Loft Conversion and Extension Cost Guide
Construction Costs 
The amount you pay to build your loft conversion or extension varies on the type of build and features you require. At the time of publishing this guide June 2017, we would offer the following prices as a guide per square meter. Please note that these prices exclude VAT and fees.
|
Cost per Loft Conversion type |
|
|
Velux Conversion (per m2) |
£1,200 - £1,500 |
|
Dormer Conversion (per m2) |
£1,680 - £2,400 |
|
Mansard Conversion (per m2) |
£1,800 - £2,600 |
|
Cost per Extension type |
|
|
Single Storey extension (per m2) |
£1,500 - £2,000 |
|
Two Storey extension (per m2) |
£2,250 - £3,000 |
|
Building Works Costs |
|
|
Kitchens |
£10,000 - £15,000 |
|
Bathrooms |
£4,500 - £11,000 |
|
New Boiler |
£1,800 - £3,500 |
|
Underfloor Heating (per m2) |
£45 |
|
Radiators (per m2) |
£30 |
|
Decorating (per m2) |
£77 |
|
Flooring (per m2) |
£24 |
Require Safe, Cost Effective Demolition Services? 