How much does it cost?
Short answer:Most projects cost between £25,000 and £65,000+
Average Loft Conversion Costs
Type | Cost |
Velux (rooflight) | £25,000 – £35,000 |
Dormer | £35,000 – £50,000 |
Hip-to-gable | £45,000 – £60,000 |
Mansard | £55,000 – £75,000+ |
💡 Prices depend on size, structure, and finish.
Most Popular Option
Modern Loft Conversion with Dormer Extension in Gloucester Dormer Loft Conversion in Gloucester – Modern Home Upgrade Completed Loft Conversion in Gloucester – Rear Dormer Extension
Dormer loft conversion
adds the most usable space
works for most homes
best value for money
What Affects Loft Conversion Cost in Gloucester?
Main factors:
Size of the loft
Structural work (steel, stairs)
Bathroom installation (+£4k–£10k)
Finish level (basic vs premium)
Real Example: Loft Conversion Cost in Gloucester
Dormer conversion
1 bedroom + ensuite
Build time: 5–6 weeks
Cost: ~£42,000
In Gloucester, a loft conversion can add up to 15–25% to your property value, depending on the project and loft conversion cost.
Is It Worth It?
In most cases — yes.
You get:
more space
higher property value
no need to move house
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