A Future Business Media publication
Sareth Build Journal

Plain-English guides to extending, renovating and self-building a UK home

Costs & Budgeting

Costs & Budgeting

Costs & Budgeting reviews, comparisons and buying guides from Sareth Build Journal.

All Costs & Budgeting guides & reviews

How Much Does a Single-Storey Extension Cost in 2026? Real UK Prices per m2 Costs & Budgeting How Much Does a Single-Storey Extension Cost in 2026? Real UK Prices per m2 Single storey extension cost in 2026, explained per m2: what drives the price, what is included, and the fees most quotes leave out. 9 min read