Rough Cost Of Ground Floor Extension

2 000 per square metre for ground floor extensions.

Rough cost of ground floor extension. Building work costs depend on the results you re after but reckon to pay around 1 500 to 1 900 per square metre for basic quality. Our extension is 5m by 4 5m so 22 5 square metres. In london and the south east this could be anywhere between 1 800 and 2 300 per m2. The cost of a typical high spec glass extension is around 2 500 per m.

So 30 000 50 45 000 for the basic build cost. The cost of excavating beneath an existing property and supporting it whilst the structure is underpinning is expensive and the calculator uses a multiple of 3 x the average cost per square meter for an above ground extension. As a rule of thumb you can add 50 extra to the build cost of a single storey extension. 1 900 to 2 200 per square metre for good quality.

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 add a large kitchen and or living room extension on the ground floor with two new bedrooms and a bathroom above. There are different ways to break down the cost of your extension but here are some rough costs. A rough building cost would be 45 000. House extension cost calculator are you looking for more space or thinking of buying a house and extending it yourself.

If it all depends how much does a single storey extension cost. See the bottom of the page for how much my extension ended up costing. The average house extension cost in london in 2019 is between 1 600 2 100 per m. 1 500 per square metre for upper floors extensions per floor.

However in reality our build came up much less but partly because it is a simple square ish extra room. And 2 200 to 2 400 per square metre for excellent quality when building a single storey extension. 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. Speaking to our experts we have established that the basic price of building an extension is 1 100 to 1 400 per square metre.

Other parts of the country could be up to 20 less depending on the location and site condition. These prices are for for a good quality extension. Below we have broken down different elements of an extension build and the different kind of costs involved but the key underlying cost relates to the size of the extension being built. Add on 10 15 for professional fees architect planning application building regs structural engineer 6 750 at 15 vat 9 000 double storey house extension cost 60 750.