Velux Loft Conversion
A Velux loft conversion typically costs £15,000-£28,000 in London . That makes it the cheapest type by a wide margin. The table below breaks the figure down for a standard two-bedroom terraced or semi-detached house . These prices reflect London rates in 2026. Outside the capital, costs are generally 10-20% lower.
A Velux loft conversion in London typically costs between £18,000 and £48,000 in 2026 for a full design and build service. A basic Velux conversion creating one room costs £18,000 to £30,000. A larger Velux conversion with en-suite bathroom costs £28,000 to £48,000. See our full loft conversion cost guide for a comparison of all conversion types.
Velux Loft Conversion London
A Velux loft conversion in London costs £30,000-£55,000 and takes 6-8 weeks — the cheapest, fastest loft type. It insulates the existing roof slope and installs rooflights to create a habitable room, with no structural roof alteration. Almost always permitted development with no planning permission required. Works best on properties with steep roof pitches and existing ridge height ...
Uncover the 2026 loft conversion cost in London . Our definitive guide details prices from Velux to Mansard, helping you budget and avoid hidden fees.
Loft Conversion Cost London 2026
How much does a loft conversion cost in London ? A loft conversion in London costs between £25,000 and £90,000+ depending on type. Velux conversions start at £25,000, dormer conversions cost £45,000-£65,000, and mansard conversions cost £70,000-£90,000+. A free site visit gives you an exact fixed-price quote.
Complete 2026 guide to loft conversion costs in London . Dormer from £45,000, Mansard from £60,000, Velux from £25,000. Real prices, what's included, and how to budget.
Velux Loft Conversion Cost UK 2026 (Full Breakdown)
How much does a Velux (rooflight) loft conversion cost in 2026 UK? Typical £22,000-£38,000 fully finished. Cost by m², staircase route and Velux count.
A Velux loft conversion costs between £15,000 and £30,000 in the UK. The cost depends on several factors such as location, the complexity of the project, permits, and the quality of finishes.
Velux Loft Conversion London
Velux and roof light loft conversions across London from £18,000. No planning permission needed. Fixed prices, 10-year warranty. Prime Loft .
A standard Velux conversion for a medium-sized loft of 30-40m2 with 3-4 Velux windows costs between £20,000 and £30,000. Velux conversions are the most cost -effective and require less work than other loft conversion types. Converting your attic into a functional space can boost your home's value by 20-25%, often exceeding the initial investment.