Two Floor Extension Cost

Read about extension costs per square metre in our guide here.

Two floor extension cost.

Two storey side or rear extensions are more cost effective than single storey extensions coming in at around 1 320 to 1 620 per m for a standard build so with this budget you could extend by at least 35m sufficient space to. If you need to add children s bedrooms with a bathroom and or a master bedroom with ensuite with an additional living area or parent s retreat then a second storey addition may be a better option. The average cost of a double storey extension cost on average 60 000 largely dictated by your location within the country the size of the space and how you plan to use the additional space. House extension cost calculator are you looking for more space or thinking of buying a house and extending it yourself.

The average cost per square metre for a single storey extension is therefore greater than for a two storey extension with the same footprint all other things being equal whilst a three storey design or a two and a half storey design. Naturally an extension over two floors would increase by 50 per cent of the costs and would be a minimum of around 50 000 dollars plus the additional costs mentioned above. Many sources claim that a second storey will be priced at only half or two thirds of the cost of the first floor so if the single storey extension is 20msq and costs 22 000 the second floor could be an additional 11 000 for a total of 33 000. As a general rule an 80 square metre ground floor extension costs between 164 500 and 310 000.

In london and the south east the average cost per m2 is around 1 500 2 000. The average cost per m2 for an extension outside of london is between 1 200 1 500. How much does a two storey extension cost. Well before you go dreaming of sky lights and kitchen islands take a look at our house extension cost calculator below to determine how much you may expect to pay for the labour costs in england and wales.

For two storey extensions add 50 to the cost of a single storey extension. How much does a double storey extension cost. That works out to between 2056m2 and 3875m2. The same calculation used for single storey extensions can also be applied to those that extend over several floors.

The difference is in the type of construction and the quality of the inclusions. If you re adding a second storey the cost will be about 50 percent more than a ground floor extension.