The biggest factors that affect price are the size of the extension your location and the number of dormers.
Loft conversion with roof terrace cost.
How much does a loft conversion cost.
This option is the most expensive as it requires the complex removal and rebuild of the existing roof.
Are cost effective loft conversions are a cheaper way of expanding the size of your home.
For the purpose of this cost breakdown we ve based it on a 40 000 conversion to create a loft space of approximately 30m2 with a dormer and a roof light.
Room in roof loft conversion.
This could be a hip to gable loft conversion or a mansard conversion for example.
Add value a loft conversion can increase the value of your property by as much as 15 says the federation of master builders and as much as 20 according to nationwide building society.
A loft conversion typically costs between 21 000 44 000.
As the simplest method of converting a loft this is the cheapest way to proceed though it is only suitable for some homes.
Prices start at around 15 000 for a room in the roof loft conversion which is the cheapest and most straight forward option this will usually involve.
Dormer windows add extra light to your new room and also significant extra height.
This approach might allow you to fit in both an ensuite and bedroom.
Costs will be higher if you re making significant changes to the size of the roof space and are adding a bathroom.
Room in loft conversion costs.
Dormer loft conversion costs.
On average loft conversions can cost anything from 20 000 to more than 60 000.
However the average dormer loft conversion with a double bedroom and en suite costs about 35 000 45 000.
From hip to gable to dormer or mansard there are lots of different options when it comes to loft conversions and lots of escalating costs to go with them.
Excluding finishes like windows flooring sanitaryware the average cost of a standard loft conversion can be between 1 200 and 2 000 per sqm.
Dormer loft conversion costs.
Electrics lighting and heating.
As a minimum loft conversions with roof lights only cost 1 500 per square metre excluding vat and fees 140 per square foot.
The cost is generally between 15 000 and 20 000 with prices tending to be higher in london and the south east where tradespeople are more in demand.
Loft conversion stairs cost the staircase is one of the fundamental elements in a loft conversion and there are a variety of options available at varying costs.
Changing the roof structure for a loft conversion.
The variation in the cost per square meter depends on the type of loft conversion the size of the alterations to the roof the access the type of finishing and the location.
You could pay up to 63 000 if you want a particularly large extension.
Here is a rough price guide for the most popular loft.