Moving vs Extending: The Real Cost Comparison
On paper, moving and extending can look similar. But once you add up every cost, the picture usually shifts. Here's an honest, line-by-line way to compare them.
The cost of moving — in full
To gain, say, two extra rooms by moving up the ladder, you're often looking at a £75,000+ jump in house price, plus stamp duty, estate agent fees (1–2%), legal fees, removals, and the work you'll inevitably do on the new place. The hidden costs alone often run £30,000–£50,000.
The cost of extending — in full
A good two-room extension might cost £60,000–£90,000 all in, including our fixed design fee, the build, and finishes. That money stays in your home and usually adds value — and you keep the area, school and neighbours you already love.
Which wins?
If you're happy where you live, extending usually comes out ahead once moving's hidden costs are counted. If you genuinely want a new area or lifestyle, moving can be worth the premium. The numbers only tell half the story — but they tell an important half.
The honest takeaways
- ✓Moving's hidden costs (stamp duty, fees, removals) often hit £30,000–£50,000.
- ✓Extending keeps your money in your own home — and your area.
- ✓If location is the real driver, moving can still be the right call.
Questions people ask
Does stamp duty really make that much difference?
On a larger home it can be a very big number — often several thousand to tens of thousands of pounds. It's one of the costs that tips the comparison toward extending.
Can you help me compare for my own home?
Yes — on a free Build, Wait or Move Call we'll talk through your numbers honestly, including what an extension would realistically cost for your house.
Not sure whether to build, wait or move?
That's exactly what the call is for. We'll be straight with you — no pressure, no jargon, no nasty surprises.