Is a Loft Conversion Cheaper Than Moving? (UK 2026)
When you need an extra bedroom, the real question is convert or move. In 2026 a typical loft conversion costs £40,000-£70,000 and adds a bedroom, often an en-suite, and 10-20% to your home's value. Moving to a larger home looks simpler, but the cost of moving - stamp duty, estate agent fees, legal costs, removals and the price gap to a bigger house - frequently totals £30,000-£60,000+ with no physical improvement to show for it. This guide compares the two, pound for pound.
The Real Cost of Each Option
The headline price of a bigger house hides tens of thousands in transaction costs that vanish the moment you move. A loft conversion converts a similar sum into permanent extra space and value in a home you already like. Here is where the money actually goes.
Loft conversion (£40k-£70k)
A dormer or hip-to-gable loft typically adds a double bedroom and en-suite for £40,000-£70,000, adding 10-20% to value. You keep your location, garden, school catchment and neighbours.
Stamp duty on moving up
The biggest hidden cost of moving. Trading up to a larger home can mean £5,000-£30,000+ in Stamp Duty Land Tax alone, depending on price - money you never get back.
Estate agent & legal fees
Agent fees of 1-2% (£4,000-£10,000 on a typical home) plus £1,500-£3,000 in conveyancing for both sale and purchase.
Removals & the price gap
Removals £1,000-£3,000, plus the difference between your home and a larger one - often the single largest sum, and usually far more than a loft conversion.
Disruption & time
A loft conversion takes 6-10 weeks and you stay put. Moving means viewings, chains, packing and the risk of a sale falling through - a different but very real cost.
When moving does win
If you need to change area, school catchment or want a fundamentally different property, moving can be the right call even at higher cost. A loft only works if you like where you live.
Stamp duty, fees and price gaps vary widely by property value and region; figures are indicative 2026 UK ranges. Run your own numbers with current SDLT rates before deciding.
Common Questions
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