Loft Conversion Cost by Region UK 2026
Loft conversion costs vary by up to 50 % across the UK, with London the most expensive and the North + Wales the cheapest. Use this table for 2026 ballpark figures for a typical 25 m² dormer conversion.
Quick answer
Typical UK price range: £27,000–£85,000. Typical time: Varies.
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Key points
- London: £55,000–£85,000 (+35 % vs UK average)
- South East: £48,000–£75,000 (+25 %)
- South West: £42,000–£62,000 (+10 %)
- Midlands: £38,000–£55,000 (baseline)
- North: £34,000–£50,000 (−10 %)
- Scotland: £36,000–£52,000 (−5 %)
- Wales: £34,000–£50,000 (−10 %)
Cost breakdown
| Item | Low | High |
|---|---|---|
| London dormer (25 m²) | £55,000 | £85,000 |
| South East dormer (25 m²) | £48,000 | £75,000 |
| South West dormer (25 m²) | £42,000 | £62,000 |
| Midlands dormer (25 m²) | £38,000 | £55,000 |
| North England dormer (25 m²) | £34,000 | £50,000 |
| Scotland dormer (25 m²) | £36,000 | £52,000 |
| Wales dormer (25 m²) | £34,000 | £50,000 |
Cost by UK region
| Region | Typical cost |
|---|---|
| London | £75,600 |
| South East | £70,000 |
| South West | £61,600 |
| Midlands | £56,000 |
| North England | £50,400 |
| Scotland | £53,200 |
| Wales | £50,400 |
How to save money
- Quotes from outside your region rarely save money — material delivery and travel cancel the gain
- London + South East: factor in higher party-wall surveyor and planning fees
- North + Wales: smaller specialist firms often beat national chains
How to find a trusted tradesperson
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FAQs
Why is London so much more expensive?
Labour rates are 30–40 % higher, parking and access add cost, and party wall arrangements are more involved in Victorian terrace streets.
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Disclaimer: Prices are guide ranges based on 2026 UK market data. Get quotes from local tradespeople for accurate pricing.