Extensions Guides
Extensions calculators
Extension vs Moving House: Which Makes Financial Sense?
Extending and moving both cost real money in different ways. A practical framework for working out which makes more financial sense for your situation.
Kitchen Extension Cost: What Affects the Price
A kitchen extension combines the cost of a structural extension with a full kitchen fit-out — here's how the two combine, and what drives the total.
Common Extension Mistakes to Avoid
The same handful of mistakes account for most extension projects that go over budget, over time, or both. Here's what they are and how to avoid them.
How Long Does a Single-Storey Extension Take?
A realistic week-by-week view of how long a single-storey extension actually takes, from planning through to finished space.
Extension Labour Costs Explained
On a typical extension, labour and materials run closer to an even split than on almost any other project type — here's what the trade cost actually covers.
How Much Does a Double-Storey Extension Cost?
A double-storey extension costs more than a single-storey one overall — but less than double, since you get two floors of new space for one roof and one set of foundations.
How Much Does a Single-Storey Extension Cost?
Single-storey extension costs vary enormously by size, spec and whether you're extending the kitchen or adding a separate room. Realistic UK ranges and what actually drives the price.