Creating a large master suite with bathroom costs up to 200 per square foot.
Attic conversions cost 2016.
Depending on size and the required optional extra turning an unused attic space into luxurious living quarters will cost anything between 60 000 and 120 000.
This option is the most expensive as it requires the complex removal and rebuild of the existing roof.
This could be a hip to gable loft conversion or a mansard conversion for example.
Make sure you know these five key things before you start work to ensure your conversion is as stress free as possible.
However the average dormer loft conversion with a double bedroom and en suite costs about 35 000 45 000.
Changing the roof structure for a loft conversion.
Loft conversions are a versatile way to add space and value to your home but converting a loft can be a complicated and expensive process.
If space allows you can for example opt for a bedroom with ensuite with an adjoining living area.
The prices are slightly higher in inner london due to increased labour and material prices in the city so expect to pay on 1 000 1 200 pounds more.
You ll pay less for a simple home office space that you re not using as a bedroom.
The cost of loft conversion in london starts from 12 700 for 20m for a standard loft conversion and 28 200 for a deluxe loft conversion.