and Douglas fir. Plus, a well-designed extension can increase your property’s value significantly.

We offer transparent quotes, clear timelines, and guidance to help you get the most from your investment.